List of Publications

2003

Low-Temperature Magnetic Order and Spin Dynamics in YbRh₂Si₂,

K. Ishida, D.E. MacLaughlin, Ben-Li Young, K. Okamoto, Y. Kawasaki, Y. Kitaoka, G.J. Nieuwenhuys, R.H. Heffner, O.O. Bernal, W. Higemoto, A. Koda, R. Kadono, O. Trovarelli, C. Geibel, and F. Steglich,

Phys. Rev. B 68, 184401-1-14 (2003).

Unconventional Superconductivity and Nearly Ferromagnetic Spin Fluctuations in Na_xCoO₂・yH₂O,

K. Ishida, Y. Ihara, Y. Maeno, C. Michioka, M. Kato, K. Yoshimura, K. Takada, T. Sasaki, H. Sakurai, and E. Takayama-Muomachi,

Journal of the Physical Society of Japan 72, 3041-3044 (2003).

NMR/NQR Study of CeCoIn₅

Y. Kawasaki, S. Kawasaki, T. Mito, G. Zheng, Y. Kitaoka, K. Ishida, H.Shishido,R. Settai, Y. Haga, and Y. Onuki,

to be published in Proc. LT23 (2003).

²⁷Al-Knight Shift Measurement on Heavy-Fermion Superconductor UNi₂Al₃,

K. Ishida, H. Tou, Y. Kitaoka, N. Tateiwa, N. K. Sato, N. Aso, C. Geibel, and F. Steglich,

to be published in Proc. LT23 (2003).

Spin Fluctuaions on YbRh₂Si₂ in the Vicinity of a Quantum-Critical Point Revealed by ²⁹Si NMR,

K. Ishida, K. Okamoto, Y. Kawasaki, Y. Kitaoka, O. Trovarelli, C. Geibel, and F. Steglich,

to be published in Proc. LT23 (2003).

Novel Phase Boundary in the Field Induced Spin Density Wave State in (TMTSF)₂PF₆,

A.V. Kornilov, V.M. Pudalov, Y. Kitaoka, K. Ishida, T. Mito, J.S. Brooks, J.S. Qualls,

Synthetic Metals 133-134, 69-70 (MAR 13 2003).

μSR and NMR in f-electron Non-Fermi Liquid Materials,

D.E. MacLaughlin, M.S. Rose, B.L. Young, O.O. Bernal, R.H. Heffner, G.D. Morris,K. Ishida, G.J. Nieuwenhuys, and J.E. Sonier,

Physica B-Condensed Matter 326, 381-386 (FEB 2003).

μSR and Low-Temperature Antiferromagnetism in the Ordered Non-Fermi-Liquid Compound YbRh2Si2,

K. Ishida, D.E. MacLaughlin, K. Okamoto, Y. Kawasaki, Y. Kitaoka, G.J. Nieuwenhuys, O.O. Bernal, A. Koda, W. Higemoto, R. Kadono, C. Geibel, and F. Steglich,

Physica B 329-333, 589-590 (May 2003).

Spin Dynamics in a Structurally Ordered Non-Fermi-Liquid Compound: YbRh₂Si₂,

K. Ishida, D.E. MacLaughlin, O.O. Bernal, R.H. Heffner, G.J. Nieuwenhuys, O. Trovarelli, C. Geibel, and F. Steglich,

Physica B 326, 403-405 (2003).

Evolution of Normal-State Magnetic Fluctuations by Ca and Ti Substitutions in Sr₂RuO₄: ⁸⁷Sr-NMR Study,

K. Ishida, Y. Minami, Y. Kitaoka, S. Nakatsuji, N. Kikugawa, and Y. Maeno,

Phys. Rev. B 67, 214412-1-6 (2003).

Al Knight-Shift Measurement in the Superconducting State of UNi₂Al₃,

K. Ishida, H. Tou, N. Tateiwa, Y. Kitaoka, K.N. Sato, N. Aso, C. Geibel, and F. Steglich,

Physica C 388-389, 535-536 (2003).

