Tokushima University / Educator and Researcher Directory --- Kawasaki, Yu

Personal Web Page

https://researchmap.jp/read0191165 (researchmap)

Field of Study

○	solid state physics

Subject of Study

○	magnetism and superconductivity in strongly correlated electron system (heavy-fermion compound, anisotropic superconductivity, non-Fermi liquid, nuclear magnetic resonance)

Book / Paper

Academic Paper (Judged Full Paper):

1.	Ko-ichi Magishi, Hikaru Sugiura, Akihiko Hisada, Yu Kawasaki and Kuwai Tomohiko : NMR study of Si-substitution effect for Al in PrTi₂Al₂₀, Interactions, Vol.245, 11-1-11-8, 2024. (Link to Publication Site) ● Publication site (DOI): 10.1007/s10751-024-01853-w (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s10751-024-01853-w (DOI: 10.1007/s10751-024-01853-w)
2.	Yu Kawasaki, Hiro Mori, Yutaka Kishimoto, Ko-ichi Magishi, Koichi Nakamura, Zhangzhen He and Mitsuru Itoh : NMR Study of Magnetic Structure and Spin Dynamids in a-CoV₂O₆, JPS Conference Proceedings, Vol.38, 011118-1-011118-6, 2023. (Link to Publication Site) ● Publication site (DOI): 10.7566/JPSCP.38.011118 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.7566/JPSCP.38.011118 (DOI: 10.7566/JPSCP.38.011118)
3.	Ko-ichi Magishi, Hikaru Sugiura, Akihiko Hisada, Yu Kawasaki, Qiankun Lei, Yuki Matsumoto, Takahiro Namiki and Katsuhiko Nishimura : NMR Study of Caged Compounds TmTr₂Al₂₀ (Tr = Ti, V), JPS Conference Proceedings, Vol.38, 011107-1-011107-6, 2023. (Link to Publication Site) ● Publication site (DOI): 10.7566/JPSCP.38.011107 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.7566/JPSCP.38.011107 (DOI: 10.7566/JPSCP.38.011107)
4.	Yu Kawasaki, Ryo MORIOKA, Yutaka Kishimoto, Koichi Nakamura, Kohei NISHIYAMA, Takehide KOYAMA, Takeshi MITO, Takuyuki BABA, Toru YAMAUCHI, Masahiko ISOBE and Yutaka UEDA : ⁵¹V-NMR study of charge order induced by cation order in -Ag_2/3V₂O₅, Journal of Physics: Conference Series, Vol.807, No.062001-1 062001-6, 2017. (Tokushima University Institutional Repository) ● Metadata: 112415 (Link to Publication Site) ● Publication site (DOI): 10.1088/1742-6596/807/6/062001 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85018318494 (Tokushima University Institutional Repository: 112415, DOI: 10.1088/1742-6596/807/6/062001, Elsevier: Scopus)
5.	Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, A. Koda, K.H. Satoh, R. Kadono, J.L. Gavilano, H. Luetkens, T. Nakajima and Y. Ueda : μSR study of A-site ordered perovskite manganite LaBaMn₂O₆, Journal of Physics: Conference Series, Vol.391, No.1, 012096-1-012096-4, 2012. (Link to Publication Site) ● Publication site (DOI): 10.1088/1742-6596/391/1/012096 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/1742-6596/391/1/012096 (DOI: 10.1088/1742-6596/391/1/012096)
6.	Yu Kawasaki, T. Minami, M. Izumi, Yutaka Kishimoto, Takashi Ohno, K.H. Satoh, A. Koda, R. Kadono, J.L. Gavilano, H. Luetkens, T. Nakajima and Y. Ueda : μSR investigation of magnetically ordered states in `A`-site ordered perovskite manganites `R`BaMn₂O₆ (`R` = Y and La), Physical Review B, Condensed Matter and Materials Physics, Vol.86, No.12, 125141-1-125141-8, 2012. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevB.86.125141 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1103/PhysRevB.86.125141 (DOI: 10.1103/PhysRevB.86.125141)
7.	Yukiichi Ideta, Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, Yoshitaka Michihiro, Zhangzhen He, Yutaka Ueda and Mitsuru Itoh : ⁵¹V NMR study of antiferromagnetic state and spin dynamics in quasi-one-dimensional BaCo₂V₂O₈, Physical Review B, Condensed Matter and Materials Physics, Vol.86, No.9, 094433-1-094433-5, 2012. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevB.86.094433 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1103/PhysRevB.86.094433 (DOI: 10.1103/PhysRevB.86.094433)
8.	Yo Tokunaga, Yo Saito, Hironori Sakai, Shinsaku Kambe, Naoyuki Sanada, Ryuta Watanuki, Kazuya Suzuki, Yu Kawasaki and Yutaka Kishimoto : NMR determination of noncollinear antiferromagnetic structure in TbCoGa₅, Physical Review B, Condensed Matter and Materials Physics, Vol.84, No.21, 214403, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevB.84.214403 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1103/PhysRevB.84.214403 (DOI: 10.1103/PhysRevB.84.214403)
9.	Yu Kawasaki, Jorge L. Gavilano, Lukas Keller, Jürg Schefer, Niels Bech_Christensen, Alex Amato, Takashi Ohno, Yutaka Kishimoto, Zhangzhen He, Yutaka Ueda and Mitsuru Itoh : Magnetic structure and spin dynamics of the quasi-one-dimensional spin-chain antiferromagnet BaCo₂V₂O₈, Physical Review B, Condensed Matter and Materials Physics, Vol.83, No.6, 064421, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevB.83.064421 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1103/PhysRevB.83.064421 (DOI: 10.1103/PhysRevB.83.064421)
10.	Shigeki Endou, Takashi Ohno, Yutaka Kishimoto, Daisuke Nishioka, Yoshitaka Michihiro, Yu Kawasaki, Yukiichi Ideta, Kazuo Kuriyama, Hiromi Hamanaka and Masahito Yahagi : ⁷Li Spin-Lattice Relaxation at Low Temperatures in a Superionic Conductor β-LiGa, Journal of the Physical Society of Japan, Vol.78, No.10, 104601-1-104601-5, 2009. (Summary) In order to investigate the Li+ ionic diffusion and the electronic states in a mixed conductor $eta$-LiGa with high Li+ ionic diffusibility and electron/hole conductivity, 7Li NMR linewidth and spin lattice relaxation measurements have been performed in 44.0, 47.0, and 50.0 at. % Li $eta$-LiGa samples at 10.03 MHz in the temperature range between 10 and 320 K. The onset temperature $T_{ext{MN}}=70$ K of the motional narrowing in 50.0 at. % sample has been determined from the temperature dependence of the linewidth. The Li+ ionic diffusion is found to contribute to the spin lattice relaxation rate $1/T_{1}$ down to ${im}0.5T_{ext{MN}}$ even below $T_{ext{MN}}$ where the motional narrowing does not occur. The high diffusibility of Li+ ions has been proved from a microscopic point of view. At low temperatures, the relations $1/T_{1}T=3.5imes 10^{-4}$, $3.8imes 10^{-4}$, and $5.1imes 10^{-4}$ s-1 K-1 are observed in 44.0, 47.0, and 50.0 at. % Li samples, respectively. The density of states of conduction electrons at the Fermi level in these compounds becomes higher with increasing Li content, which is consistent with the predictions by band calculations. (Keyword) β-LiGa / superionic conductor / Li[+] ionic diffusion / electronic states / NMR / spectrum / spin-lattice relaxation rate (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.78.104601 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679173826304 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.78.104601 (DOI: 10.1143/JPSJ.78.104601, CiNii: 1390282679173826304)
11.	Yutaka Kishimoto, Yu Kawasaki, Yukiichi Ideta, Shigeki Endou, Tetsu Tanaka, Masayoshi Tanabe, Takashi Ohno, Goutam Ghosh, A. K. Tyagi and Laxmi C. Gupta : ¹¹B NMR Study on rare earth ternary borides RRuB₂, Journal of Physics: Conference Series, Vol.176, No.1, 012039-1-012039-4, 2009. (Link to Publication Site) ● Publication site (DOI): 10.1088/1742-6596/176/1/012039 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/1742-6596/176/1/012039 (DOI: 10.1088/1742-6596/176/1/012039)
12.	Tanaka Tetsu, Yu Kawasaki, Endou Shigeki, Kimura Satoshi, Ideta Yukiichi, Kishimoto Yutaka, Ohno Takashi, Katayama Naoyuki, Nohara Minoru and Takagi Hidenori : Trimer V³⁺ Spin Singlet State and Pseudo Gap in LiVS₂ Studied by ⁵¹V and ⁷Li Nuclear Magnetic Resonance, Journal of the Physical Society of Japan, Vol.78, No.5, 054709-1-054709-5, 2009. (Summary) To clarify the electronic state in a two-dimensional triangular lattice LiVS2, we have performed 51V- and 7Li-NMR measurements. Below the phase transition temperature $T_{ext{c}}$ of about 310 K from the paramagnetic state to a nonmagnetic state, the Knight shift of both 51V and 7Li does not depend on temperature. The 51V and 7Li spin lattice relaxation rates $1/T_{1}$ show the exponential temperature dependence below $T_{ext{c}}$, which indicates a gap structure of the electronic state. These results are in agreement with a trimer singlet of V3+ spins below $T_{ext{c}}$. The increase in 7Li $1/T_{1}$ above $T_{ext{c}}$ indicates the existence of the pseudo gap and agrees with the increase in paramagnetic susceptibility with increasing temperature and with the small entropy change at $T_{ext{c}}$ compared with that in LiVO2. (Keyword) LiVS2 / two-dimensional triangular lattice / trimer spin singlet / Knight shift / spin-lattice relaxation (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.78.054709 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679173231360 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.78.054709 (DOI: 10.1143/JPSJ.78.054709, CiNii: 1390282679173231360)
13.	Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, A. Koda, K.H. Satoh, R. Kadono, J.L. Gavilano, H. Luetkens, T. Nakajima and Y. Ueda : Microscopic investigation of antiferromagnetic order in A-Site-Ordered Perovskite Manganite YBaMn₂O₆, Physica B : Condensed Matter, Vol.404, No.5-7, 781-784, 2009. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.physb.2008.11.174 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.physb.2008.11.174 (DOI: 10.1016/j.physb.2008.11.174)
14.	Yoshio Kitaoka, Kawasaki Shinji, Yu Kawasaki, Takeshi Mito and Guo-qing Zheng : Novel superconductivity at the magnetic critical point in heavy-fermion systems: a systematic study of NQR under pressure, Journal of Physics: Condensed Matter, Vol.19, No.12, 125202, 2007. (Link to Publication Site) ● Publication site (DOI): 10.1088/0953-8984/19/12/125202 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/0953-8984/19/12/125202 (DOI: 10.1088/0953-8984/19/12/125202)
15.	Yu Kawasaki, M. Izumi, Yutaka Kishimoto, Takashi Ohno, H. Tou, Y. Inaoka, M. Sera, K. Shigetoh and T. Takabatake : Energy gap formation in the valence fluctuating compound CeIrSb probed by Sb NMR and NQR, Physical Review B, Condensed Matter and Materials Physics, Vol.75, No.9, 094410-1-094410-5, 2007. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevB.75.094410 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1103/PhysRevB.75.094410 (DOI: 10.1103/PhysRevB.75.094410)
