氏名 小手川 恒(こてがわ ひさし)
連絡先
〒657-8501 神戸市灘区六甲台町1-1 神戸大学理学研究科
Tel/Fax : 078-803-5644
出身地 大分
略歴
2002年 大阪大学基礎工学研究科博士後期課程 修了
2002~ 日本学術振興会特別研究員
2003~ 岡山大学理学部 助手
2007~ 岡山大学自然科学研究科 助教
2008~ 神戸大学理学研究科 准教授
その間 2010年 4~10月 グルノーブルCEA 研究員(フランス)
専門
強相関電子系の物性測定(NMR、マクロ測定)、高圧実験
担当授業
物性物理学Ⅰ(後期)
物理学B3(力学・熱力学)(後期)
物理学実験Ⅰ(後期)
低温物性学(大学院、前期の半分)
趣味
サッカー観戦(特にJリーグ)、カメラ
発表論文一覧
開く/たたむ
(107)「73Ge-Nuclear Magnetic Resonance/Nuclear Quadrupole Resonance Investigation of Magnetic Properties of URhGe」
H. Kotegawa, K. Fukumoto, T. Toyama, H. Tou, H. Harima, A. Harada, Y. Kitaoka, Y. Haga, E. Yamamoto, Y. Onuki, K. M. Itoh, and E. E. Haller
J. Phys. Soc. Jpn. 84, 054710 (2015).
(106)「Detection of an Unconventional Superconducting Phase in the Vicinity of the Strong First-Order Magnetic Transition in CrAs Using 75As-Nuclear Quadrupole Resonanc」
H. Kotegawa, S. Nakahara, R. Akamatsu, H. Tou, H. Sugawara, and H. Harima
Phys. Rev. Lett. 114, 117002 (2015).
(105)「Ising-Type Ferromagnetic Ground State Driven by Anisotropic c–f Hybridization in CeRu2Al2B」
H. Matsuno, H. Kotegawa, E. Matsuoka, Y. Tomiyama, H. Sugawara, and H. Tou
J. Phys. Soc. Jpn. 83, 103709 (2014).
(104)「Superconductivity of 2.2 K under Pressure in Helimagnet CrAs」
H. Kotegawa, S. Nakahara, H. Tou, H. Sugawara
J. Phys. Soc. Jpn. 83, 093702 (2014). Papers of Editors' Choice
(103)「27Al and 93Nb NMR/NQR Studies on the Pr-Based Heavy Fermion System PrNb2Al20」
T. Kubo, H. Kotegawa, H. Tou, R. Higashinaka, A. Nakama, Y. Aoki, H. Sato
JPS Conf. Proc. 3, 012031 (2014).
(102)「Structural Phase Transition and Superconductivity in LaPt2Si2: 139La- and 195Pt-NMR Studies」
T. Kubo, Y. Kizaki, H. Kotegawa, H. Tou, Y. Nagano, N. Araoka, A. Mitsuda, H. Wada
JPS Conf. Proc. 3, 017031 (2014).
(101)「Strong suppression of coherence effect and appearance of pseudogap in the layered nitride superconductor LixZrNCl: 91Zr- and 15N-NMR studies」
H. Kotegawa, S. Oshiro, Y. Shimizu, H. Tou, Y. Kasahara, T. Kishiume, Y. Taguchi, and Y. Iwasa
Phys. Rev. B 90, 020503(R) (2014).
(100)「Pressure–Temperature–Magnetic Field Phase Diagram of Ferromagnetic Kondo Lattice CeRuPO」
H. Kotegawa, T. Toyama, S. Kitagawa, H. Tou, R. Yamauchi, E. Matsuoka, and H. Sugawara
J. Phys. Soc. Jpn. 82 (2013) 123711.
(99)「Strong Coupling of Rattling Phonon to Conduction Electrons in Semimetallic Type-I Clathrate Ba8Ga16Sn30」