Ferromagnetic Correlations in Ca-doped Sr₂RuO₄: ⁸⁷SrNMR Study,

K. Ishida, Y. Minami, Y. Kitaoka, S. Nakatsuji, and Y. Maeno,

Journal of Low Temperature Physics 131, 1227-1236 (2003).

2002

Exotic Magnetism and Superconductivity in Ge-Substituted CeCu₂Si₂: A Cu NQR Study,

Y. Kawasaki, K. Ishida, K. Obinata, K. Tabuchi, K. Kashima, Y. Kitaoka, O. Trovarelli,C. Geibel, and F. Steglich,

Physical Review B 66, 224502 (DEC 1 2002).

Evidence for Strong-Couplings-Wave Superconductivity in MgB₂: ¹¹B-NMR Study of MgB₂ and the Related Materials,

H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka, N. Nakagawa, H. Takagiwa and J. Akimitsu

Physica C: Superconductivity, 378-381, 25-32 (1 October 2002)

Evidence for High-Frequency Phonon Mediated S-Wave Superconductivity: ¹¹B-NMR Study of Al-Doped MgB₂,

H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka, N. Nakagawa, H. Takagiwa, J. Akimitsu,

Physical Review B 66, 064516 (AUG 1 2002).

Equation of State of CeCu₂Ge₂ at Cryogenic Temperature,

Onodera, S. Tsuduki, Y. Ohishi, T. Watanuki, K. Ishida, Y. Kitaoka, and Y. Onuki,

Solid State Communications 123, 113-116 (2002).

Nuclear Magnetic Resonance Method for Determining the Magnetic Easy Direction in Anisotropic Paramagnetic Powders,

B.L. Young, M.S. Rose, D.E. MacLaughlin, K. Ishida, O.O. Bernal, H.G. Lukefahr, K. Heuser, E.J. Freeman, and M.B. Maple ,

Review of Scientific Instruments 73, 3038-3043 (AUG 2002).

Coexistence of Antiferromagnetism and Superconductivity in Heavy-Fermion Systems,

Y. Kitaoka, Y. Kawasaki, T. Mito, S. Kawasaki, G.Q. Zheng, K. Ishida, D. Aoki, Y. Haga, R. Settai, Y. Onuki, C. Geibel, and F. Steglich,

Journal of Physics and Chemistry of Solids 63, 1141-1146 (JUN-AUG 2002).

Evidence for the Coexistence of Superconductivity and the Magnetic A-Phase in CeCu₂Si₂ Proved by Muon Knight Shift,

A. Koda, W. Higemoto, R. Kadono, Y. Kawasaki, K. Ishida, Y. Kitaoka, C. Geibel, and F. Steglich,

Journal of the Physical Society of Japan 71, 1427-1430 (JUN 2002).

Systematic NQR Study of the Pressure-Induced Transition from Antiferromagnetic to Superconducting State in CeRhIn₅,

T. Mito, S. Kawasaki, G.Q. Zheng, Y. Kawasaki, K. Ishida, Y. Kitaoka, D. Aoki, Y. Haga, and Y. Onuki,

Physica B 312, 16-18 (MAR 2002).

Cu-NQR Study of CeCu₂(Si_0.98Ge_0.02)₂ Under Hydrostatic Pressure,

Y. Kawasaki, K. Ishida, K. Obinata, T. Mito, G.Q. Zheng, Y. Kitaoka, C. Geibel, and F. Steglich

Physica B 312, 428-430 (MAR 2002).

YbRh₂Si₂: Spin Fluctuations in the Vicinity of a Quantum-Critical Point at Low Magnetic Field,

K. Ishida, K. Okamoto, Y. Kawasaki, Y. Kitaoka, O. Trovarelli, C. Geibel, and F. Steglich,

Phys. Rev. Lett. 89, 107202-1-4 (2002).