16.	Yu Kawasaki, Takeshi Minami, Yutaka Kishimoto, Takashi Ohno, Kazuko Zenmyo, Hidenori Kubo, Tomohiko Nakajima and Yutaka Ueda : Phase Separation in A-site Ordered Perovskite Manganite LaBaMn₂O₆ Probed by ¹³⁹La and ⁵⁵Mn NMR, Physical Review Letters, Vol.96, No.3, 37202-1-37202-4, 2006. (Summary) 139La- and 55Mn-NMR spectra demonstrate that the ground state of the A-site-ordered perovskite manganite LaBaMn2O6 is a spatial mixture of the ferromagnetic and antiferromagnetic regions, which are assigned to the metallic and the insulating charge ordered state, respectively. This exotic coexisting state appears below 200 K via a first-order-like formation of the antiferromagnetic charge ordered state inside the ferromagnetic metal one. The Mn spin-spin relaxation rate indicates that the ferromagnetic region coexisting with the antiferromagnetic one in LaBaMn2O6 is identical to the bulk ferromagnetic metal phase of the disordered form La0.5Ba0.5MnO3 in spite of the absence of A-site disorder. This suggests a mesoscopic rather than nanoscopic nature of the ferromagnetic region in LaBaMn2O6. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevLett.96.037202 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 16486760 ● Summary page in Scopus @ Elsevier: 2-s2.0-32644461395 (DOI: 10.1103/PhysRevLett.96.037202, PubMed: 16486760, Elsevier: Scopus)
17.	S. Kawasaki, M. Yashima, T. Mito, Yu Kawasaki, G.-q. Zheng, Y. Kitaoka, D. Aoki, Y. Haga and Y. Onuki : Phase diagram of antiferromagnetism and superconductivity in CeRhIn₅: a study of ¹¹⁵In-NQR under pressure, Journal of Physics: Condensed Matter, Vol.17, No.11, S889-S893, 2005. (Link to Publication Site) ● Publication site (DOI): 10.1088/0953-8984/17/11/019 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/0953-8984/17/11/019 (DOI: 10.1088/0953-8984/17/11/019)
18.	Y. Kitaoka, H. Kotegawa, A. Harada, S. Kawasaki, Yu Kawasaki, Y. Haga, E. Yamamoto, Y. Onuki, K.M. Itoh and E.E. Haller : Novel phase diagram of superconductivity and ferromagnetism in UGe₂ : a ⁷³Ge-NQR study under high pressure, Journal of Physics: Condensed Matter, Vol.17, No.11, S975-S986, 2005. (Link to Publication Site) ● Publication site (DOI): 10.1088/0953-8984/17/11/030 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/0953-8984/17/11/030 (DOI: 10.1088/0953-8984/17/11/030)
19.	Hisashi Kotegawa, Shinji Kawasaki, Yu Kawasaki, Yoshio Kitaoka, Yoshinori Haga, E Yamamoto, Yoshichika Onuki, Kohei M Itoh, E E Haller and H Harima : Evidence for Uniform Coexistence of Ferromagnetism and Unconventional Superconductivity in UGe₂: A ⁷³Ge-NQR Study under Pressure, Journal of the Physical Society of Japan, Vol.74, No.2, 705-711, 2005. (Keyword) itinerant ferromagnetism / unconventional superconductivity / UGe 2 / NQR under pressure / first-order phase transition (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.74.705 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679164519808 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.74.705 (DOI: 10.1143/JPSJ.74.705, CiNii: 1390282679164519808)
20.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Dexin Li, Yoshiya Homma and Yoshinobu Shiokawa : ¹³⁹La NQR Relaxation in a Superconductor La₃Ir₂Ge₂, Journal of the Physical Society of Japan, Vol.73, No.12, 3389-3393, 2004. (Summary) 同構造の Ce 化合物，Ce₃Rh₂Ge₂ (T_N=7.5 K) および Ce₃Ir₂Ge₂ における，Rh の Ir 置換による磁気秩序の消失は興味深い現象である．これらの系の基礎物性の解明には，4f 電子のない参照物質 La₃Rh₂Ge₂ や La₃Ir₂Ge₂ の研究も重要である．本論文では，¹³⁹La NQR により，La₃Ir₂Ge₂ の電子状態についての研究を行った．スペクトルは 2 本のピークよりなり，これがどの遷移に対応するかを議論した．次に，1/T₁ を測定し，常伝導状態で 1/T₁=4.06 T の関係を見出し，通常金属であると結論した．超伝導状態では，T_c=4.7 K の直下でコヒーレンスピークを示し，温度低下とともに，指数関数的に減少した．見積もられたエネルギーギャップは BCS 超伝導体の値とよく一致している． (Keyword) La 3Ir 2Ge 2 / superconductor / NQR / spectrum / spin-lattice relaxation (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.73.3389 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204188084480 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.73.3389 (DOI: 10.1143/JPSJ.73.3389, CiNii: 1390001204188084480)
21.	Mitsuharu Yashima, Shinji Kawasaki, Yu Kawasaki, Guo-qing Zheng, Yoshio Kitaoka, Hiroaki Shishido, Rikio Settai, Yoshinori Haga and Yoshichika Onuki : Magnetic Criticality and Unconventional Superconductivity in CeCoIn₅: Study of ¹¹⁵In-Nuclear Quadrupole Resonance under Pressure, Journal of the Physical Society of Japan, Vol.73, No.8, 2073-2076, 2004. (Summary) We report the systematic evolution of the superconducting (SC) characteristics of the heavy-fermion (HF) superconductor CeCoIn_5 via nuclear-quadrupole-resonance (NQR) measurement under pressure (P). The application of P significantly suppresses the nuclear spin-lattice relaxation rate 1/T_1 that is dominated by antiferromagnetic (AFM) spin fluctuations (SFs) specific to a quantum critical point (QCP). It is demonstrated that the marked suppression of AFM SFs leads to a reduction in the SC energy gap or in the coupling strength of the Cooper pair. T_c, nevertheless, increases with increasing P due to the increase in HF bandwidth. This is expected to make the lifetime of quasi-particles sufficiently long. (Keyword) heavy fermion / superconductivity / CeCoIn 5 / NQR, pressure (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.73.2073 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679162277120 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.73.2073 (DOI: 10.1143/JPSJ.73.2073, CiNii: 1390282679162277120)
22.	Yutaka Kishimoto, Yu Kawasaki and Takashi Ohno : ¹¹B NMR Study of Magnetism in RRh₃B₂ (R = La, Ce, Nd, Sm, Eu and Gd), Journal of the Physical Society of Japan, Vol.73, No.7, 1970-1981, 2004. (Summary) CeRh₃B₂ は小さな飽和磁気モーメント 0.38 μ_B にもかかわらず，高い磁気転移温度 115 K をもち，その磁気秩序の起源が関心を集めている．さまざまな研究がなされ，局在モーメントモデルが遍歴電子モデルよりも優位に立っているが，決定的な証拠は得られていない．最近，非常に質の高い単結晶試料が作製され実験が進められ，この系は再び脚光を浴びる事となった．ここに，我々も ¹¹B NMR による実験データを新たに加え，また物質として，EuRh₃B₂ も加えて系統的な解析を行い，4f電子と伝導電子間の混成強度と磁性との関係を議論し，局在モーメントモデルの立場での解釈を示した． (Keyword) RRh 3B 2 / magnetism / c-f hybridization / NMR / Knight shift / spin-lattice relaxation (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.73.1970 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679163950080 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.73.1970 (DOI: 10.1143/JPSJ.73.1970, CiNii: 1390282679163950080)
23.	Shinji Kawasaki, Takeshi MIto, Yu Kawasaki, Hisashi Kotegawa, Guo-qing Zheng, Yoshio Kitaoka, Hiroaki Shishido, Shingo Araki, Rikio Settai and Yoshichika Onuki : New superconducting and magnetic phases Emerge on the magnetic criticality in CeIn₃, Journal of the Physical Society of Japan, Vol.73, No.7, 1647-1650, 2004. (Keyword) heavy fermion / superconductivity / CeIn 3 / NQR / pressure / first-order phase transition (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.73.1647 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204186854144 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.73.1647 (DOI: 10.1143/JPSJ.73.1647, CiNii: 1390001204186854144)
24.	Yu Kawasaki, Yutaka Kishimoto, Noritaka Imai, Takashi Ohno, Hidenori Kubo, Shunsuke Yoshii and Mitsuo Kasaya : ²⁰⁹Bi-NQR Investigation of the Non-magnetic Heavy-fermion Compound CeRhBi, Journal of the Physical Society of Japan, Vol.73, No.3, 694-697, 2004. (Keyword) heavy-fermion compound / Kondo insulator / nuclear quadrupole resonance / CeRhBi (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.73.694 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679162358784 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.73.694 (DOI: 10.1143/JPSJ.73.694, CiNii: 1390282679162358784)
25.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Laxmi C. Gupta and Goutam Ghosh : La-NQR Probe of Strong-Coupling s-Wave Superconductivity in LaRu₃Si₂, Journal of the Physical Society of Japan, Vol.73, No.1, 190-193, 2004. (Summary) 価数揺動物質 CeRu₃Si₂ の基準物質として重要な LaRu₃Si₂ の電子状態を解明するため，¹³⁹La NQR による研究を行った．常伝導状態では，スピン格子緩和率 1/T₁ は温度に比例し，1/T₁=0.18 T の関係が得られ，系は単純金属と考えられる．超伝導状態では，BCS 超伝導体の場合の温度依存性を示し，エネルギーギャップは 2Δ/k_BT_c = 5.5 と大きな値をもつことが分かった．これらのことから，LaRu₃Si₂ の比較的高い超伝導転移温度 ( 6.5 K ) は，高い伝導電子状態密度と，強い電子-フォノン結合によるものと考えられる． (Keyword) LaRu 3Si 2 / strong coupling superconductor / NQR / spin-lattice relaxation (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.73.190 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679163484416 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.73.190 (DOI: 10.1143/JPSJ.73.190, CiNii: 1390282679163484416)
26.	Yu Kawasaki, Kenji Ishida, Shinji Kawasaki, Takeshi Mito, Guo-qing Zheng, Yoshio Kitaoka, Christoph Geibel and Frank Steglich : Exotic superconductivity in the coexistent phase of antiferromagnetism and superconductivity in CeCu₂(Si_0.98Ge_0.02)₂ : A Cu-NQR study under hydrostatic pressure, Journal of the Physical Society of Japan, Vol.73, No.1, 194-197, 2004. (Keyword) heavy-fermion superconductivity / quantum critical point / nuclear magnetic resonance / pressure effect / impurity effect (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.73.194 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679163478784 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.73.194 (DOI: 10.1143/JPSJ.73.194, CiNii: 1390282679163478784)
27.	Kenji Ishida, D.E. MacLaughlin, Ben-Li Young, Kaoru Okamoto, Yu Kawasaki, Yoshio Kitaoka, G.J. Nieuwenhuys, R.H. Heffner, O.O. Bernal, Wataru Higemoto, Akihiro Koda, Ryosuke Kadono, O. Trovarelli, C. Geibel and F. Steglich : Low-temperature magnetic order and spin dynamics in YbRh₂Si₂, Physical Review B, Condensed Matter and Materials Physics, Vol.68, No.18, 184401-1-184401-14, 2003. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevB.68.184401 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85038973543 (DOI: 10.1103/PhysRevB.68.184401, Elsevier: Scopus)
28.	Shinji Kawasaki, Takeshi Mito, Yu Kawasaki, Guo-qing Zheng, Yoshio Kitaoka, Dai Aoki, Yoshinori Haga and Yoshichika Onuki : Gapless Magnetic and Quasi-particles Excitations due to the Coexistence of Antiferromagnetism and Superconductivity in CeRhIn₅ : ¹¹⁵In-NQR Study under Pressure, Physical Review Letters, Vol.91, No.13, 137001-1-137001-4, 2003. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevLett.91.137001 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 14525330 ● Summary page in Scopus @ Elsevier: 2-s2.0-0242305007 (DOI: 10.1103/PhysRevLett.91.137001, PubMed: 14525330, Elsevier: Scopus)
29.	Yu Kawasaki, Shinji Kawasaki, Mitsuharu Yashima, Takeshi Mito, Guo-qing Zheng, Yoshio Kitaoka, Hiroaki Shishido, Rikio Settai, Yoshinori Haga and Yoshichika Onuki : Anisotropic Spin Fluctuations in Heavy-Fermion Superconductor CeCoIn₅: In-NQR and Co-NMR studies, Journal of the Physical Society of Japan, Vol.72, No.9, 2308-2311, 2003. (Keyword) heavy fermion / superconductivity / nuclear magnetic resonance (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.72.2308 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204185785472 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.72.2308 (DOI: 10.1143/JPSJ.72.2308, CiNii: 1390001204185785472)