H. Tou, K. Sonoda, K. Furumoto, H. Kotegawa, K. Suekuni, M. A. Avila, T. Takabatake
J. Phys. Soc. Jpn. 82 (2013) 114603.
(98)「Pressure-Induced Superconductivity in Mineral Calaverite AuTe2」
S. Kitagawa, H. Kotegawa, H. Tou, H. Ishii, K. Kudo, M. Nohara, and H. Harima
J. Phys. Soc. Jpn. 82 (2013) 113704.
(97)「Pressure evolution of the metamagnetic transition in UCoAl As measured using 59Co NMR」
H. Kotegawa, H. Nohara, H. Tou, T. D. Matsuda, E. Yamamoto, Y. Haga, Z. Fisk, Y. Onuki, D. Aoki, J. Flouquet
J. Korean Phys. Soc. 63, (2013) 341-344.
(96)「Evidence of a rattling transition in the caged compounds LaRu2Zn20 and LaIr2Zn20: 139La NMR studies」
H. Tou, K. Asaki, H. Kotegawa, T. Onimaru, K. T. Matsumoto, Y. F. Inoue, T. Takabatake
J. Korean Phys. Soc. 63, (2013) 650-653.
(95)「Cu-NMR studies of the heavy-fermion compound CeCu6 under high magnetic fields」
K. Kuroda, K. Morita, H. Kotegawa, H. Sugawara, H. Tou
J. Korean Phys. Soc. 63, (2013) 1862-1865.
(94)「Magnetic excitations in iron chalcogenide superconductors」
H. Kotegawa and M. Fujita
Sci. Tec. Adv. Mat. 13, (2012) 054302.
(93)「NMR investigation of the iron-based superconductors Ca4(Mg,Ti)3Fe2As2O8-y and Ca5(Sc,Ti)4Fe2As2O11-y」
Y. Tomita, H. Kotegawa, Y. Tao, H. Tou, H. Ogino, S. Horii, K. Kishio, and J. Shimoyama
Phys. Rev. B 86, (2012) 134527.
(92)「Weak Spin Fluctuation with Finite Wave Vector and Superconducting Gap Symmetry in KxFe2-ySe2: 77Se Nuclear Magnetic Resonance」
H. Kotegawa, Y. Tomita, H. Tou, Y. Mizuguchi, H. Takeya, and Y. Takano
J. Phys. Soc. Jpn. 81, (2012) 104712.
(91)「Pressure Study of BiS2-Based Superconductors Bi4O4S3 and La(O,F)BiS2」
H. Kotegawa, Y. Tomita, H. Tou, H. Izawa, Y. Mizuguchi, O. Miura, S. Demura, K. Deguchi, and Y. Takano
J. Phys. Soc. Jpn. 81, (2012) 103702. Papers of Editors' Choice
(90)「Ising-Type Magnetic Anisotropy Derived by Γ71 Crystal Electric Field Ground State in Tetragonal CeRu2Al2B: 11B and 27Al NMR Studies」
H. Matsuno, H. Nohara, H. Kotegawa, E. Matsuoka, Y. Tomiyama, H. Sugawara, H. Harima, and H. Tou
J. Phys. Soc. Jpn. 81, (2012) 073705.
(89)「Decoupling between Field-Instabilities of Antiferromagnetism and Pseudo-Metamagnetism in Rh-Doped CeRu2Si2 Kondo Lattice」
D. Aoki, C. Paulsen, H. Kotegawa, F. Hardy, C. Meingast, P. Haen, M. Boukahil, W. Knafo, E. Ressouche, S. Raymond, and J. Flouquet
J. Phys. Soc. Jpn. 81, (2012) 034711. Papers of Editors' Choice
(88)「NMR Evidence of Freezing of Rattling Motion in LaIr2Zn20 and LaRu2Zn20」
K. Asaki, H. Kotegawa, H. Tou, T. Onimaru, K. T. Matsumoto, Y. F. Inoue, and T. Takabatake
J. Phys. Soc. Jpn. 81, (2012) 023711
(87)「Pressure-Induced Structural Phase Transitions in UIr」
H. Kotegawa, S. Araki, T. Akazawa, A. Hori, Y. Irie, S. Fukushima, H. Hidaka, T. C. Kobayashi, K. Takeda, Y. Ohishi, K. Murata, E. Yamamoto, S. Ikeda, Y. Haga, and Y. Onuki
Phys. Rev. B 84, (2011) 054524.