Spin-Triplet Superconductivity in UNi₂Al₃ Revealed by the ²⁷Al-Knight Shift Measurement,

K. Ishida, D. Ozaki, T. Kamatsuka, H. Tou, M. Kyogaku, Y. Kitaoka, N. Tateiwa, N. K. Sato, N. Aso, C. Geibel, and F. Steglich,

Phys. Rev. Lett. 89, 037002 (Jul 15, 2002).

Electron Spin Dynamics in the Spin-Triplet Superconducting State of Sr₂RuO₄,

H. Mukuda, K. Ishida, Y. Kitaoka, K. Miyake, Z.Q. Mao, Y. Mori, and Y. Maeno,

Phys. Rev. B 65, 132507-1-4 (April 1, 2002).

Novel Phases in the Field-Induced Spin-Density-Wave State in (TMTSF) ₂PF₆,

A.V. Kornilov, V.M. Pudalov, Y. Kitaoka, K. Ishida, T. Mito, J.S. Brooks, J.S. Qualls, J.A.A. J. Perenboom, N. Tateiwa, and T.C. Kobayashi,

Phys. Rev. B 65, 060404 (Feb 1, 2002).

Pressure-Temperature Phase Diagram of Antiferromagnetism and Superconductivity in CeRhIn₅ and CeIn ₃: ¹¹⁵In-NQR Study Under Pressure,

S. Kawasaki, T. Mito, G.-Q. Zheng, C. Thessieu, Y. Kawasaki, K. Ishida, Y. Kitaoka, T. Muramatsu, T.C. Kobayashi, D. Aoki, S. Araki, Y. Haga, R. Settai, and Y. Onuki,

Phys. Rev. B 65, 020504(R) (Jan 1, 2002).

Superconducting and Magnetic Characteristics in the Multilayered High-T_c Cuprates TlBa₂Ca₂Cu₃O_10-y with Tc ~ 130 K Probed by Cu and Tl NMR: High Value for T_c,

H. Kotegawa, Y. Tokunaga, K. Ishida, G.-q. Zheng, Y. Kitaoka, A. Iyo, Y. Tanaka, and H. Ihara,

Phys. Rev. B 65, 184504 (May 1, 2002).

2001

Exotic Magnetic and Superconducting Phases in CeCu₂Si₂ Close to Magnetically Ordered State : Cu-NQR Study,

Y. Kawasaki, K. Obinata, K. Ishida, T. Mito, G. -q. Zheng, Y. Kitaoka, C. Geibel, and F. Steglich

Journal of Magnetism and Magnetic Materials 226-230, 374-375 (May 2001)

Coexistence of Ferromagnetism and Superconductivity in Magnetic Superconductor RuSr₂YCu₂O₈ Revealed by ⁶³Cu-NMR,

Y. Tokunaga, H. Kotegawa, K. Ishida, Y. Kitaoka, H. Takagiwa, and J. Akimitsu

Physica C: Superconductivity, 364-365, 379-382 (November 2001).

Spin Gap and Superconducting Fluctuations in Bi₂Sr₂CaCu₂O₈₊ Probed by ⁶³Cu NMR,

Y. Tokunaga, K. Ishida, K. Yoshida, T. Mito, Y. Kitaoka, K. Asayama, Y. Nakayama, J. Shimoyama, K. Kishio, K. Kadowaki and T. Mochiku

Journal of Physics and Chemistry of Solids 62, 167-170 (January 2001).

NMR Study of Carrier Distribution and Superconductivity in Multilayered High-T_c Cuprates,

H. Kotegawa, Y. Tokunaga, K. Ishida, G. -q. Zheng, Y. Kitaoka, K. Asayama, H. Kito, A. Iyo, H. Ihara, K. Tanaka

Journal of Physics and Chemistry of Solids 62, 171-175 (January 2001).