30.	Yutaka Kishimoto, Yu Kawasaki and Takashi Ohno : Mixed Valence State in Ce and Yb Compounds Studied by Magnetic Susceptibility, Physics Letters A, Vol.317, No.3, 308-314, 2003. (Summary) CeRu₃Si₂ の帯磁率 χ を価数揺動物質であるいくつもの Ce 化合物や Yb 化合物と比較し，スピン揺動温度 T_sf を評価した．これらの系で χ T / C が T/ T_sf によくスケールすることから，CeRu₃Si₂ も価数揺動物質であることが改めて確認できた．これらの化合物の間の，低温帯磁率，電子比熱係数および超伝導特性をスピン揺動温度の違いで議論し，局在性の強いものほど低温帯磁率，電子比熱係数が大きく，超伝導になりにくいことについて考察した． (Keyword) CeRu3Si2 / Ce compounds / yb compounds / magnetic susceptibility / mixed valence / c-f hybridization / TERNARY BORIDES / superconductivity / BEHAVIOR / SYSTEMS / CERU2 / RELAXATION / transition / RESONANCE / CERU3SI2 / series (Link to Publication Site) ● Publication site (DOI): 10.1016/j.physleta.2003.08.050 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.physleta.2003.08.050 (DOI: 10.1016/j.physleta.2003.08.050)
31.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Takehiko Hihara, Kenji Sumiyama, Laxmi C. Gupta and Goutam Ghosh : Magnetic susceptibility of CeRu₃Si₂ and a scaling effect in mixed-valence compounds, Physica B : Condensed Matter, Vol.336, No.3, 398-401, 2003. (Summary) 希土類元素 Ce の 4f 電子の遍歴性/局在性の生み出す多彩な現象は，関心を集めている．CeRu₃Si₂ の価数揺動状態を研究するため，8-300 K の温度範囲で帯磁率 χ を測定した．帯磁率は 100 K 以下では，ほぼ一定であるが，それ以上の温度では温度上昇とともに，少し増加する．この温度依存性を，典型的な価数揺動物質 CeSn₃ と比較し，スピン揺動温度 T_sf を求めた．CeRu₃Si₂ は χ T / C が T/ T_sf によくスケールする，典型的な価数揺動物質であることが分かった． (Keyword) CeRu3Si2 / magnetization / magnetic susceptibility / mixed valence / c-f hybridization / SUPERCONDUCTIVITY / CESN3 / BEHAVIOR / SYSTEM (Link to Publication Site) ● Publication site (DOI): 10.1016/S0921-4526(03)00317-X (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1571698601690364800 ● Search Scopus @ Elsevier (DOI): 10.1016/S0921-4526(03)00317-X (DOI: 10.1016/S0921-4526(03)00317-X, CiNii: 1571698601690364800)
32.	Hisashi Kotegawa, Shinji Kawasaki, Atsunobu Harada, Yu Kawasaki, Kaoru Okamoto, Guo-qing Zehng, Yoshio Kitaoka, Y Yamamoto, Yoshinori Haga, Yoshichika Onuki, Kohei M Itoh and E E Haller : Unconventional superconductivity in ferromagnetic UGe₂: a ⁷³Ge nuclear magnetic resonance/nuclear quadrupole resonance study, Journal of Physics: Condensed Matter, Vol.15, No.28, S2043-S2046, 2003. (Link to Publication Site) ● Publication site (DOI): 10.1088/0953-8984/15/28/323 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/0953-8984/15/28/323 (DOI: 10.1088/0953-8984/15/28/323)
33.	Takeshi Mito, Shinji Kawasaki, Yu Kawasaki, Guo-qing Zheng, Yoshio Kitaoka, Dai Aoki, Yoshinori Haga and Yoshichika Onuki : Coexistence of Antiferromagnetism and Superconductivity near the Quantum Criticality of the Heavy-Fermion Compound CeRhIn₅, Physical Review Letters, Vol.90, No.7, 077004-1-077004-4, 2003. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevLett.90.077004 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12633267 ● Summary page in Scopus @ Elsevier: 2-s2.0-0037458450 (DOI: 10.1103/PhysRevLett.90.077004, PubMed: 12633267, Elsevier: Scopus)
34.	Hisashi Kotegawa, Mamoru Yogi, Yoju Imamura, Yu Kawasaki, Guo-qing Zheng, Yoshio Kitaoka, Shuuji Ohsaki, Hitoshi Sugawara, Yuji Aoki and Hideyuki Sato : Evidence for Unconventional Strong-Coupling Superconductivity in PrOs₄Sb₁₂: An Sb Nuclear Quadrupole Resonance Study, Physical Review Letters, Vol.90, No.2, 027001-1-027001-4, 2003. (Summary) We report Sb-NQR results which evidence a heavy-fermion (HF) behavior and an unconventional superconducting (SC) property in Pr(Os4Sb12 with T(c)=1.85 K. The temperature (T) dependence of nuclear-spin-lattice-relaxation rate, 1/T(1), and NQR frequency unravel a low-lying crystal-electric-field splitting below T0 approximately 10 K, associated with Pr3+(4f(2))-derived ground state. In the SC state, 1/T(1) shows neither a coherence peak just below T(c) K nor a T3-like power-law behavior observed for anisotropic HF superconductors with the line-node gap. The isotropic energy gap with its size Delta/k(B)=4.8 K seems to open up across T(c) below T(*) approximately 2.3 K. It is surprising that Pr(Os4Sb12 looks like an isotropic HF superconductor-it may indeed argue for Cooper pairing via quadrupolar fluctuations. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevLett.90.027001 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12570572 ● Summary page in Scopus @ Elsevier: 2-s2.0-0037449477 (DOI: 10.1103/PhysRevLett.90.027001, PubMed: 12570572, Elsevier: Scopus)
35.	Yu Kawasaki, Kenji Ishida, Kei Obinata, Kiyotaka Tabuchi, Kazuyuki Kashima, Yoshio Kitaoka, Octavio Trovarelli, Christoph Geibel and Frank Steglich : Exotic magnetism and superconductivity in Ge-substituted CeCu₂Si₂ : A Cu NQR study, Physical Review B, Condensed Matter and Materials Physics, Vol.66, 224502-1-224502-8, 2002. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0036967572 (Elsevier: Scopus)
36.	Kenji Ishida, Kaoru Okamoto, Yu Kawasaki, Yoshio Kitaoka, Octavio Trovarelli, Christoph Geibel and Frank Steglich : YbRh₂Si₂: Spin fluctuations in the vicinity of a quantum critical point at low magnetic field, Physical Review Letters, Vol.89, No.10, 107202-1-107202-4, 2002. (Link to Publication Site) ● Publication site (DOI): 10.1103/PhysRevLett.89.107202 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12225219 ● Summary page in Scopus @ Elsevier: 2-s2.0-0037009613 (DOI: 10.1103/PhysRevLett.89.107202, PubMed: 12225219, Elsevier: Scopus)
37.	Shinji Kawasaki, Takeshi Mito, Yu Kawasaki, Guo-qing Zheng, Yoshio Kitaoka, Hiroaki Shishido, Shingo Araki, Rikio Settai and Yoshichika Onuki : ¹¹⁵In-NQR evidence for unconventional superconductivity in CeIn₃ under pressure, Physical Review B, Condensed Matter and Materials Physics, Vol.66, 54521-1-54521-4, 2002. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0036696110 (Elsevier: Scopus)
38.	Akihiro Koda, Wataru Higemoto, Ryosuke Kadono, Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka, Christoph Geibel and Frank Steglich : Evidence for the Coexistence of Superconductivity and the Magnetic A-Phase in CeCu₂Si₂ Proved by Muon Knight Shift, Journal of the Physical Society of Japan, Vol.71, No.6, 1427-1430, 2002. (Keyword) CeCu 2 Si 2 / heavy fermion / superconductivity / magnetism / μSR (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.71.1427 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679159977728 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.71.1427 (DOI: 10.1143/JPSJ.71.1427, CiNii: 1390282679159977728)
39.	Wataru Higemoto, Akihiro Koda, Ryosuke Kadono, Yu Kawasaki, Yoshinori Haga, Dai Aoki, Rikio Settai, Hiroaki Shishido and Yoshichika Onuki : μSR Studies on Heavy Fermion Superconductors CeIrIn₅ and CeCoIn₅, Journal of the Physical Society of Japan, Vol.71, No.4, 1023-1026, 2002. (Keyword) CeIrIn 5 / CeCoIn 5 / heavy fermion superconductor / μSR (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.71.1023 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1523951030658353920 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.71.1023 (DOI: 10.1143/JPSJ.71.1023, CiNii: 1523951030658353920)
40.	Ryosuke Kadono, Wataru Higemoto, Akihiro Koda, Yu Kawasaki, Masashi Hanawa and Zenji Hiroi : Quasiparticle Excitation in the Superconducting Pyrochlore Cd₂Re₂O₇ Probed by Muon Spin Rotation, Journal of the Physical Society of Japan, Vol.71, No.3, 709-712, 2002. (Keyword) superconductivity / penetration depth / pyrochlore / μSR (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.71.709 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204184334848 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.71.709 (DOI: 10.1143/JPSJ.71.709, CiNii: 1390001204184334848)
41.	Shinji Kawasaki, Takeshi Mito, Guo-qing Zheng, Christophe Thessieu, Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka, Takaki Muramatsu, Tatsuo Kobayashi, Dai Aoki, Shingo Araki, Yoshinori Haga, Rikio Settai and Yoshichika Onuki : Pressure-temperature phase diagram of antiferromagnetism and superconductivity in CeRhIn₅ and CeIn₃: ¹¹⁵In-NQR study under pressure, Physical Review B, Condensed Matter and Materials Physics, Vol.65, R20504-1-R20504-4, 2002. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-17344388517 (Elsevier: Scopus)
42.	Takeshi Mito, Shinji Kawasaki, Guo-qing Zheng, Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka, Dai Aoki, Yoshinori Haga and Yoshichika Onuki : Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn₅: ¹¹⁵In-NQR study under pressure, Physical Review B, Condensed Matter and Materials Physics, Vol.63, R220507-1-R220507-4, 2001. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0034896327 (Elsevier: Scopus)
43.	Yu Kawasaki, Kenji Ishida, Takeshi Mito, Christophe Thessieu, Guo-qing Zheng, Yoshio Kitaoka, Christoph Geibel and Frank Steglich : Exotic superconducting phase in CeCu₂Si₂ close to antiferromagnetism: A Cu-NQR study under hydrostatic pressure, Physical Review B, Condensed Matter and Materials Physics, Vol.63, R14501-1-R14501-4, 2001.
44.	Yoshio Kitaoka, Kenji Ishida, Yu Kawasaki, Octavio Trovarelli, Christoph Geibel and Frank Steglich : Coexistence of superconductivity and antiferromagnetism in the heavy-fermion superconductor CeCu₂(Si_1-xGe_x)₂ probed by means of Cu nuclear quadrupole resonance : a test case for the SO(5) theory, Journal of Physics: Condensed Matter, Vol.13, No.4, 79-88, 2001. (Link to Publication Site) ● Publication site (DOI): 10.1088/0953-8984/13/4/103 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0035136740 (DOI: 10.1088/0953-8984/13/4/103, Elsevier: Scopus)
45.	Kenji Ishida, Yu Kawasaki, Kiyotaka Tabuchi, Kazuyuki Kashima, Yoshio Kitaoka, Kunisuke Asayama, Christoph Geibel and Frank Steglich : Evolution from magnetism to unconventional superconductivity in a series of Ce_xCu₂Si₂ compounds probed by Cu NQR, Physical Review Letters, Vol.82, No.26, 5353-5356, 1999.
46.	Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka and Kunisuke Asayama : Si-NMR study of antiferromagnetic heavy-fermion compounds CePd₂Si₂ and CeRh₂Si₂, Physical Review B, Condensed Matter and Materials Physics, Vol.58, No.13, 8634-8639, 1998.
47.	Kenji Ishida, Yu Kawasaki, Yoshio Kitaoka, Kunisuke Asayama, Hiroyuki Nakamura and Jacque Flouquet : Ru NMR and NQR probes of the metamagnetic transition in CeRu₂Si₂, Physical Review B, Condensed Matter and Materials Physics, Vol.57, No.18, R11054-R11057, 1998.