(86)「Ferromagnetic Quantum Critical Endpoint in UCoAl 」
D. Aoki, T. Combier, V. Taufour, T. D. Matsuda, G. Knebel, H. Kotegawa, J. Flouquet
J. Phys. Soc. Jpn. 80, (2011) 094711
(85)「Strong Longitudinal Magnetic Fluctuations near Critical End Point in UCoAl: A 59Co-NMR Study」
H. Nohara, H. Kotegawa, H. Tou, T. D. Matsuda, E. Yamamoto, Y. Haga, Z. Fisk, Y. Onuki, D. Aoki, J. Flouquet
J. Phys. Soc. Jpn. 80, (2011) 093707
(84) 「Evolution toward Quantum Critical End Point in UGe2」
H. Kotegawa, V. Taufour, D. Aoki, G. Knebel, and J. Flouquet
J. Phys. Soc. Jpn. 80, (2011) 083703. Papers of Editors' Choice
(83)「Possible Mass Enhancement by Multipole Fluctuations Excited via the Singlet-Triplet Crystal Electric Field States in PrOs4Sb12: Sb-NMR Studies Using a Single Crystal」
H. Tou, Y. Inaoka, M. Doi, M. Sera, K. Asaki, H. Kotegawa, H. Sugawara, and H. Sato
J. Phys. Soc. Jpn. 80, (2011) 074703.
(82)「RF Surface Impedance and 77Se-NMR Studies of FeSe: Effect of the Sample Quality」
H. Nohara, H. Kotegawa, Y. Hara, H. Tou, Y. Mizuguchi, and Y. Takano
J. Phys. Soc. Jpn. 80, Suppl. (2011) SA120.
(81)「Se/Te-NMR Study of Fe(Te1-xSex)」
Y. Hara, H. Kotegawa, H. Nohara, H. Tou, Y. Mizuguchi, and Y. Takano
J. Phys. Soc. Jpn. 80, Suppl. (2011) SA119.
(80)「9Be-NMR Spin-Lattice Relaxation Rate in Heavy-Fermion Superconductor UBe13」
K. Morita, Y. Hara, Z. Sakano, H. Kotegawa, H. Tou, Y. Haga, and Y. Onuki
J. Phys. Soc. Jpn. 80, Suppl. (2011) SA099.
(79)「 NMR Studies of Ba8Ga16Sn30 Clathrates」
H. Tou, K. Sonoda, Y. Nishikawa, H. Kotegawa, H. Suekuni, T. Onimaru, and T. Takabatake
J. Phys. Soc. Jpn. 80, Suppl. (2011) SA039.
(78) 「Heat Capacity and ac-Susceptibility Measurements of SmOs4Sb12 under High Pressure」
T. C. Kobayashi, K. Miyazawa, K. Tabira, Y. Ikeda, S. Araki, H. Kotegawa, H. Sugawara, D. Kikuchi, and H. Sato
J. Phys. Soc. Jpn. 80, Suppl. (2011) SA034.
(77)「Anomalous Behavior of Itinerant Weak Ferromagnet LaFe4As12 in NMR/NQR Studies」
K. Asaki, H. Kotegawa, H. Tou, S. Tatsuoka, R. Higashinaka, T. Namiki, H. Sato
J. Phys. Soc. Jpn. 80, Suppl. (2011) SA033.
(76) 「Superconductivity Reinforced by Magnetic Field and the Magnetic Instability in Uranium Ferromagnets」
D. Aoki, T. D. Matsuda, F. Hardy, C. Meingast, V. Taufour, E. Hassinger, I. Sheikin, C. Paulsen, G. Knebel, H. Kotegawa, and J. Flouquet
J. Phys. Soc. Jpn. 80, Suppl. (2011) SA008.
(75)「Possible Superconducting Symmetry and Magnetic Correlations in K0.8Fe2Se2: A 77Se-NMR Study」
H. Kotegawa, Y. Hara, H. Nohara, H. Tou, Y. Mizuguchi, H. Takeya, Y. Takano
Journal of the Physical Society of Japan 80, (2011) 043708.
(74) Pressure Dependence of Superconducting Transition Temperature on Perovskite-Type Fe-Based Superconductors and NMR Study of Sr2VFeAsO3
H. Kotegawa, Y. Tao, H. Tou, K. Murata, H. Ogino, S. Horii, K. Kishio, and J. Shimoyama
Journal of the Physical Society of Japan 78, (2011) 014712.
(73) 77Se-NMR study of Co-substituted FeSe
H. Kotegawa, Y. Hara, S. Masaki, H. Tou, Y. Mizuguchi, Y. Takano
Physicas C 470, (2010) S426.
(72) 15N NMR studies of layered nitride superconductor LixZrNCl
H. Tou, S. Oshiro, H. Kotegawa, Y. Taguchi, Y. Kishiume, Y. Kasahara, Y. Iwasa
Physicas C 470, (2010) S658.