Normal-State Spin Dynamics in the Spin-Triplet Superconductor Sr₂RuO₄,

K. Ishida, H. Mukuda, Y. Minami, Y. Kitaoka, Z.Q. Mao, H. Fukazawa, and Y. Maeno,

Phys. Rev. B 64, 100501-1-4 (2001).

Ru-Knight Shift Measurement in the Superconducting State of Sr₂RuO₄,

K. Ishida, H. Mukuda, Y. Kitaoka, Z.Q. Mao, H. Fukazawa, and Y. Maeno,

J. Magn. Magn. Mater 226, 353-354 (2001).

Ru-NMR Probe of Spin Susceptibility in the Superconducting State of Sr₂RuO₄,

K. Ishida, H. Mukuda, Y. Kitaoka, Z.Q. Mao, H. Fukazawa, and Y. Maeno,

Phys. Rev. B 63, 060507(R)-1-4 (2001).

2000

In-NQR Study of CeIn₃ under Pressure,

C. Thessieu, K. Ishida, S. Kawasaki, T. Mito, Y. Kawasaki, G. -q. Zheng, Y. Kitaoka, and Y. Onuki,

Physica B: Condensed Matter 281-282, 9-11 (1 June 2000).

Cu-NQR Study of Magnetism and Superconductivity in Ce_1+xCu_2+ySi₂ under Pressure,

Y. Kawasaki, K. Ishida, T. Mito, C. Thessieu, G. -q. Zheng, Y. Kitaoka, K. Asayama, C. Geibel, and F. Steglich,

Physica B: Condensed Matter 281-282, 14-15 (1 June 2000).

Ru NQR Studies in La- and Ge-Doped CeRu₂Si₂,

H. Okura, K. Ishida, Y. Kawasaki, Y. Kitaoka, Y. Yamamoto, Y. Miyako, T. Fukuhara, and K. Maezawa,

Physica B: Condensed Matter 281-282, 61-63 (1 June 2000).

Selective-Over-Doping in Cu-1234 (CuBa₂Ca₃Cu₄O_12-y) System with High T_c>116 K and Low Superconducting Anisotropy 1.6,

Hideo Ihara, Akira Iyo, Yasumoto Tanaka, Norio Terada, Kazuyasuo Tokiwa, Tuneo Watanabe, Yo Tokunaga, Kenji Ishida, Yoshio Kitaoka, and Noriaki Hamada

Physica B: Condensed Matter 292, 238-240 (November 2000).

Unconventional Superconducting Characteristics in the Multilayered High-T_c Cuprate (Cu_0.6C_0.4)Ba₂Ca₃Cu₄O_12+y Probed by ⁶³Cu NMR,

Y. Tokunaga, H. Kotegawa, K. Ishida, Y. Kitaoka, K. Tokiwa, A. Iyo, and H. Ihara,

Physica C: Superconductivity 341-348, 2121-2122 (November 2000).

Anomalous Local Magnetic Shielding Effect at Muon Site in Sr_2.5Ca_11.5Cu₂₄O₄₁ and Ce_0.99Cu_2.02Si₂,

R. Kadono, A. Koda, W. Higemoto, K. Ohishi, K. Kakuta, J. Akimitsu, K. Ishida, Y. Kitaoka, C. Geibel, and F. Steglich,

Physica B: Condensed Matter 289-290, 322-325 (August 2000).

Pseudogap and Superconducting Fluctuations in Bi₂Sr₂CaCu₂O_8+y Probed by ⁶³CuNMR,

Y. Tokunaga, K. Ishida, K. Yoshida, T. Mito, Y. Kitaoka, Y. Nakayama, J. Shimoyama, K. Kishio, O. Narikiyo, and K. Miyake,

Physica B: Condensed Matter 284-288, 663-664 (July 2000).

Spin Fluctuations in Ruthenium Oxides Probed by Ru-NMR,

H. Mukuda, K. Ishida, Y. Kitaoka, R. Kanno, and M. Takano,

Physica B: Condensed Matter 284-288, 1467-1468 (July 2000).