Review, Commentary:

1.	Takashi Ohno, Yu Kawasaki, Yutaka Ueda and Tomohiko Nakajima : ペロブスカイトマンガン酸化物LaBaMn₂O₆の核磁気共鳴, 固体物理, Vol.42, 37-44, Jan. 2007.
2.	Yoshio Kitaoka, Shinji Kawasaki, Takeshi Mito and Yu Kawasaki : Unconventional Superconductivity in Heavy-Fermion Systems, Journal of the Physical Society of Japan, Vol.74, No.1, 186-199, Jan. 2005. (Keyword) Kondo lattice / heavy-fermion superconductivity / pressure-induced phase transition / quantum critical point / NQR (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJ.74.186 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679163828736 ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJ.74.186 (DOI: 10.1143/JPSJ.74.186, CiNii: 1390282679163828736)

Proceeding of International Conference:

1.	Ko-ichi Magishi, Sugiura Hikaru, Akihiko Hisada, Yu Kawasaki and Kuwai Tomohiko : NMR study of Si-substitution effect for Al inPrTi₂Al₂₀, International Conference on Hyperfine Interactions and their Applications (HYPERFINE2023), HYPERFINE2023, Nara, Nov. 2023.
2.	Ko-ichi Magishi, Mori Hiro, Sugiura Hikaru, Akihiko Hisada, Yu Kawasaki, Lei Qiankun, Matsumoto Yuki, Namiki Takahiro and Nishimura Katsuhiko : NMR Study of Caged Compounds TmTr2Al20 (Tr = Ti, V), JPS Conf.Proc., Vol.38, 011107-1-011107-6, Mar. 2023.
3.	Yu Kawasaki, Hiro Mori, Yutaka Kishimoto, Ko-ichi Magishi, Koichi Nakamura, Zhangzhen He and Mitsuru Itoh : NMR Study of Magnetic Structure and Spin Dynamics in α-CoV2O6, JPS Conf.Proc., Vol.38, 011118-1-011118-6, Mar. 2023. (Link to Publication Site) ● Publication site (DOI): 10.7566/JPSCP.38.011118 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.7566/JPSCP.38.011118 (DOI: 10.7566/JPSCP.38.011118)
4.	Ko-ichi Magishi, Sugiura Hikaru, Akihiko Hisada, Yu Kawasaki, Lei Qiankun, Matsumoto Yuki, Namiki Takahiro and Nishimura Katsuhiko : NMR Study of Caged Compounds TmTr2Al20 (Tr = Ti, V), JPS Conf.Proc., Vol.38, 011107-1-011107-6, Sapporo, Aug. 2022.
5.	Asahi Nojirino, Masaya Aki, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, Yusuke Nakai, Takeshi Mito, Mitsuharu Yashima, Hidekazu Mukuda, Hisashi Kotegawa and Hitoshi Sugawara : Electronic State of V3Si Probed by 29Si NMR, JPS Conf.Proc., Vol.30, 011050-1-011050-6, Mar. 2020. (Link to Publication Site) ● Publication site (DOI): 10.7566/jpscp.30.011050 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1362257545145568128 ● Search Scopus @ Elsevier (DOI): 10.7566/jpscp.30.011050 (DOI: 10.7566/jpscp.30.011050, CiNii: 1362257545145568128)
6.	Yu Kawasaki, Mori Hiro, Kishimoto Yutaka, Nakamura Koichi, He Zhangzhen and Itoh Mitsuru : NMR Study of Magnetic Structure in α-CoV2O6, JPS Conf.Proc., Vol.30, 011088-1-011088-6, Mar. 2020. (Link to Publication Site) ● Publication site (DOI): 10.7566/jpscp.30.011088 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1364227869982548480 ● Search Scopus @ Elsevier (DOI): 10.7566/jpscp.30.011088 (DOI: 10.7566/jpscp.30.011088, CiNii: 1364227869982548480)
7.	Deguchi Tomoko, Yu Kawasaki, Yutaka Kishimoto, Nakamura Koichi, Nakai Yusuke, Mito Takeshi, Haque Zeba, Gupta Chand Laxmi and Ganguli Kumar Ashok : NMR Study of Layered Eu-based Bismuth-Sulfide EuFBiS2, JPS Conf.Proc., Vol.30, 011060-1-011060-6, Mar. 2020. (Link to Publication Site) ● Publication site (DOI): 10.7566/JPSCP.30.011060 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.7566/JPSCP.30.011060 (DOI: 10.7566/JPSCP.30.011060)
8.	Yu Kawasaki, Ryo MORIOKA, Yutaka Kishimoto, Koichi Nakamura, Kohei NISHIYAMA, Takehide KOYAMA, Takeshi MITO, Takuyuki BABA, Toru YAMAUCHI, Masahiko ISOBE and Yutaka UEDA : ⁵¹V-NMR study of charge order induced by cation order in -Ag_2/3V₂O₅, The International Conference on Strongly Correlated Electron Systems, Hangzhou,China, May 2016.
9.	Yu Kawasaki, Ryo MORIOKA, Yutaka Kishimoto, Koichi Nakamura, Kohei NISHIYAMA, Takehide KOYAMA, Takeshi MITO, Masahiko ISOBE and Yutaka UEDA : ⁵¹V-NMR study of low-temperature phase in δ-Ag_2/3V₂O₅, Journal of Physics: Conference Series, Vol.592, 012042-1-012042-6, Mar. 2015. (Link to Publication Site) ● Publication site (DOI): 10.1088/1742-6596/592/1/012042 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/1742-6596/592/1/012042 (DOI: 10.1088/1742-6596/592/1/012042)
10.	Yu Kawasaki, Y. Ideta, Yutaka Kishimoto, T. Ohno, K. Omura, T. Fujita, S. Kimura and M. Hagiwara : Antiferromagnetic State in the Quasi-one-dimensional BaCo₂V₂O₈: ⁵¹V-NMR Study on a Single Crystal, JPS Conf.Proc., Vol.3, 014001-1-014001-6, Jun. 2014. (Link to Publication Site) ● Publication site (DOI): 10.7566/JPSCP.3.014001 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.7566/JPSCP.3.014001 (DOI: 10.7566/JPSCP.3.014001)
11.	Yukiichi Ideta, Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, Yoshitaka Michihiro, Zhangzhen He, Yutaka Ueda and Mitsuru Itoh : 51V-NMR study of the quasi-one-dimensional antiferromagnet BaCo2V2O8, The Journal of the Korean Physical Society, Vol.63, No.3, 739-742, Aug. 2013. (Link to Publication Site) ● Publication site (DOI): 10.3938/jkps.63.739 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84882961249 (DOI: 10.3938/jkps.63.739, Elsevier: Scopus)
12.	Yu Kawasaki, Syota Takase, Yutaka Kishimoto, Takashi Ohno, Ikuya Yamada, Kentaro Shiro, Ryoji Takahashi, Kenya Ohgushi, Norimasa Nishiyama, Toru Inoue and Tetsuo Irifune : NMR study of successive magnetic transitions in A-site ordered perovskite LaMn3Cr4O12, The Journal of the Korean Physical Society, Vol.63, No.3, 640-643, Busan, Aug. 2013. (Link to Publication Site) ● Publication site (DOI): 10.3938/jkps.63.640 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84882986822 (DOI: 10.3938/jkps.63.640, Elsevier: Scopus)
13.	Yu Kawasaki, Yukiichi Ideta, Yutaka Kishimoto, Takashi Ohno, Kumiko Omura, Takahito Fujita, Syojiro Kimura and Masayuki Hagiwara : 51V-NMR study of the quasi-one-dimensional antiferromagnet BaCo2V2O8, The International Conference on Strongly Correlated Electron Systems 2013, Tokyo, Aug. 2013.
14.	Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, A. Koda, K.H. Satoh, R. Kadono, J.L. Gavilano, H. Luetkens, T. Nakajima and Y. Ueda : muSR study of A-site ordered perovskite manganite LaBaMn₂O₆, The International Conference on Strongly Correlated Electron Systems, Cambridge, Aug. 2011.
15.	Yu Kawasaki, Jorge L. Gavilano, Lukas Keller, Jürg Schefer, Niels Bech_Christensen, Alex Amato, Takashi Ohno, Yutaka Kishimoto, Zhangzhen He, Yutaka Ueda and Mitsuru Itoh : Magnetic structure and spin dynamics of the quasi-one-dimensional spin-chain antiferromagnet BaCo₂V₂O₈, The International Conference on Strongly Correlated Electron Systems, Cambridge, Aug. 2011.
16.	Yu Kawasaki, Yutaka Kishimoto, Tetsu Tanaka, Takashi Ohno, Seiji Niitaka, Naoyuki Katayama and Hidenori Takagi : NMR study of magnetic excitation in LiVX₂ (X = O,S), Journal of Physics: Conference Series, Vol.320, No.1, 012028, Sendai, Japan, Jan. 2011. (Link to Publication Site) ● Publication site (DOI): 10.1088/1742-6596/320/1/012028 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-81055125384 (DOI: 10.1088/1742-6596/320/1/012028, Elsevier: Scopus)
17.	Yutaka Kishimoto, Yu Kawasaki, M. Tanabe, Y. Ideta, Takashi Ohno, G. Ghosh, A.K. Tyagi and L.C. Gupta : ¹¹B NMR Relaxation in Superconductors YRuB₂ and LuRuB₂, The Journal of Physics and Chemistry of Solids, Vol.69, No.12, 3153-3155, Sendai, Dec. 2008. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpcs.2008.06.030 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jpcs.2008.06.030 (DOI: 10.1016/j.jpcs.2008.06.030)
18.	T. Tanaka, Yu Kawasaki, Y. Takagishi, Y. Ideta, Yutaka Kishimoto, Takashi Ohno, N. Katayama, M. Nohara and H. Takagi : ⁷Li and ⁵¹V NMR Study of LiVS₂, The Journal of Physics and Chemistry of Solids, Vol.69, No.12, 3142-3145, Sendai, Dec. 2008.
19.	Yu Kawasaki, J.L. Gavilano, B. Roessli, D. Andreica, Ch. Baines, E. Pomjakushina, K. Conder and H.R. Ott : mSR studies of CePd₂In at low temperatures, The Journal of Physics and Chemistry of Solids, Vol.69, No.12, 3149-3152, Sendai, Dec. 2008. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpcs.2008.06.046 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jpcs.2008.06.046 (DOI: 10.1016/j.jpcs.2008.06.046)
20.	Yu Kawasaki, J.L. Gavilano, B. Roessli, D. Andreica, Ch. Baines, E. Pomjakushina, K. Conder and H.R. Ott : muSR studies of CePd₂In at low temperatures, SNS(Spectroscopies in Novel Superconductors)2007, Sendai, Japan, Aug. 2007.
21.	Takashi Ohno, Yu Kawasaki, Yoshikazu Takagishi, Yutaka Kishimoto, S. Yamazaki, H. Ueda and Yutaka Ueda : ⁵¹V NMR Study of V₄O₉, SNS(Spectroscopies in Novel Superconductors)2007, Sendai, Japan, Aug. 2007. (Keyword) Vanadium oxides / Spin ladder system / NMR
22.	Yutaka Kishimoto, Yu Kawasaki, Masayoshi Tanabe, Yukiichi Ideta, Takashi Ohno, G. Ghosh, A. K. Tyagi and L. C. Gupta : ¹¹B NMR Relaxation in Superconductors YRuB₂ and LuRuB₂, SNS(Spectroscopies in Novel Superconductors)2007, Sendai, Japan, Aug. 2007. (Keyword) Superconductivity / Magnetism / NMR / YRuB₂ / LuRuB₂
23.	Tetsu Tanaka, Yu Kawasaki, Yoshikazu Takagishi, Yukiichi Ideta, Yutaka Kishimoto, Takashi Ohno, Naoyuki Katayama, Minoru Nohara and Hidenori Takagi : ⁷Li and ⁵¹V NMR Spectra of Li_xVS₂, SNS(Spectroscopies in Novel Superconductors)2007, Sendai, Japan, Aug. 2007. (Keyword) Li_xVS₂ / Spin trimer / NMR
24.	Yu Kawasaki, T. Tanaka, M. Izumi, Yutaka Kishimoto, Takashi Ohno, H. Tou, H. Inaoka, M. Sera, K. Shigetoh and T. Takabatake : Sb-NMR/NQR Study of CeIrSb, The Journal of Physics and Chemistry of Solids, Vol.68, 2195-2198, Tokyo, Japan, Aug. 2007.
25.	J.L. Gavilano, Yu Kawasaki, L. Keller, B. Roessli, N. Christensen, J. Schefer, Takashi Ohno, Z. He, Y. Ueda and M. Itoh : Neutron Scattering Studies of BaCo2V2O8, European conference on Neutron Scattering, Lund, Sweden, Jun. 2007.
26.	Takashi Ohno, Yu Kawasaki, Takeshi Minami, Yoshikazu Takagishi, Yutaka Kishimoto, Tomohiko Nakajima and Yutaka Ueda : Temperature dependence of ⁵⁵Mn NMR Spectrum in La_0.5Ba_0.5MnO₃, Journal of Magnetism and Magnetic Materials, Vol.310, No.2, e195-e196, Mar. 2007. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmmm.2006.10.200 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmmm.2006.10.200 (DOI: 10.1016/j.jmmm.2006.10.200)
27.	Yutaka Kishimoto, Yu Kawasaki, Masayoshi Tanabe, Tetsu Tanaka, Takashi Ohno, G. Ghosh, A. K. Tyagi and L. C. Gupta : ¹¹B NMR Study of Superconductivity in YRuB₂ and LuRuB₂, Journal of Magnetism and Magnetic Materials, Vol.310, No.2, 581-583, Mar. 2007. (Keyword) YRuB₂ / LuRuB₂ / Superconductivity / Knight shift / Spin-lattice relaxation (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmmm.2006.10.156 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmmm.2006.10.156 (DOI: 10.1016/j.jmmm.2006.10.156)
28.	Yu Kawasaki, Takeshi Minami, Masatomo Fujishima, Yutaka Kishimoto, Takashi Ohno, Kazuko Zenmyo, Hidenori Kubo, Tomohiko Nakajima and Yutaka Ueda : Ground State Properties of the A-site ordered/disordered manganites LaBaMn₂O₆/La_0.5Ba_0.5MnO₃ probed by NMR, Physica B : Condensed Matter, Vol.378-380, 525-526, May 2006.
29.	Takashi Ohno, Hidenori Kubo, Yu Kawasaki, Yutaka Kishimoto, Tomohiko Nakajima and Yutaka Ueda : ⁵⁵Mn NMR Spectrum at the Ground State in the A-site ordered RBaMn₂O₆, Physica B : Condensed Matter, Vol.359-361, 1291-1293, Jul. 2005. (Summary) A サイト秩序型ペロブスカイト Mn 酸化物 YBaMn/_{2}O/_{6} および LaBaMn/_{2}O/_{6} において /^{55}Mn NMR を初めて測定した．A サイト無秩序型において報告されているスペクトルより，巾の狭いピークが観測され，それぞれの基底状態と結びつけて考察した．
30.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Dexin X. Li, Yoshiya Homma and Yoshinobu Siokawa : La-NQR Study of Superconductivity in La₃Ir₂Ge₂, Physica B : Condensed Matter, Vol.359-361, 503-505, Jul. 2005. (Summary) La₃Ir₂Ge₂の電子状態を研究するため，¹³⁹La-NQR測定を行った．常伝導状態では，スピン-格子緩和率は温度に比例し，La₃Ir₂Ge₂は単純金属であると結論できる．一方，超伝導転移温度(4.7K)直下ではスピン-格子緩和率は小さなコヒーレンスピークを示し，その温度依存性はBCS型の関数でフィットできる，これらのことより，La₃Ir₂Ge₂は従来型のBCS超伝導体であることが明らかになった． (Keyword) La₃Ir₂Ge₂ / superconductivity / NQR(核四重極共鳴) / スピン-格子緩和率 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.physb.2005.01.128 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.physb.2005.01.128 (DOI: 10.1016/j.physb.2005.01.128)