(71) Anion height dependence of Tc for the Fe-based superconductor
Y. Mizuguchi, Y. Hara, K. deguchi, S. Tsuda, T. Yamaguchi, K. Takeda, H. Kotegawa, H. Tou, Y. Takano
Superconductor Scienece & Technology 23, (2010) 054013.
(70) Superconductivity in a new iron pnictide oxide (Fe2As2)(Sr4(Mg, Ti)2O6)
S. Sato, H. Ogino, N. Kawaguchi, Y. Katsura, K. Kishio, J. Shimoyama, H. Kotegawa, and H. Tou
Superconductor Scienece & Technology 23, (2010) 045001.
(69) Contrasting Pressure Effects in Sr2VFeAsO3 and Sr2ScFePO3
H. Kotegawa, T. Kawazoe, H. Tou, K. Murata, H. Ogino, K. Kishio, and J. Shimoyama
Journal of the Physical Society of Japan 78, (2009) 123707.
(68) Effect of Uniaxial Stress for Pressure-Induced Superconductor SrFe2As2
H. Kotegawa, T. Kawazoe, H. Sugawara, K. Murata, and H. Tou
Journal of the Physical Society of Japan 78, (2009) 083702.
(67) Precise Pressure Dependence of The Superconducting Transition Temperature
of FeSe: Resistivity and 77Se-NMR Study
S. Masaki, H. Kotegawa, Y. Hara, H. Tou, K. Murata, Y. Mizuguchi, Y. Takano
Journal of the Physical Society of Japan 78, (2009) 063704.
(66) Pressure and magnetic field tuned quantum critical point in the Kondo
antiferromagnet CePtZn
S.K. Dhar, R. Kulkarni, H. Hidaka, Y. Toda, H. Kotegawa, T.C. Kobayashi, P. Manfrinetti, and A. Provino
J. Phys.: Condens. Matter 21, 156001 (2009).
(65) Pressure Effect on Yb-Based Strongly Correlated Electron Systems
T. Mito, M. Otani, M. Nakamura, T. Koyama, S. Wada, H. Kotegawa, T.C. Kobayashi,
B. Idzikowski, M. Reiffers, J.L. Sarrao
ACTA PHYSICA POLONICA A 115, 47-52 (2009).
(64) Abrupt Emergence of Pressure-Induced Superconductivity of 34K in SrFe2As2: A Resistivity Study under Pressure,
H. Kotegawa, H. Sugawara, and H. Tou,
Journal of the Physical Society of Japan 78, 013709 (2009). Papers of Editors' Choice
(63) High Pressure NQR Measurement in CeCu2Si2 up to Sudden Disappearance of Superconductivity,
K. Fujiwara, Y. Hata, K. Kobayashi, K. Miyoshi, J. Takeuchi, Y. Shimaoka,
H. Kotegawa, T. C. Kobayashi, C. Geibel, F. Steglich,
Journal of the Physical Society of Japan 77, 123711 (2008). Papers of Editors' Choice
(62) Evidence for Unconventional Superconductivity in Arsenic-Free Iron-Based
Superconductor FeSe : A 77Se-NMR Study
H. Kotegawa, S. Masaki, Y. Awai, H. Tou, Y. Mizuguchi, and Y. Takano,
Journal of the Physical Society of Japan 77, 113703 (2008).
(61) Sb-NQR Study of PrOs4Sb12 under High Pressure,
S. Kawasaki, K. Katayama, M. Nishiyama, H. Kotegawa, T. C. Kobayashi, H.
Sugawara, D. Kikuchi, H. Sato, and G.-q. Zheng,
Journal of the Physical Society of Japan
77, Supplement A 330-332 (2008).
(60) de Haas van Alphen Study of the Pr-based Filled Skutterudite PrOs4P12,
H. Sugawara, Y. Iwahashi, K. Magishi, T. Saito, K. Koyama, H. Harima, D.
Kikuchi, H. Sato, T. Endo, R. Settai, Y. Onuki, N. Wada, H. Kotegawa, and
T. C. Kobayashi,
Journal of the Physical Society of Japan
77, Supplement A 108-113 (2008).
(59) Anomalous Kondo Effect and Ordered State in Heavy Fermion System
SmOs4Sb12: Resistivity, Sb-NQR, and Magnetization Measurements under High Pressure,
H. Kotegawa, K. Tabira, Y. Irie, H. Hidaka, T. C Kobayashi, D. Kikuchi,
K. Tanaka, S. Tatsuoka, H. Sugawara, and H. Sato,
Journal of the Physical Society of Japan 77, Supplement A 90-95 (2008).