Magnetism of Anomalous A-phase in Ce_1+xCu_2+ySi₂: a SR Study,

A. Koda, W. Higemoto, R. Kadono, K. Ishida, Y. Kitaoka, C. Geibel, and F. Steglich,

Physica B: Condensed Matter 281-282, 16-18 (1 June 2000).

NMR Studies on UPt₃,

Y. Kitaoka, H. Tou, K. Ishida, N. Kimura, Y. Onuki, E. Yamamoto, Y. Haga and K. Maezawa

Physica B: Condensed Matter 281-282, 878-881 (1 June 2000)

Vortex Dynamics in Sr₂RuO₄ Studied by ¹⁷O-NMR,

H. Mukuda, K. Ishida, Y. Kitaoka, Z.Q. Mao, Y. Mori, and Y. Maeno,

Physica B 281&282, 965-966 (2000).

Anisotropic Superconducting Gap in the Spin-Triplet Superconductor Sr₂RuO₄,

K. Ishida, H. Mukuda, Y. Kitaoka, Z.Q. Mao, Y. Mori, and Y. Maeno,

Phys. Rev. Lett. 84, 5387-5390 (2000).

Anisotropic Superconducting Gap in Sr₂RuO₄ Evidenced by a Ru NQR Study,

K. Ishida, H. Mukuda, Y. Kitaoka, Z.Q. Mao, Y. Mori, and Y. Maeno,

Physica B 281&282, 963-964 (2000).

1999

Ru-NMR Study of Pseudo-Metamagnetic Transition in CeRu₂Si₂,

Y. Kawasaki, K. Ishida, Y. Kitaoka, K. Asayama, H. Nakamura, and J. Flouquet

Physica B: Condensed Matter 259-261, 77-78 (January 1999).

Crossover Behavior from Magnetism to Superconductivity in Ce_xCu₂Si₂,

K. Ishida, Y. Kawasaki, K. Tabuchi, K. Kashima, Y. Kitaoka, K. Asayama, C. Geibel, and F. Steglich,

Physica B: Condensed Matter 259-261, 678-680 (January 1999).

NMR Study of High-T_c Superconductors and Related Materials,

K. Ishida, Y. Tokunaga, Y. Kitaoka, G. -Q. Zheng, K. Magishi, H. Mukuda, H. Tou, T. Mito, and K. Asayama

Physica B: Condensed Matter 259-261, 511-516 (January 1999).

Pseudogap Behavior in Single Crystals of Bi₂Sr₂CaCu₂O₈₊,

K. Ishida, Y. Tokunaga, H. Kotegawa, K. Yoshida, T. Mito, Y. Kitaoka, K. Asayama, Y. Nakayama, J. Shimoyama, and K. Kishio.

Physica B: Condensed Matter 259-261, 559-561 (January 1999).

NMR Study of Magnetic Excitations and Pseudogap in HgBa₂Ca₃Cu₄O_y,

Y. Tokunaga, K. Ishida, K. Magishi, S. Ohsugi, G. -q. Zheng, Y. Kitaoka, K. Asayama, A. Iyo, K. Tokiwa, and H. Ihara.

Physica B: Condensed Matter 259-261, 571-572 (January 1999).

¹⁷O NMR Probe of Spin Fluctuations in Triplet Superconductor Sr₂RuO₄,

H. Mukuda, K. Ishida, Y. Kitaoka, K. Asayama, Z. -q. Mao, Y. Mori, and Y. Maeno.

Physica B: Condensed Matter 259-261, 944-946 (January 1999).

Impurity Effect of the Spin-Ladder System SrCu₂O₃,

S. Ohsugi, Y. Kitaoka, Y. Tokunaga, K. Ishida, M. Azuma, Y. Fujishiro, and M. Takano.

Physica B: Condensed Matter 259-261, 1040-1041 (January 1999).