31.	Y. Kitaoka, S. Kawasaki, M. Yashima, A. Harada, H. Kotegawa, Yu Kawasaki, T. Mito and G.-q. Zheng : NMR experiments on heavy-fermion systems and superconductors, Physica B : Condensed Matter, Vol.359-361, 341-348, Karlsruhe, Germany, Apr. 2005.
32.	M. Yashima, S. Kawasaki, Yu Kawasaki, G.-q. Zheng, Y. Kitaka, H. Shishido, R. Settai, Y. Haga and Y. Onuki : Unconventional superconductivity near the antiferromagnetic criticality in CeCoIn₅: a study of ¹¹⁵In-NQR under pressure, Physica B : Condensed Matter, Vol.359-361, 404-406, Apr. 2005.
33.	S. Kawasaki, T. Mito, Yu Kawasaki, H. Kotegawa, G.-q. Zheng, Y. Kitaoka, H. Shishido, S. Araki, R. Settai and Y. Onuki : ¹¹⁵In-NQR study of antiferromagnetism and superconductivity near magnetic criticality in CeIn₃, Physica B : Condensed Matter, Vol.359-361, 413-415, Apr. 2005.
34.	A. Harada, H. Kotegawa, S. Kawasaki, Yu Kawasaki, G.-q. Zheng, Y. Kitaoka, E. Yamamoto, Y. Haga, Y. Onuki, K.M. Itoh and E.E. Haller : The microscopic coexistence of superconductivity and ferromagnetism in UGe₂: ⁷³Ge-NMR/NQR study, Physica B : Condensed Matter, Vol.359-361, 1057-1059, Apr. 2005.
35.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Laxmi C Gupta and Goutam Ghosh : ¹³⁹La NQR Relaxation in Superconductor LaRu₃Si₂, Journal of Magnetism and Magnetic Materials, Vol.272-276, No.1, 507-508, May 2004. (Summary) LaRu₃Si₂ の超伝導特性を解明する為，¹³⁹La NQR 測定を行った．1/T₁ は T_c 直下でコヒーレンスピークを示し，温度低下とともに，低温では指数関数的に減少するため，LaRu₃Si₂ は BCS 超伝導体であると考えられる．エネルギーギャップは，2Δ/k_BT_c=5.5 と大きな値をもつことが分かった． (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmmm.2003.11.215 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmmm.2003.11.215 (DOI: 10.1016/j.jmmm.2003.11.215)
36.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Takehiko Hihara, Kenji Sumiyama, Laxmi C Gupta and Goutam Ghosh : Spin fluctuation temperatures in mixed valence materials studied by magnetic Susceptibility, Journal of Magnetism and Magnetic Materials, Vol.272-276, 509-510, May 2004. (Summary) 価数揺動物質 CeRu₃Si₂ の帯磁率を測定し，スピン揺動温度を求め，他の価数揺動物質と比較し，価数揺動物質が系の磁性および超伝導に及ぼす影響について議論した． (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmmm.2003.12.614 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmmm.2003.12.614 (DOI: 10.1016/j.jmmm.2003.12.614)
37.	Hisashi Kotegawa, Shinji Kawasaki, Atsuyuki Harada, Yu Kawasaki, Kaoru Okamoto, Guo-qing Zheng, Yoshio Kitaoka, E Yamamoto, Yoshinori Haga, Yoshichika Onuki, Kohei M Itoh and E E Haller : The microscopic coexistence of superconductivity and ferromagnetism in UGe₂: ⁷³Ge-NMR/NQR study, Journal of Magnetism and Magnetic Materials, Vol.272-276, 27-28, May 2004. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmmm.2003.12.410 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmmm.2003.12.410 (DOI: 10.1016/j.jmmm.2003.12.410)
38.	Mitsuharu Yashima, Shinji Kawasaki, Yu Kawasaki, Guo-qing Zheng, Yoshio Kitaoka, Hiroaki Shishido, Rikio Settai and Yoshichika Onuki : Unconventional superconductivity and antiferromagnetic spin fluctuations in the heavy fermion compound CeCoIn₅: ¹¹⁵In-NQR study under pressure, Journal of Magnetism and Magnetic Materials, Vol.272-276, 679-681, May 2004. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmmm.2003.11.335 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmmm.2003.11.335 (DOI: 10.1016/j.jmmm.2003.11.335)
39.	Shinji Kawasaki, Takeshi Mito, Yu Kawasaki, Guo-qing Zheng, Yoshio Kitaoka, Dai Aoki, Yoshinori Haga and Yoshichika Onuki : Magnetism and superconductivity near the quantum criticality in CeRhIn₅: ¹¹⁵In-NMR study under pressure, Journal of Magnetism and Magnetic Materials, Vol.272-276, 19-20, Roma, May 2004. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmmm.2003.11.122 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmmm.2003.11.122 (DOI: 10.1016/j.jmmm.2003.11.122)
40.	Shinji Kawasaki, Yu Kawasaki, Takeshi Mito, Guo-qing Zheng, Yoshio Kitaoka, Shingo Araki, Rikio Settai and Yoshichika Onuki : Unconventional superconductivity in CeIn₃: ¹¹⁵In-NQR study under pressure, Physica C: Superconductivity, Vol.388-389, 541-542, Hiroshima, May 2003. (Summary) In-NQR測定により，2.65GPaの圧力下におけるCeIn₃の超伝導特性を調べた．核スピン格子緩和率および交流帯磁率の結果は，95mKでの超伝導転移を示す．また，核スピン格子緩和率は超伝導転移温度直下でコヒーレンスピークを示さないことが分かり，この結果はこの超伝導が非BCS型であることを示唆する．
41.	Takashi Ohno, Yutaka Kishimoto, Yu Kawasaki, Yasuhisa Ushida, Yoshiya Homma, Takashi Nishioka and Masaaki Kontani : Non-Fermi-liquid behavior in amorphous UPd₂Al₃, Physica B : Condensed Matter, Vol.329-333, 561-563, Hiroshima, May 2003. (Summary) 強相関電子系における主要研究課題の一つである，非フェルミ液体状態と無秩序状態の関連性を研究するため，非晶質UPd₂Al₃ を作製した．低温で測定された電子比熱係数は非フェルミ液体状態の挙動のひとつである，対数的な温度依存性を示す事がわかった．
42.	Kenji Ishida, Kaoru Okamoto, Yu Kawasaki, Yoshio Kitaoka, Octavio Trovarelli, Christoph Geibel and Frank Steglich : muSR and low-temperature antiferromagnetism in the ordered non-Fermi-liquid compound YbRh₂Si₂, Physica B : Condensed Matter, Vol.329-333, 589-590, Hiroshima, May 2003.
43.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Takehiko Hihara, Kenji Sumiyama, Laxmi C. Gupta and Gutam Ghosh : Magnetic susceptibility of LaRu₃Si₂, Physica B : Condensed Matter, Vol.329-333, 495-496, Hiroshima, May 2003. (Summary) 希土類の三元化合物 CeRu₃Si₂ の基準物質として重要である，LaRu₃Si₂ の電子状態を解明する為，常伝導状態において，帯磁率を測定した．不純物の寄与を引き算後の，試料本来の帯磁率は温度依存性を持つことが分かった．これはフェルミ面近傍の伝導電子状態密度に鋭いピークがあるためと考えられ，LaRu₃Si₂ の比較的高い超伝導転移温度 T_c =6.5 K にも関係があるものと考えられる．
44.	Shinji Kawasaki, Takeshi Mito, Guo-qing Zheng, Yu Kawasaki, Dai Aoki, Yoshinori Haga and Yoshichika Onuki : Magnetic Properties of CeRhIn₅ under pressure probed by ¹¹⁵In-NQR, Acta Physica Polonica B, Vol.34, No.2, 419-422, Cracow, Feb. 2003.
45.	Yoshio Kitaoka, Yu Kawasaki, Takeshi Mito, Shinji Kawasaki, Guo-qing Zheng, Kenji Ishida, Dai Aoki, Yoshinori Haga, Rikio Settai, Yoshichika Onuki, Christoph Geibel and Frank Steglich : Coexistence of antiferromagnetism and superconductivity in heavy-fermion systems, The Journal of Physics and Chemistry of Solids, Vol.63, No.6-8, 1141-1146, Tokyo, Japan, Jun. 2002. (Link to Publication Site) ● Publication site (DOI): 10.1016/S0022-3697(02)00133-6 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0036602736 (DOI: 10.1016/S0022-3697(02)00133-6, Elsevier: Scopus)
46.	Shinji Kawasaki, Takeshi Mito, Guo-qing Zheng, Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka, Dai Aoki, Yoshinori Haga and Yoshichika Onuki : Evolution of the Magnetism and Superconductivity in CeRhIn₅ under pressure: ¹¹⁵In-NQR study, Journal of the Physical Society of Japan, Vol.71, No.suppl, 282-284, Sendai, Japan, Mar. 2002. (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJS.71S.282 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJS.71S.282 (DOI: 10.1143/JPSJS.71S.282)
47.	Yu Kawasaki, Kenji Ishida, Kei Obinata, Kiyotaka Tabuchi, Kazuyuki Kashima, Yoshio Kitaoka, Octavio Trovarelli, Christoph Geibel and Frank Steglich : Magnetism and superconductivity on the border of magnetic phase: Cu-NQR study of Ge-substituted CeCu₂Si₂, Journal of the Physical Society of Japan, Vol.71, No.suppl, 270-272, Sendai, Japan, Mar. 2002. (Link to Publication Site) ● Publication site (DOI): 10.1143/JPSJS.71S.270 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1143/JPSJS.71S.270 (DOI: 10.1143/JPSJS.71S.270)
48.	Takeshi Mito, Shinji Kawasaki, Guo-qing Zheng, Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka, Dai Aoki, Yoshinori Haga and Yoshichika Onuki : Systematic NQR study of the pressure-induced transition from antiferromagnetic to superconducting state in CeRhIn₅, Physica B : Condensed Matter, Vol.312-313, 16-18, Ann Arbor, USA, Mar. 2002.
49.	Yu Kawasaki, Kenji Ishida, Kei Obinata, Takeshi Mito, Guo-qing Zheng, Yoshio Kitaoka, Christoph Geibel and Frank Steglich : Cu-NQR study of CeCu₂(Si_0.98Ge_0.02)₂ under hydrostatic pressure, Physica B : Condensed Matter, Vol.312-313, 428-430, Ann Arbor, USA, Mar. 2002.
50.	Yu Kawasaki, Kenji Ishida, Kei Obinata, Kiyotaka Tabuchi, Kazuyuki Kashima, Yoshio Kitaoka, Octavio Trovarelli, Christoph Geibel and Frank Steglich : Magnetism and Superconductivity in CeCu₂(Si_1-xGe_x)₂ Probed by Cu NQR, Hyperfine Interactions, Vol.133, 163-167, Rio de Janeiro, Brazil, Oct. 2001. (Summary) 重い電子系超伝導体CeCu₂(Si_1-xGe_x)₂の磁気的性質をCu-NQRにより調べた．Ge原子による置換量の増加につれ，系の磁気秩序は動的なものから静的なものに変化し，x>0.25においてはCeCu₂Ge₂で見られるような局在的な磁気秩序に変化することが分かった．
51.	Yu Kawasaki, Kei Obinata, Kenji Ishida, Takeshi Mito, Guo-qing Zheng, Yoshio Kitaoka, Christoph Geibel and Frank Steglich : Exotic magnetic and superconducting phases in CeCu₂Si₂ close to magnetically ordered state: Cu-NQR study, Journal of Magnetism and Magnetic Materials, Vol.226-230, 374-375, Recife, Brazil, May 2001. (Link to Publication Site) ● Publication site (DOI): 10.1016/S0304-8853(00)01341-X (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/S0304-8853(00)01341-X (DOI: 10.1016/S0304-8853(00)01341-X)
52.	Yu Kawasaki, Kenji Ishida, Kei Obinata, Takeshi Mito, Guo-qing Zheng, Yoshio Kitaoka, Christoph Geibel and Frank Steglich : Exotic magnetic and superconducting phases in CeCu₂Si₂ close to magnetically ordered state: Cu-NQR study, International Symposium on New Developments in Strongly Correlated Electron Phase under Mulitple Environment, Osaka, Japan, Nov. 2000.
53.	Kenji Ishida, Yu Kawasaki, Takeshi Mito, Christophe Thessieu, Guo-qing Zheng, Yoshio Kitaoka, Christoph Geibel and Frank Steglich : Cu-NQR study of magnetism and superconductivity in Ce_1+xCu_2+ySi₂ under pressure, Hyperfine Interactions, Vol.128, 193-204, Cologne, Germany, Oct. 2000.
54.	Yu Kawasaki, Kenji Ishida, Christophe Thessieu, Takeshi Mito, Guo-qing Zheng, Yoshio Kitaoka, Christoph Geibel and Frank Steglich : Cu-NQR study of magnetism and superconductivity in Ce_1+xCu_2+ySi₂ under pressure, International Conference of European Physical Society, condensed matter division, Montreux, Switzerland, Mar. 2000.
55.	Christophe Thessieu, Kenji Ishida, Shinji Kawasaki, Takeshi Mito, Yu Kawasaki, Guo-qing Zheng, Yoshio Kitaoka and Yoshichika Onuki : In-NQR study of CeIn₃ under pressure, Physica B : Condensed Matter, Vol.281-282, 9-11, Nagano, Japan, Jan. 2000.
56.	Hidehiko Okura, Kenji Ishida, Yu Kawasaki, Yoshio Kitaoka, Yoshiyuki Yamamoto, Yoshihito Miyako, Tadashi Fukuhara and Kunihiko Maezawa : Ru NQR studies in La and Ge-doped CeRu₂Si₂, Physica B : Condensed Matter, Vol.281-282, 61-63, Nagano, Japan, Jan. 2000.
57.	Yu Kawasaki, Kenji Ishida, Takeshi Mito, Christophe Thessieu, Guo-qing Zheng, Yoshio Kitaoka, Kunisuke Asayama, Christoph Geibel and Frank Steglich : Cu-NQR study of magnetism and superconductivity in Ce_1+xCu_2+ySi₂ under pressure, Physica B : Condensed Matter, Vol.281-282, 14-15, Nagano, Japan, Jan. 2000.
58.	Kenji Ishida, Yoshio Kitaoka, Yu Kawasaki, Kiyotaka Tabuchi, Kazuyuki Kashima, Kunisuke Asayama, Christophe Geibel and Frank Steglich : Evolution from magnetically ordered to unconventional superconducting phase in a series of Ce_xCu₂Si₂ compounds: Cu-NQR study, Physics of Strongly Correlated Electron Systems; JJAP Series, Vol.11, 35-37, Tokyo, Feb. 1999.
59.	Kenji Ishida, Yu Kawasaki, Yoshio Kitaoka, Kunisuke Asayama, Hiroyuki Nakamura and Jacque Flouquet : Ru-NQR and NMR study of metamagnetic transition in CeRu₂Si₂, Physics of Strongly Correlated Electron Systems; JJAP Series, Vol.11, 12-14, Tokyo, Feb. 1999.
60.	Kenji Ishida, Yu Kawasaki, Kiyotaka Tabuchi, Kazuyuki Kashima, Yoshio Kitaoka, Kunisuke Asayama, Christoph Geibel and Frank Steglich : Crossover behavior from magnetism to superconductivity in Ce_xCu₂Si₂, Physica B : Condensed Matter, Vol.259-261, 678-680, Paris, France, Jan. 1999.
61.	Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka, Kunisuke Asayama, Hiroyuki Nakamura and Jacque Flouquet : Ru-NMR study of pseudo-metamagnetic transition in CeRu₂Si₂, Physica B : Condensed Matter, Vol.259-261, 77-78, Paris, France, Jan. 1999.
62.	Makoto Imada, Masanori Tsunekawa, Takenori Iwasaki, Shigemasa Suga, Yoshichika Onuki, Fumitoshi Iga, Mitsuo Kasaya, Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka and Kunisuke Asayama : Photoemission of CeX₂Y₂ and Ce(Pd_1-xCu_x)₃, Journal of Magnetism and Magnetic Materials, Vol.177-181, 387-388, Cairns, Australia, Jan. 1998.