(58) Evolution of transport and low-energy spin fluctuations in YbXCu4 (X = Au and Pd) with the application of magnetic field,
A. Yamamoto, T. Yokoyama, S. Wada, K. Tabira, H. Kotegawa, T.C. Kobayashi,
and J.L. Sarrao,
Physica B 403, 772-774 (2008).
(57) Observation of charge
fluctuations in skutterudite compounds through an Sb-NQR measurement,
H.
Kotegawa, Y. Irie, H. Hidaka, T.C. Kobayashi, D. Kikuchi, H. Sugawara,
and H. Sato,
Physica B 403, 1205-1207 (2008).
(56) 73Ge-NQR study of heavy-fermion compound CeNi2Ge2,
S. Kawasaki, T. Sada, T. Miyoshi, H. Kotegawa, H. Mukuda, Y. Kitaoka, T.C. Kobayashi, T. Fukuhara, K. Maezawa, K.M. Itoh, and E.E Haller,
Journal of Magnetism and Magnetic Materials 310, 590-592 (2007).
(55) Effect of uniaxial stress on pressure-induced metal-insulator transition in PrFe4P12,
H. Hidaka, N. Wada, H. Kotegawa, T.C. Kobayashi, D. Kikuchi, H. Sato, and
H. Sugawara
Journal of Magnetism and Magnetic Materials 310, e228-e230 (2007).
(54) High-quality single crystal growth and physical properties in a ferromagnet UIr,
E. Yamamoto, Y. Haga, S. Ikeda, T.D. Matsuda, T. Akazawa, H. Kotegawa,
T.C. Kobayashi, and Y. Onuki,
Journal of Magnetism and Magnetic Materials 310, e123-e125 (2007).
(53) Muon spin rotation study of magnetism in multilayer HgBa2Ca4Cu5Oy
superconductor,
K. Tokiwa, S. Mikusu, W. Higemoto, K. Nishiyama, A. Iyo, Y. Tanaka, H.
Kotegawa, H. Mukuda, and Y. Kitaoka,
Physica C 460-462, 892-895 (2007).
(52) Uniform mixing of high-Tc superconductivity and antiferromagnetism on a single CuO2 plane in five-layered cuprates,
H. Mukuda, M. Abe, Y. Kitaoka, H. Kotegawa, K. Tokiwa, T. Watanabe, A.
Iyo, H. Kito, Y. Tanaka, and Y. Kodama,
Physica C 460-462, 36-39 (2007).
(51) Connection between Charge Fluctuations and the Coherent Temperature in the Heavy-Fermion System SmOs4Sb12: A 121,123Sb-NQR Study,
H. Kotegawa, H. Hidaka, T.C. Kobayashi, D. Kikuchi, H. Sugawara, and H.
Sato,
Physical Review Letters 99, 156408-1-156408-4 (2007).
(50) Nonmagnetic indenter-type high-pressure cell for magnetic measurements,
T.C. Kobayashi, H. Hidaka, H. Kotegawa, K. Fujiwara, and M.I. Eremets,
Review of Scientific Instruments 78, 023909-1-023909-5 (2007).
(49) Pressure-Temperature Phase Diagram and Superconductivity in UIr,
T.C. Kobayashi, A. Hori, S. Fukushima, H. Hidaka, H. Kotegawa, T. Akazawa, K. Takeda, Y. Ohishi, and E. Yamamoto,
Journal of the Physical Society of Japan 76, 051007-1-051007-11 (2007).
(48) Anisotropic behavior in resistivity of RAgSb2 (R=Ce, La),
Y. Watanabe, Y. Inada, H. Hidaka, H. Kotegawa, T.C. Kobayashi, T.D. Matsuda,
and D. Aoki
Physica B 378-380, 827-828 (2006).
(47) Pressure effect on heavy fermion compound YbCu5,
T. Mito, M. Nakamura, M. Shimoide, M. Otani, T. Koyama, S. Wada, H. Kotegawa, T.C. Kobarashi, B. Idzikowski, M. Reiffers, and J.L. Sarrao,
Physica B 378-380, 732-733 (2006).