¹⁷O Knight Shift Study in the Superconducting State of Sr₂RuO₄,

H. Mukuda, K. Ishida, Y. Kitaoka, Z.Q. Mao, Y. Mori, and Y. Maeno,

J. Low Temp. Phys. 117, 1587-1591 (1999).

NMR Probe of Magnetism and Superconductivity in Ruthenate Oxides,

Y. Kitaoka, K. Ishida, H. Mukuda, Z.Q. Mao, S. Ikeda, S. Nishizaki, Y. Maeno, R. Kanno, and M. Takano,

Materials Science and Engineering B63, 83-87 (1999),

Spin Fluctuations in the Ruthenium Oxides RuO₂, SrRuO₃, CaRuO₃, and Sr₂RuO₄ Probed by Ru NMR,

H. Mukuda, K. Ishida, Y. Kitaoka, K. Asayama, R. Kanno, and M. Takano,

Phys. Rev. B 60, 12279-12285 (1999).

Photoemission of CeX₂Y₂ and Ce(Pd_1-xCu_x)₃,

S. Imada, M. Tsunekawa, T. Iwasaki, S. Suga, Y. Onuki, F. Iga, M. Kasaya, Y. Kawasaki, K. Ishida, Y. Kitaoka, and K. Asayama,

Journal of Magnetism and Magnetic Materials 177-181, 387-388 (January 1998).

Ru NQR Study in Al-Doped CeRu₂,

Hidekazu Mukuda, Kenji Ishida, Yoshio Kitaoka, and Kunisuke Asayama,

Journal of Physics and Chemistry of Solids 59, 2163-2165 (October 1998).

1998

17O NMR Probe of Spin Fluctuations in Triplet Superconductor Sr₂RuO₄,

H. Mukuda, K. Ishida, Y. Kitaoka, K. Asayama, Z.Q. Mao, Y. Mori, and Y. Maeno,

Physica B 259-261, 944-946 (1999),

Novel Character of Spin Fluctuations in Spin-Triplet Superconductor Sr₂RuO₄: The ¹⁷O Study,

H. Mukuda, K. Ishida, Y. Kitaoka, K. Asayama, Z.Q.Mao, Y. Mori, and Y. Maeno,

J. Phys. Soc. Jpn. 67, 3945-3951 (1998).

Spin-Triplet Superconductivity in Sr₂RuO₄ Identified by ¹⁷O Knight Shift,

K. Ishida, H. Mukuda, Y. Kitaoka, A. Asayama, Z.Q. Mao, Y. Mori, and Y. Maeno,

Nature 396, 658-660 (1998).

1997

Anisotropic Pairing in Superconducting Sr₂RuO₄: Ru NMR and NQR Studies,

K. Ishida, Y. Kitaoka, K. Asayama, S. Ikeda, S. Nishizaki, Y. Maeno, K. Yoshida and T. Fujita,

Phys. Rev. B 56, R505-R508 (1997).

Anisotropic Pairing in Superconducting Sr₂RuO₄ (T_c = 0.7 K),

K. Ishida, Y. Kitaoka, K. Asayama, S. Ikeda, S. Nishizaki, Y. Maeno, K.Yoshida, and T. Fujita,

Physica C 282-287, 1369-1370 (1997).

Spin Fluctuation and Unconventional Pairing in Sr₂RuO₄,

Y. Kitaoka, K. Ishida, K. Asayama, S. Ikeda, S. Nishizaki, Y. Maeno, K. Yoshida, and T. Fujita,

Physica C 282-287, 210-213 (1997).

Ru NMR and NQR Studies in Superconducting Sr₂RuO₄ with T_c = 0.7 K,

K. Ishida, Y. Kitaoka, K. Asayama, S. Ikeda, Y. Maeno, and T. Fujita,

Czechoslovak J. Phys. 46, Suppl. S2, 1093-1094 (1996).

Publications before 1997 are under construction.