Proceeding of Domestic Conference:

1.	佐々木亮太, Ko-ichi Magishi, Akihiko Hisada, Yu Kawasaki and 桑井智彦 : 磁場に鈍感な相転移を示す SmNb₂Al₂₀ の NMR による研究, 2024年度応用物理・物理系学会中国四国支部合同学術講演会講演予稿集, 119, Jul. 2024.
2.	Ko-ichi Magishi, Akihiko Hisada, Yu Kawasaki and 桑井智彦 : NdNb₂Al₂₀ の NMR, 日本物理学会春季大会, 2207, Mar. 2024.
3.	Ko-ichi Magishi, 杉浦輝, Akihiko Hisada, Yu Kawasaki and 桑井智彦 : PrTi₂(Al_1-xSi_x)₂₀ の NMR, 日本物理学会年次大会, Sep. 2023.
4.	澤元浩, Yu Kawasaki, Yutaka Kishimoto, Ko-ichi Magishi, 松本信洋 and 永田正一 : スピネル型硫化物 Cu(Ir_1-xRh_x)₂S₄ における金属絶縁体転移の NMR による研究, 日本物理学会年次大会, Sep. 2023.
5.	澤元浩, Yu Kawasaki, Yutaka Kishimoto, Ko-ichi Magishi, 松本信洋 and 永田正一 : スピネル型硫化物Cu(Ir1-xRhx)2S4の63Cu-NMR II, 日本物理学会秋季大会, Mar. 2023.
6.	杉浦輝, Ko-ichi Magishi, Akihiko Hisada, Yu Kawasaki, 雷前坤, 松本悠輝, 並木孝洋 and 西村克彦 : TmTr₂Al₂₀ (Tr = V, Ti) の NMR Ⅱ, Meeting abstracts of the Physical Society of Japan, Vol.77, No.2, 2296, Sep. 2022.
7.	杉浦輝, Ko-ichi Magishi, Akihiko Hisada, Yu Kawasaki, 雷前坤, 松本悠輝, 並木孝洋 and 西村克彦 : TmTr₂Al₂₀ (Tr = V, Ti) の NMR, Meeting abstracts of the Physical Society of Japan, Vol.77, No.1, 16pPSH96, Mar. 2022.
8.	Yu Kawasaki, 澤元浩, Yutaka Kishimoto, Ko-ichi Magishi, 松本信洋 and 永田正一 : スピネル型硫化物Cu(Ir1-xRhx)2S4の63Cu-NMR, 日本物理学会年次大会, Mar. 2022.
9.	秋山大介, Yu Kawasaki, Yutaka Kishimoto, Ko-ichi Magishi, Koichi Nakamura, Katsushi Nishino, 何長振 and 伊藤満 : スピンギャップを持つ擬一次元系交代鎖BaCu2V2O8のNMR, 日本物理学会秋季大会, Sep. 2021.
10.	金山真也, 出口智子, Yu Kawasaki, Ko-ichi Magishi, Yutaka Kishimoto, Koichi Nakamura, 中井祐介, 水戸毅, Z. Haque, L.C. Gupta and A.K. Ganguli : BiS2系層状化合物EuFBiS2のNMR/NQRによる研究, 日本物理学会 2020年秋季大会, Sep. 2020.
11.	吾郷輝夕, Yu Kawasaki, Ko-ichi Magishi, Yutaka Kishimoto, Koichi Nakamura, 何長振 and 伊藤満 : 擬一次元反強磁性体SrCo2V2O8のNMR, 日本物理学会秋季大会, Sep. 2020.
12.	Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, Ko-ichi Magishi, 何長振 and 伊藤満 : α-CoV2O6における磁気構造とスピンダイナミクス, 日本物理学会秋季大会, Sep. 2020.
13.	Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, Ko-ichi Magishi, 何長振 and 伊藤満 : α-CoV2O6における磁気構造とスピンダイナミクス, 日本物理学会年次大会, Mar. 2020.
14.	Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 水戸毅, 磯部正彦, 馬場拓行, 山内徹 and 上田寛 : バナジウムブロンズAg2/3V2O5における金属絶縁体転移のNMRによる研究, 日本物理学会 2019年秋季大会, Sep. 2019.
15.	Tomoko Deguchi, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 水戸毅, Z. Haque, L.C. Gupta and A.K. Ganguli : BiS2系層状化合物EuFBiS2のNMRによる研究, 日本物理学会 2019年秋季大会, Sep. 2019.
16.	Asahi Nojirino, Masaya Aki, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 水戸毅, 八島光晴, 椋田秀和, 小手川恒 and Hitoshi Sugawara : A15型超伝導体V3SiのSi-NMRによる研究, 日本物理学会 2019年秋季大会, Sep. 2019.
17.	Asahi Nojirino, Hiroo Mori, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 小山岳秀, 水戸毅, 八島光晴, 椋田秀和, 小手川恒 and Hitoshi Sugawara : A15型超伝導体V3SiのSi-NMRによる研究, 日本物理学会秋季大会, Mar. 2019.
18.	Hiroo Mori, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 何長振 and 伊藤満 : α-CoV2O6における磁気構造のNMRによる研究, 日本物理学会秋季大会, Sep. 2018.
19.	Hiroo Mori, Asahi Nojirino, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 小山岳秀, 水戸毅, 八島光晴, 椋田秀和, 小手川恒 and Hitoshi Sugawara : A15型超伝導体V3SiのSi-NMRによる研究, 日本物理学会秋季大会, Sep. 2018.
20.	Koichi Nakamura, 竹内智史, Munehiro Inukai, Yu Kawasaki, Toshihiro Moriga, 桑田直明 and 河村純一 : Na系遷移金属酸化物における電気伝導のNa組成依存性, 日本物理学会第73回年次大会講演概要集, Mar. 2018. (Summary) Na_xCoO₂をはじめとする層状Na遷移金属酸化物は，リチウムイオン二次電池に代わる次世代二次電池の正極材料として注目されている．Na_xMO₂ (M=Co, Cr)に着目し，電気伝導度と²3Na 核のスピン-格子緩和時間T₁の温度依存性から，Na⁺イオンの運動状態や局所構造について議論した．電気伝導度の温度依存性からNa_xCoO₂においてx=1, 0.9, 0.8に対して，それぞれ1.15eV，0.98eV，0.76eVとなり，Na_xCo_{2}O₂での活性化エネルギー(x=0.8で0.39eV，x=0.5で0.37eV)に比べて大きな値を示した．Na_xCrO₂のNa層内でのキャリアホッピング障壁が大きく，伝導度がNa_xCoO₂に比べ小さい一因と考えられる．
21.	竹内智史, Koichi Nakamura, Munehiro Inukai, Yu Kawasaki, Toshihiro Moriga, 桑田直明 and 河村純一 : Na_xMO₂(M=Co,Cr)の電気伝導と局所構造変化, 第43回固体イオニクス討論会, 4-5, Dec. 2017. (Summary) Layered oxides such as NaxMO2 (M = Co, Cr) have been studied as electrodes for replacing the lithium ion batteries. The relaxation time T1 of 23Na nucleus in Na0.8CoO2 decreased in the range from 180 K to 300 K and increased above 300 K. Temperature dependence of Electrical conductivity NaxCoO2 and NaxCrO2 shows that electric conduction of NaxCoO2 becomes larger than that of NaxCrO2.These results suggest that the crystal structure of NaxCoO2 becomes locally disordered. It is considered that the crystal structure of NaxCoO2 is unstable, and related to the improvement Na+ ion diffusion.
22.	Koichi Nakamura, Satoshi Takeuchi, Munehiro Inukai, Yu Kawasaki and Toshihiro Moriga : Na系遷移金属酸化物における局所構造とNa⁺イオンの運動状態, 日本物理学会2017年秋季大会講演概要集, Sep. 2017. (Summary) Na_xCoO₂をはじめとする層状酸化物は，リチウムイオン二次電池に代わる次世代型二次電池の正極材料として注目され，近年活発に研究されている．Na_xCoO₂におけるイオンの運動状態に着目し，電気伝導度測定やNMR(核磁気共鳴)法を用いた²³Naにおけるスピン-格子緩和時間T₁の結果から，Na⁺イオンの運動状態や局所構造について議論した．250K以下での23Na-NMR スペクトルは1本の中心線を示すが，室温以上ではCo副格子の局所的な変化にともなう電場勾配の変化の影響で四重極相互作用の2次の粉末図形スペクトルを示したが，700Kまでの高温度域でもスペクトルの先鋭化は見られなかった．Na_xCrO₂の電気伝導度における活性化エネルギーはNa組成に依存し0.7∼1eVと見積もられ，Na_xCoO₂(∼0.4eV)に比べ大きい．NaxCrO2の四重極相互作用はNa_xCoO₂より小さく，四重極相互作用の1次の粉末図形が観測された．
23.	Masaya Aki, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 小山岳秀, 水戸毅, 八島光晴, 椋田秀和, 小手川恒 and 菅原仁 : A15型超伝導体V3SiのSi-NMRによる研究II, 日本物理学会秋季大会, Sep. 2017.
24.	竹内智史, Munehiro Inukai, Yu Kawasaki, Toshihiro Moriga and Koichi Nakamura : Na_xCoO₂の電気伝導と局所構造変化, 日本物理学会第72回年次大会講演概要集, Mar. 2017.
25.	Masaya Aki, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 小山岳秀, 水戸毅, 八島光晴, 椋田秀和, 小手川恒 and 菅原仁 : A15型超伝導体V3SiのSi-NMRによる研究, 日本物理学会第72回年次大会講演概要集, Mar. 2017.
26.	Ryosuke Takimoto, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura and 寛上田 : Bi4V2O11-δ のNMRによる研究, 日本物理学会2016年秋季大会講演概要集, Sep. 2016.
27.	Yu Kawasaki, Ryosuke Takimoto, Yutaka Kishimoto, Koichi Nakamura and 寛上田 : Bi4V2O11-δ のNMRによる研究, 日本物理学会第71回年次大会講演概要集, Mar. 2016.
28.	Koichi Nakamura, Hiroaki Ito, Munehiro Inukai, Yu Kawasaki, Toshihiro Moriga, 桑田直明, 岩井良樹 and 河村純一 : オリビン型LiMPO₄(M=Fe, Mn)におけるLi⁺イオンの運動状態の変化, 日本物理学会第71回年次大会講演概要集, Mar. 2016. (Summary) オリビン系LiMnPO₄(LMO)とLiFePO₄(LFO)，特にLFO はこれまでの正極材料と同等な電極性能を有することから注目されている．LMO とLFO のLi⁺イオン拡散挙動と結晶構造の変化について，NMR測定の結果から議論した．LFOの線幅は550K以上で先鋭化を示し，Li⁺イオンの運動の存在を示唆しているが，600K以上では緩やかな温度依存性を示した．一方，LFOの600K以上でのXRDパターンはLi欠損したものと同様に，回折線の強度と半値幅などに変化が見られた．Li⁺イオンのdisorderやFeの酸化にともなう結晶構造の変化がLi⁺イオン運動の発現に関係していると考えられる．
29.	Koichi Nakamura, Hiroaki Ito, Masanori Tamura, Munehiro Inukai, Yu Kawasaki, Toshihiro Moriga, 岩井良樹, 桑田直明 and 河村純一 : LiMPO₄(M=Fe, Mn)における局所構造とLi⁺イオンの運動状態, 第41回固体イオニクス討論会, 16-17, Nov. 2015. (Summary) NMR spectra and spin-lattice relaxation time, T^-1, for ⁷Li nucleus have been probed to study the local structure and Li⁺ ion dynamics in olivine-type LiMPO₄ (M=Fe, Mn). Antimagnetic spin correlation was dominant at low temperatures in the NMR spectrum and relaxation time of both samples, while changes in the line width and relaxation time were observed in LiFePO₄ above 550K. This would be related with the Li⁺ ion motion in LiFePO₄ at high temperatures.