(46) Uniform mixing of high-Tc superconductivity and antiferromagnetism in HgBa2Ca4Cu5O12+ホエ,
H. Mukuda, M. Abe, Y. Araki, H. Kotegawa, Y. Kitaoka, K. Tokiwa, T. Watanabe,
A. Iyo, and Y. Tanaka,
Physica B 378-380, 457-458 (2006).
(45) Pressure-induced superconductivity in CeNiGe3,
H. Kotegawa, T. Miyoshi, K. Takeda, S. Fukushima, H. Hidaka, K. Tabata,
T.C. Kobayashi, M. Nakashima, A. Thamizhavel, R. Settai, and Y. Onuki,
Physica B 378-380, 419-420 (2006).
(44) Pressure-induced superconductivity in ferromagnet UIr without inversion
symmetry,
T.C. Kobayashi, S. Fukushima, H. Hidaka, H. Kotegawa, T. Akazawa, E. Yamamoto,
Y. Haga, R. Settai, and Y. Onuki,
Physica B 378-380, 355-358 (2006).
(43) 115In-NQR study of antiferromagnetism and superconductivity in CeRhIn5
and CeIn3 under pressure,
S. Kawasaki, M. Yashima, H. Kotegawa, T. Mito, Y. Kawasaki, G.-q. Zheng,
Y. Kitaoka, H. Shishido, S. Araki, D. Aoki, Y. Haga, R. Settai, and Y.
Onuki,
Journal of Physics and Chemistry of Solids 67, 497-499 (2006).
(42) Anisotropic Residual Resistivity Under High Pressure in UIr,
A. Hori, H. Hidaka, H. Kotegawa, T.C. Kobayashi, T. Akazawa, S. Ikeda, E.Yamamoto, Y. Haga, R. Settai, and Y. Onuki,
Journal of the Physical Society of Japan 75, Supplement 82-84 (2006).
(41) Transport and Magnetic Properties of Pressure-Induced Insulating Phase in PrFe4P12,
H. Hidaka, H. Kotegawa, S. Fukushima, N. Wada, T.C. Kobayashi, H. Harima, K. Fujiwara, D. Kikuchi, H. Sato, and H. Sugawara,
Journal of the Physical Society of Japan 75, 094709-1-094709-8 (2006).
(40) Pressure-Induced Superconductivity Emerging from Antiferromagnetic Phase
in CeNiGe3,
H. Kotegawa, K. Takeda, T. Miyoshi, S. Fukushima, H. Hidaka, T.C. Kobayashi,
T. Akazawa, Y. Ohishi, M. Nakashima, A. Thamizhavel, R. Settai, and Y.
Onuki,
Journal of the Physical Society of Japan 75, 044713-1-044713-6 (2006).
(39) Evidence for Unconventional Superconducting Fluctuations in Heavy-Fermion
Compound CeNi2Ge2,
S. Kawasaki, T. Sada, T. Miyoshi, H. Kotegawa, H. Mukuda, Y. Kitaoka, T.C.
Kobayashi, T. Fukuhara, K. Maezawa, K.M. Itoh, and E.E. Haller,
Journal of the Physical Society of Japan 75, 043702-1-043702-4 (2006).
(38) Pressure-induced charge ordering of LiV2O4,
K. Takeda, H. Hidaka, H. Kotegawa, T.C. Kobayashi, K. Shimizu, H. Harima, K. Fujiwara, K. Miyoshi, J. Takeuchi, Y. Ohishi, T. Adachi, M. Takata, E. Nishibori, M. Sakata, T. Watanuki, and O. Shimomura,
Physica B 359-361, 1312-1314 (2005).
(37) Pressure-induced superconductivity in UIr without inversion symmetry,
T. Akazawa, H. Hidaka, H. Kotegawa, T.C. Kobayashi, T. Fujiwara, E. Yamamoto,
Y. Haga, R. Settai, and Y. Onuki,
Physica B 359-361, 1138-1140 (2005).
(36) Evidence for the microscopic coexistence of superconductivity and
ferromagnetism in UGe2: 73Ge-NMR/NQR study,
A. Harada, H. Kotegawa, Y. Kawasaki, G.-q. Zheng, Y. Kitaoka, E. Yamamoto,
Y. Haga, Y. Onuki, K. Itoh, and E.E. Haller,
Physica B 359-361, 1057-1059 (2005).
(35) Metal-insulator transition under high pressure in PrFe4P12,
H. Hidaka, I. Ando, H. Kotegawa, T.C. Kobayashi, H. Harima, M. Kobayashi, H. Sugawara, and H. Sato,
Physica B 359-361, 886-888 (2005).