30.	Koichi Nakamura, Hiroaki Ito, Masanori Tamura, Munehiro Inukai, Yu Kawasaki, Toshihiro Moriga, 桑田直明, 岩井良樹 and 河村純一 : オリビン系リチウム遷移金属酸化物における高温でのリチウムイオンの運動状態, 日本物理学会2015年秋季大会講演概要集, Sep. 2015. (Summary) オリビン系LiMnPO₄(LMO)とLiFePO₄(LFO)，特にLFO はこれまでの正極材料と同等な電極性能を有することから注目されている．LMO とLFO のLi⁺イオン拡散挙動と結晶構造の変化について，NMR測定の結果から議論した．LMOでは⁷Li核のNMRスペクトルの室温以上の温度依存性に変化は見られなかったが，LFOの[7}Li核のNMRスペクトルの線幅は帯磁率にスケールするとともに，550K以上でLi⁺イオンの運動によると考えられる先鋭化を観測した．この温度域でLiFePO₄のLi核の磁化の回復曲線は単一指数関数に従うが，LiMnPO₄では従わなかった．
31.	Ryo Morioka, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 西山功兵, 小山岳秀, 水戸毅, 礒部正彦 and 上田寛 : バナジウムブロンズAg2/3V2O5における金属絶縁体転移のNMRによる研究III, 日本物理学会秋季大会, Sep. 2015.
32.	森岡亮, Yu Kawasaki, Yutaka Kishimoto, Koichi Nakamura, 西山功兵, 小山岳秀, 水戸毅, 礒部正彦 and 上田寛 : バナジウムブロンズAg2/3V2O5における金属絶縁体転移のNMRによる研究II, 日本物理学会年次大会, Mar. 2015.
33.	Koichi Nakamura, Kazuma Fujitsugu, Masanori Tamura, Akira Murakami, Munehiro Inukai, Toshihiro Moriga, Yu Kawasaki, 岩井良樹, 桑田直明 and 河村純一 : オリビン系リチウム遷移金属酸化物の局所構造とリチウムイオンの運動状態, 日本物理学会第70回年次大会(2015 年)概要集, 1541, Mar. 2015. (Summary) オリビン系LiMnPO₄(LMO)とLiFePO₄(LFO)，特にLFO はこれまでの正極材料と同等な電極性能を有することから注目されている．LMO とLFO のLi⁺イオン拡散挙動と結晶構造の変化について，NMR測定の結果から議論した．LMOでは⁷Li核のNMRスペクトルの室温以上の温度依存性に変化は見られなかったが，LFOの[7}Li核のNMRスペクトルの線幅は帯磁率にスケールするとともに，550K以上でLi⁺イオンの運動によると考えられる先鋭化を観測した．デバイ型の緩和モデルによるLi⁺イオンの拡散の活性化エネルギーは室温以下のμSR測定から得られたものより大きなものであった．
34.	Yu Kawasaki, 森岡亮, Yutaka Kishimoto, Koichi Nakamura, 何長振, 上田寛 and 伊藤満 : 擬1次元反強磁性体SrCo2V2O8のNMR, 日本物理学会年次大会, Mar. 2015.
35.	Kazuma Fujitsugu, Akira Murakami, Koichi Nakamura, Yu Kawasaki, Toshihiro Moriga, 岩井良樹, 桑田直明 and 河村純一 : リチウムマンガン酸化物におけるイオン拡散挙動と局所構造変化, 第40回固体イオニクス討論会, 113-114, Nov. 2014.
36.	森岡亮, Yu Kawasaki, 岩谷匠, Yutaka Kishimoto, Koichi Nakamura, 西山功兵, 小山岳秀, 水戸毅, 礒部正彦 and 上田寛 : バナジウムブロンズAg0.68V2O5における金属絶縁体転移のNMRによる研究, 日本物理学会秋季大会, Sep. 2014.
37.	Yu Kawasaki, 森岡亮, 岩谷匠, Yutaka Kishimoto, Koichi Nakamura, 西山功兵, 小山岳秀, 水戸毅, 礒部正彦 and 寛上田 : δ-Ag0.68V2O5 のV-NMR, 日本物理学会年次大会, Mar. 2014.
38.	Yu Kawasaki, Yutaka Kishimoto, 出田勇亀一, 西山功兵, 小山岳秀, 水戸毅, 八島光晴, 椋田秀和, 北岡良雄, 大村公美子, 藤田崇仁, 木村尚次郎 and 萩原政幸 : BaCo2V2O8における磁場誘起インコメンシュレート相のV-NMRによる研究 II, 日本物理学会 2013年秋季大会, Sep. 2013.
39.	Yu Kawasaki, Yutaka Kishimoto, 出田勇亀一, 西山功兵, 小山岳秀, 水戸毅, 八島光晴, 椋田秀和, 北岡良雄, 大村公美子, 藤田崇仁, 木村尚次郎 and 萩原政幸 : BaCo2V2O8における磁場誘起インコメンシュレート相のV-NMRによる研究, 第68回年次大会, Mar. 2013.
40.	Yu Kawasaki, Yutaka Kishimoto, 出田勇亀一, 大村公美子, 藤田崇仁, 木村尚次郎 and 萩原政幸 : 単結晶BaCo2V2O8のV-NMRによる研究, 量子スピン系の物理, Nov. 2012.
41.	Yu Kawasaki, Yutaka Kishimoto, 出田勇亀一, 大村公美子, 藤田崇仁, 木村尚次郎 and 萩原政幸 : BaCo₂V₂O₈単結晶のV-NMR測定, 第67回年次大会, Mar. 2012. (Keyword) NMR
42.	徳永陽, 齋藤庸, 酒井宏典, 神戸振作, 眞田直幸, 綿貫竜太, 鈴木和也, Yu Kawasaki and Yutaka Kishimoto : TbCoGa₅の磁気秩序のNMR/NQRによる研究, 2011年秋季大会, Sep. 2011. (Keyword) NMR
43.	Yu Kawasaki, Yutaka Kishimoto, 幸田章宏, 門野良典, 中島智彦 and 上田寛 : Aサイト秩序型ペロブスカイトMn酸化物LaBaMn₂O₆のμSR, 日本物理学会年次大会, Mar. 2011.
44.	齋藤庸, 酒井宏典, 徳永陽, 神戸振作, 眞田直幸, 綿貫竜太, 鈴木和也, Yu Kawasaki and Yutaka Kishimoto : TbCoGa₅のNMR/NQRによる研究2, 日本物理学会年次大会, Mar. 2011. (Keyword) NMR
45.	齋藤庸, 酒井宏典, 徳永陽, 神戸振作, 眞田直幸, 綿貫竜太, 鈴木和也, Yu Kawasaki and Yutaka Kishimoto : TbCoGa₅のNMR/NQRによる研究, 日本物理学会秋季大会, Sep. 2010. (Keyword) NMR
46.	高瀬翔太, Yu Kawasaki, Yutaka Kishimoto, 城健太郎, 山田幾也, 大串研也, 西山宣正, 高橋亮治, 井上徹 and 入舩徹男 : 新奇Aサイト秩序型ペロブスカイトAA'₃B₄O₁₂のNMR, 日本物理学会秋季大会, Sep. 2010. (Keyword) NMR
47.	Yutaka Kishimoto, Yu Kawasaki, 出田勇亀一, Takashi Ohno, 何長振, 上田寛 and 伊藤満 : 擬1次元磁性体BaCo₂V₂O₈の⁵¹V NMR III, 日本物理学会年次大会, Mar. 2010. (Keyword) NMR
48.	Yu Kawasaki, 木村聡志, Yutaka Kishimoto, Takashi Ohno, 田中哲, 新高誠司, 片山尚幸 and 高木英典 : 二次元三角格子LiVS₂とLiVO₂のNMR, 日本物理学会年次大会, Mar. 2010. (Keyword) NMR
49.	高瀬翔太, Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, 城健太郎, 山田幾也, 大串研也, 西山宣正, 高橋亮治, 井上徹 and 入舩徹男 : 新奇Aサイト秩序型ペロブスカイトLaMn₃Cr₄O₁₂のNMR, 日本物理学会年次大会, Mar. 2010. (Keyword) NMR
50.	Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, 上田寛 and 中島智彦 : Aサイト秩序型コバルト酸化物LaBaCo₂O₆のNMR, 日本物理学会秋季大会, Sep. 2009. (Keyword) NMR / spin-lattice relaxation
51.	田中哲, Yu Kawasaki, 遠藤茂紀, 木村聡志, 出田勇亀一, Yutaka Kishimoto, Takashi Ohno, 片山尚幸, 野原実 and 高木英典 : 三角格子系LiVS₂のスピントライマーとスピンギャップ, 日本物理学会秋季大会, Sep. 2009. (Keyword) NMR / spin-lattice relaxation
52.	Yutaka Kishimoto, Yu Kawasaki, 出田勇亀一, Takashi Ohno, 何長振, 寛上田 and 伊藤満 : 擬1次元磁性体 BaCo₂V₂O₈ の ⁵¹V NMR, 日本物理学会秋季大会, Sep. 2009. (Keyword) NMR / spin-lattice relaxation
53.	Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, 上田寛 and 中島智彦 : Aサイト秩序型マンガン酸化物 RBaMn₂O₆(R = Nd，Pr)の基底状態のNMRによる研究, 日本物理学会年次大会, Mar. 2009. (Keyword) NMR
54.	Yutaka Kishimoto, Yu Kawasaki, 出田勇亀一, Takashi Ohno, 何長振, 上田寛 and 伊藤満 : 擬1次元磁性体 BaCo₂V₂O₈ の ⁵¹V NMR II, 日本物理学会年次大会, Mar. 2009. (Keyword) NMR / spin-lattice relaxation
55.	Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, R.A. Ribeiro and 高畠敏郎 : Yb₁₄MnSb₁₁のNMR, 日本物理学会第63回年次大会, Mar. 2008.
56.	Yutaka Kishimoto, 遠藤茂紀, 田邉正芳, Yu Kawasaki, Takashi Ohno, A. K. Tyagi, G. Ghosh and L. C. Gupta : 希土類化合物 RRuB₂ の ¹¹B-NMR IV, 日本物理学会第63回年次大会, Mar. 2008. (Keyword) 希土類化合物 / RRuB₂ / 超伝導 / NMR / スピン-格子緩和
57.	高岸誠和, Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, 山崎悟志, 植田浩明 and 上田寛 : スピンラダー系 V₄O₉の⁵¹V NMR, 日本物理学会第62回年次大会, Sep. 2007.
58.	Yu Kawasaki, J.L. Gavilano, L. Keller, A. Amato, Takashi Ohno, 何長振, 上田寛 and 伊藤満 : 擬一次元コバルト化合物BaCo₂V₂O₈の磁性, 日本物理学会第62回年次大会, Sep. 2007.
59.	田邉正芳, Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, A. K. Tyagi, G. Ghosh and L. C. Gupta : 希土類化合物 RRuB₂ の ¹¹B-NMR III, 日本物理学会第62回年次大会, Sep. 2007. (Keyword) LuRuB₂ / YRuB₂ / 超伝導 / NMR / スピン-格子緩和
60.	幸田章宏, 佐藤宏樹, 竹下聡史, 門野良典, 大石一城, 髭本亘, S.R. シャハ, Yu Kawasaki, 南武志, 米澤茂樹, 広井善二 and 村岡祐治 : muSR 法によるパイロクロア酸化物超伝導体AOs₂O₆ (A = K, Rb, Cs)の異方的準粒子励起の研究III, 日本物理学会第62回年次大会, Mar. 2007.
61.	小手川恒, 川崎慎司, Yu Kawasaki, 鄭国慶, 北岡良雄, 芳賀芳範, 山本悦嗣, 大貫惇睦, 伊藤公平 and E.E. Haller : UGe₂の⁷³Ge-NMR/NQRによる研究, 日本物理学会秋季大会, Sep. 2004.
62.	Yu Kawasaki, 和泉真, 南武志, 藤島正智, Yutaka Kishimoto, Takashi Ohno, 久保英範, 中島智彦 and 上田寛 : Aサイト秩序型マンガン酸化物RBaMn₂O₆のNMR, 日本物理学会秋季大会, Sep. 2004.
63.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno and 李徳新 : La₃Ir₂Ge₂ の NQR, 日本物理学会年次大会, Mar. 2004.
64.	川崎慎司, 水戸毅, Yu Kawasaki, 小手川恒, 鄭国慶, 北岡良雄, 青木大, 宍戸寛明, 荒木新吾, 芳賀芳範, 摂待力生 and 大貫惇睦 : CeIn₃及びCeRhIn₅の圧力相図:¹¹⁵In-NQRによる研究, 日本物理学会年次大会, Mar. 2004.
65.	Takashi Ohno, 久保英範, Yu Kawasaki, Yutaka Kishimoto, 中島智彦 and 上田寛 : 規則格子系RBaMn₂O₆のNMR, 日本物理学会年次大会, Mar. 2004.