(34) 121Sb-NMR studies of single-crystal PrOs4Sb12,
H. Tou, M. Doi, M. Sera, M. Yogi, Y. Kitaoka, H. Kotegawa, G.-q. Zheng,
H. Harima, H. Sugawara, and H. Sato,
Physica B 359-361, 892-894 (2005).
(33) 115In-NQR study of antiferromagnetism and superconductivity near magnetic
criticality in CeIn3,
S. Kawasaki, T. Mito, Y. Kawasaki, H. Kotegawa, G.-q. Zheng, Y. Kitaoka,
H. Shishido, S. Araki, R. Settai, and Y. Onuki,
Physica B 359-361, 413-415 (2005).
(32) NMR/NQR experiments on heavy-fermion systems and superconductors,
Y. Kitaoka, S. Kawasaki, Y. Kawasaki, H. Kotegawa, and T. Mito,
Physica B 359-361, 341-348 (2005).
(31) Novel phase diagram of superconductivity and ferromagnetism in UGe2: a 73Ge-NQR study under high pressure,
Y. Kitaoka, H. Kotegawa, A. Harada, S. Kawasaki, Y. Kawasaki, Y. Haga,
E. Yamamoto, Y. Onuki, K.M. Itoh, E.E. Haller, and H. Harima,
Journal of Physics: Condensed Matter 17, S975-S986 (2005).
(30) Cooperative Phenomenon of Ferromagnetism and Unconventional Superconductivity
in UGe2: A 73Ge-NQR Study under Pressure,
A. Harada, S. Kawasaki, H. Kotegawa, Y. Kitaoka, Y. Haga, E. Yamamoto,
Y. Onuki, K.M. Itoh, E.E. Haller, and H. Harima,
Journal of the Physical Society of Japan 74, 2675-2678 (2005).
(29) Heavy Fermion Compound SmOs4Sb12 in Vicinity of Ferromagnetic Critical
Point,
H. Kotegawa, H. Hidaka, Y. Shimaoka, T. Miki, T.C. Kobayashi, D. Kikuchi, H. Sugawara, and H. Sato,
Journal of the Physical Society of Japan 74, 2173-2176 (2005).
(28) Novel Phase Transition Near the Quantum Critical Point in the Filled-Skutterudite
Compound CeOs4Sb12: An Sb-NQR Study,
M. Yogi, H. Kotegawa, G.-q. Zheng, Y. Kitaoka, S. Ohsaki, H. Sugawara,
and H. Sato,
Journal of the Physical Society of Japan 74, 1950-1953 (2005).
(27) Evidence for Uniform Coexistence of Ferromagnetism and Unconventional Superconductivity in UGe2: A 73Ge-NQR Study under Pressure,
H. Kotegawa, A. Harada, S. Kawasaki, Y. Kawasaki, Y. Kitaoka, Y. Haga,
E. Yamamoto, Y. Onuki, K. M. Itoh, E. E. Haller, and H. Harima,
Journal of the Physical Society of Japan 74, 705-711 (2005).
(26) Pressure-induced metal-insulator transition in the filled skutterudite
PrFe4P12,
H. Hidaka, I. Ando, H. Kotegawa, T.C. Kobayashi, H. Harima, M. Kobayashi, H. Sugawara, and H. Sato,
Physical Review B 71, 073102-1-073102-4 (2005).
(25) Static and dynamical properties in the Pr-based filled skutterudite compound
PrFe4P12 revealed by a 31P-NMR study,
K. Ishida, H. Murakawa, K. Kitagawa, Y. Ihara, H. Kotegawa, M. Yogi, Y.
Kitaoka, B.-L. Young, M.S. Rose, D.E. MacLaughlin, H. Sugawara, T.D. Matsuda,
Y. Aoki, H. Sato, and H. Harima,
Physical Review B 71, 024424-1-024424-9 (2005).
(24) Coexistence of antiferromagnetic order and superconductivity in five-layered
Hg-based high-Tc cuprate,
H. Kotegawa, Y. Kitaoka, Y. Araki, Y. Tokunaga, G.-q. Zheng, K. Tokiwa,
T. Watanabe, A. Iyo, H. Kito, Y. Tanaka, and H. Ihara,
Physica C 408-410, 761-763 (2004).