66.	原田淳之, 小手川恒, 川崎慎司, Yu Kawasaki, 鄭国慶, 北岡良雄, 芳賀芳範, 山本悦嗣, 大貫惇睦, 伊藤公平 and E.E. Haller : UGe₂の⁷³Ge-NMR/NQRによる研究, 日本物理学会年次大会, Mar. 2004.
67.	Takashi Ohno, Yutaka Kishimoto, Yu Kawasaki, 日原岳彦, 隅山兼治, Laxmi C. Gupta and Goutam Ghosh : LaRu₃Si₂ の NMR, 日本物理学会年次大会, Sep. 2003.
68.	川崎慎司, 水戸毅, Yu Kawasaki, 鄭国慶, 北岡良雄, 宍戸寛明, 荒木新吾, 摂待力生 and 大貫惇睦 : CeIn₃の圧力下¹¹⁵In-NQRによる研究II, 日本物理学会秋季大会, Sep. 2003.
69.	今井規貴, Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, 久保英範, 吉居俊輔 and 笠谷光男 : CeRhBiのBi-NQR, 日本物理学会秋季大会, Sep. 2003.
70.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, 日原岳彦 and 隅山兼治 : CeRu₃Si₂の帯磁率II, 日本物理学会秋季大会, Sep. 2003.
71.	Yutaka Kishimoto, Takashi Ohno, Yu Kawasaki, 日原岳彦, 隅山兼治, Laxmi C. Gupta and Goutam Ghosh : CeRu₃Si₂ の帯磁率, 日本物理学会年次大会, Mar. 2003.
72.	Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, タミザベルアルムガム, 摂待力生 and 大貫惇睦 : CeAgSb₂のSb-NMR/NQR, 日本物理学会年次大会, Mar. 2003.
73.	石田憲二, Yu Kawasaki, 幸田章宏, 髭本亘, 門野良典, O. Trovarelli, C. Geibel, F. Steglich and D.E. MacLaughlin : 重い電子電子系物質YbRh₂Si₂の磁気臨界点近傍におけるスピンゆらぎ, 日本物理学会年次大会, Mar. 2003.
74.	八島光晴, 川崎慎司, Yu Kawasaki, 小手川恒, 鄭国慶, 北岡良雄, 宍戸寛明, 芳賀芳範, 摂待力生 and 大貫惇睦 : 重い電子系超伝導体CeCoIn₅のNQR/NMRによる研究, 日本物理学会年次大会, Mar. 2003.
75.	川崎慎司, 水戸毅, Yu Kawasaki, 鄭国慶, 北岡良雄, 青木大, 芳賀芳範 and 大貫惇睦 : CeRhIn₅ の圧力下¹¹⁵In-NQRによる研究IV, 日本物理学会年次大会, Mar. 2003.
76.	小手川恒, 川崎慎司, 原田淳之, Yu Kawasaki, 岡本薫, 鄭国慶, 北岡良雄, 山本悦嗣, 芳賀芳範, 大貫惇睦 and 伊藤公平 : UGe₂の⁷³Ge-NMR/NQRによる研究II, 日本物理学会年次大会, Mar. 2003.
77.	川崎慎司, 水戸毅, Yu Kawasaki, 鄭国慶, 北岡良雄, 荒木新吾, 摂待力生 and 大貫惇睦 : CeIn₃の圧力下¹¹⁵In-NQRによる研究, 日本物理学会秋季大会, Oct. 2002.
78.	辻成悟, 小林慎一郎, 芳野康洋, 藤秀樹, 世良正文, 伊賀文俊, 小島健一 and Yu Kawasaki : Ce_0.5Pr_0.5B₆およびCe_xNd_1-xB₆におけるKondo効果と多重極相互作用, 日本物理学会秋季大会, Oct. 2002.
79.	小手川恒, 原田淳之, Yu Kawasaki, 岡本薫, 北岡良雄, 山本悦嗣, 芳賀芳範, 大貫惇睦 and 伊藤公平 : UGe₂, URhGeのNMR/NQRによる研究, 日本物理学会秋季大会, Oct. 2002.
80.	Takashi Ohno, Yutaka Kishimoto, Yu Kawasaki, 牛田泰久, 本間佳哉, 塩川佳伸 and 西岡孝 : 非晶質UPd₂Al₃の非フェルミ液体的挙動, 日本物理学会秋季大会, Oct. 2002.
81.	Yutaka Kishimoto, Takashi Ohno, Yu Kawasaki, 日原岳彦, 隅山兼治, Goutam Ghosh and Laxmi C. Gupta : LaRu₃Si₂の帯磁率II, 日本物理学会秋季大会, Oct. 2002.
82.	Yu Kawasaki, Yutaka Kishimoto, Takashi Ohno, 石田憲二, 鄭国慶, 川崎慎司, 水戸毅, 北岡良雄, 宍戸寛明, 摂待力夫, 芳賀芳範 and 大貫惇睦 : CeCoIn₅のNMR/NQR, 日本物理学会中国·四国支部, Jul. 2002.
83.	Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, 日原岳彦, 隅山兼治, Laxmi C. Gupta and Goutam Ghosh : LaRu₃Si₂の超伝導と帯磁率II, 日本物理学会中国·四国支部, Jul. 2002.
84.	Takashi Ohno, Yutaka Kishimoto, Yu Kawasaki, 牛田泰久, 本間佳哉, 塩川佳伸 and 西岡孝 : 非晶質UPd₂Al₃の帯磁率，電気抵抗，比熱, 日本物理学会中国·四国支部, Jul. 2002.
85.	岡本薫, 石田憲二, Yu Kawasaki, 北岡良雄, 髭本亘, 幸田章宏, 門野良典, Octavio Trovarelli, Christophe Geibel and Frank Steglich : YbRh₂Si₂の磁気臨界点近傍におけるスピンゆらぎ, 日本物理学会年次大会, Vol.57, Mar. 2002.
86.	Yu Kawasaki, 石田憲二, 鄭国慶, 川崎慎司, 水戸毅, 北岡良雄, 宍戸寛明, 摂待力生, 芳賀芳範 and 大貫惇睦 : CeCoIn₅ の NMR/NQR, 日本物理学会年次大会, Vol.57, Mar. 2002.
87.	川崎慎司, 水戸毅, Yu Kawasaki, 鄭国慶, 石田憲二, 北岡良雄, 宍戸寛明, 青木大, 芳賀芳範 and 大貫惇睦 : CeRhIn₅の圧力下In-NQRによる研究III, 日本物理学会年次大会, Vol.57, Mar. 2002.
88.	髭本亘, 幸田章宏, 門野良典, Yu Kawasaki, 岡本薫, 宍戸寛明, 摂待力生 and 大貫惇睦 : CeCoIn₅のミュオンによるナイトシフト測定, 日本物理学会年次大会, Vol.57, Mar. 2002.
89.	岡本薫, 石田憲二, Yu Kawasaki, 北岡良雄, Octavio Trovarelli, Christoph Geibel and Frank Steglich : 磁気臨界点近傍に位置するYbRh₂Si₂のSi-NMR, 日本物理学会秋季大会, Sep. 2001.
90.	髭本亘, 幸田章宏, 門野良典, Yu Kawasaki, 宍戸寛明, 摂待力夫 and 大貫惇睦 : CeCoIn₅のμSR, 日本物理学会秋季大会, Sep. 2001.
91.	幸田章宏, 髭本亘, 門野良典, Yu Kawasaki, 石田憲二, 北岡良雄, Christoph Geibel and Frank Steglich : μSRによるCeCu₂Si₂の異常磁性A相の研究Ⅲ, 日本物理学会秋季大会, Sep. 2001.
92.	川崎慎司, 水戸毅, Christophe Thessieu, Yu Kawasaki, 鄭国慶, 石田憲二, 北岡良雄, 青木大, 荒木新吾, 芳賀芳範, 摂待力夫 and 大貫惇睦 : CeRhIn₅の圧力下¹¹⁵In-NQRによる研究Ⅱ, 日本物理学会秋季大会, Sep. 2001.
93.	Yu Kawasaki, 石田憲二, 鄭国慶, 川崎慎司, 水戸毅, 北岡良雄, 宍戸寛明, 摂待力夫, 芳賀芳範 and 大貫惇睦 : CeCoIn₅ の NMR/NQR, 日本物理学会秋季大会, Sep. 2001.
94.	Yu Kawasaki, 石田憲二, 大日方圭, 水戸毅, 鄭国慶, 北岡良雄, Christoph Geibel and Frank Steglich : CeCu₂(Si_1-xGe_x)₂ の Cu NQR とその圧力効果, 日本物理学会秋季大会, Sep. 2001.
95.	門野良典, 幸田章宏, 髭本亘, Yu Kawasaki, 花輪雅史 and 広井善二 : μSRで見たパイロクロア超伝導体Cd₂Re₂O₇の混合状態における準粒子励起, 日本物理学会秋季大会, Sep. 2001.
96.	Yu Kawasaki, 石田憲二, 大日方圭, 水戸毅, 鄭国慶, 北岡良雄, Christoph Geibel and Frank Steglich : CeCu₂(Si_1-xGe_x)₂ の Cu NQR とその圧力効果, 日本物理学会年会, Vol.56, Mar. 2001.
97.	岡本薫, 石田憲二, Yu Kawasaki, 北岡良雄, Octavio Trovarelli, Christophe Geibel and Frank Steglich : 磁気臨界点近傍に位置するYbRh₂Si₂のSi-NMR, 日本物理学会年会, Vol.56, Mar. 2001.
98.	川崎慎司, 水戸毅, 鄭国慶, Yu Kawasaki, 石田憲二, 北岡良雄, 芳賀芳範, 青木大 and 大貫惇睦 : CeRhIn₅の圧力下¹¹⁵In-NQRによる研究, 日本物理学会年次大会, Vol.56, Mar. 2001.
99.	Yu Kawasaki, 石田憲二, 水戸毅, Christophe Thessieu, 鄭国慶, 北岡良雄, Christoph Geibel and Frank Steglich : 高圧下における Ce_1-xCu₂Si₂ の磁性と超伝導, 日本物理学会年会, Vol.55, Sep. 2000.
100.	川崎慎司, 水戸毅, 鄭国慶, 石田憲二, Yu Kawasaki, 田辺憲志, 徳永陽, 北岡良雄, 芳賀芳範, 常磐欣文, 青木大 and 大貫惇睦 : CeRhIn₅のIn-NQRによる研究, 日本物理学会年会, Vol.55, Sep. 2000.
101.	幸田章宏, 髭本亘, 門野良典, Yu Kawasaki, 石田憲二, 北岡良雄, Christoph Geibel and Frank Steglich : μSRによるCeCu₂Si₂の異常磁性A相の研究II, 日本物理学会年会, Vol.55, Sep. 2000.
102.	大蔵英彦, Yu Kawasaki, 北岡良雄, 都福仁, 福原忠 and 前沢邦彦 : Ce_1-xLa_xRu₂Si₂, CeRu₂(Si_1-xGe_x)₂のRu-NQR, 日本物理学会 2000年春の分科会, Mar. 2000.
103.	Yu Kawasaki, 石田憲二, 水戸毅, Christophe Thessieu, 鄭国慶, 北岡良雄, Christoph Geibel and Frank Steglich : 高圧下における Ce_1-xCu₂Si₂ の磁性と超伝導, 日本物理学会 2000年春の分科会, Mar. 2000.
104.	川崎慎司, 水戸毅, 石田憲二, Yu Kawasaki and 鄭国慶 : Ce系化合物の磁気秩序圧力効果, 日本物理学会 2000年春の分科会, Mar. 2000.
105.	大蔵英彦, Yu Kawasaki, 石田憲二, 北岡良雄, 中山裕之, 都福仁 and 福原忠 : Ce_1-xLa_xRu₂Si₂, CeRu₂(Si_1-xGe_x)₂のRu-NQR, 日本物理学会秋の分科会, Oct. 1999.
106.	Yu Kawasaki, 石田憲二, 水戸毅, Christophe Thessieu, 鄭国慶, 北岡良雄, Christoph Geibel and Frank Steglich : 高圧下における Ce_1-xCu₂Si₂ の磁性と超伝導, 日本物理学会秋の分科会, Sep. 1999.
107.	幸田章宏, 髭本亘, 門野良典, Yu Kawasaki, 石田憲二, 北岡良雄, Christoph Geibel and Frank Steglich : μSRによるCe_1+xCu_2+ySi₂の異常磁性A相の研究, 日本物理学会秋の分科会, Sep. 1999.

Et cetera, Workshop:

1.	Yu Kawasaki : Aサイト秩序型マンガン酸化物における電子相分離, 核磁気共鳴を主とした物性研究の新展開, Mar. 2017.
2.	Takashi Ohno, Yu Kawasaki, Tetsu Tanaka, Yutaka Kishimoto, Naoyuki Katayama, Minoru Nohara and Hidenori Takagi : Trimer Spin Singlet State in LiVS₂ Probed by ⁵¹V and ⁷Li NMR, Abstract book of Nobel Spin Pairing 2009, Vol.1, 96, Sep. 2009.
3.	Yu Kawasaki : 複合極限下における核磁気共鳴, 大阪大学低温センターだより, No.100, 15-16, Dec. 1997.

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Novel physical properties induced by mobile ions in strongly correlated electron systems (Project/Area Number: 17K05034 )
Aサイト秩序型マンガン酸化物における電子相分離のNMRによる研究 (Project/Area Number: 17740231 )
Microscopic Research of Spin, Charge and Orbital Ordering in A-Site Ordered Manganites (Project/Area Number: 16540324 )
Search by Researcher Number (10346588)

Associate Professor : Kawasaki, Yu

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Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)