(23) The microscopic coexistence of superconductivity and ferromagnetism
in UGe2: 73Ge-NMR/NQR study,
H. Kotegawa, S. Kawasaki, A. Harada, Y. Kawasaki, K. Okamoto, G.-q. Zheng, Y. Kitaoka, E. Yamamoto, Y. Haga, Y. Onuki, K.M. Itoh, and E.E. Haller,
Journal of Magnetism and Magnetic Materials 272-276, E27-E28 (2004).
(22) Sb-NQR study of the Kondo semiconductor CeOs4Sb12,
M. Yogi, H. Kotegawa, G.-q. Zheng, Y. Kitaoka, S. Osaki, H. Sugawara, and
H. Sato,
Journal of Magnetism and Magnetic Materials 272-276, E45-E46 (2004).
(21) Novel Phase Separation and Spin Dynamics of Lightly Doped La2-xSr2CuO4 Probed by La-Nuclear Quadrupole Resonance,
K. Ishida, H. Aya, Y. Tokunaga, H. Kotegawa, Y. Kitaoka, M. Fujita, and
K. Yamada,
Physical Review Letters 92, 257001-1-257001-4 (2004).
(20) Pressure-induced Superconductivity in UIr,
T. Akazawa, H. Hidaka, H. Kotegawa, T.C. Kobayashi, T. Fujiwara, E. Yamamoto, Y. Haga, R. Settai, and Y. Onuki,
Journal of the Physical Society of Japan 73, 3129-3134 (2004).
(19) New Superconducting and Magnetic Phases Emerge on the Magnetic Criticality
in CeIn3,
S. Kawasaki, T. Mito, Y. Kawasaki, H. Kotegawa, G.-q. Zheng, Y. Kitaoka, H. Shishido, S. Araki, R. Settai, and Y. Onuki,
Journal of the Physical Society of Japan 73, 1647-1650 (2004).
(18) Coexistence of superconductivity and antiferromagnetism in multilayered high-Tc superconductor HgBa2Ca4Cu5Oy: Cu-NMR study,
H. Kotegawa, Y. Tokunaga, Y. Araki, G.-q. Zheng, Y. Kitaoka, K. Tokiwa,
K. Ito, T. Watanabe, A. Iyo, Y. Tanaka, and H. Ihara,
Physical Review B 69, 014501-1-014501-6 (2004).
(17) Unusual Superconductivity in Skutterudite Compound PrOs4Sb12,
H. Kotegawa, M. Yogi, Y. Imamura, G.-q. Zheng, Y. Kitaoka, S. Ohsaki, H.
Sugawara, Y. Aoki, and H. Sato,
Acta Physica Polonica B 34, 1003-1006 (2003).
(16) Microscopic coexistence of antiferromagnetism and superconductivity
in HgBa2Ca4Cu5Oy: Cu-NMR study,
H. Kotegawa, Y. Tokunaga, Y. Araki, G.-q. Zheng, Y. Kitaoka, K. Tokiwa, T. Watanabe, A. Iyo, H. Kito, Y. Tanaka, and H. Ihara,
Physica C 388-389, 237-238 (2003).
(15) Unconventional superconductivity in ferromagnetic UGe2: a 73Ge nuclear magnetic resonance/nuclear quadrupole resonance study,
H. Kotegawa, S. Kawasaki, A. Harada, Y. Kawasaki, K. Okamoto, G.-q. Zheng,
Y. Kitaoka, E. Yamamoto, Y. Haga, Y. Onuki, K.M. Itoh, and E.E. Haller,
Journal of Physics: Condensed Matter 15, S2043-S2046 (2003).
(14) Sb-NQR probe for superconducting properties in the Pr-based filled-skutterudite
compound PrRu4Sb12,
M. Yogi, H. Kotegawa, Y. Imamura, G.-q. Zheng, Y. Kitaoka, H. Sugawara,
and H. Sato,
Physical Review B 67, 180501-1-18501-4 (2003).
(13) Evidence for Unconventional Strong-Coupling Superconductivity in PrOs4Sb12:
An Sb Nuclear Quadrupole Resonance Study,
H. Kotegawa, M. Yogi, Y. Imamura, Y. Kawasaki, G.-q. Zheng, Y. Kitaoka, S. Ohsaki, H. Sugawara, Y. Aoki, and H. Sato,
Physical Review Letters 90, 027001-1-027001-4 (2003).
(12) Evidence for strong coupling s-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 378-381, 25-32 (2002).
(11) Strong coupling s-wave superconductivity in MgB2 : 11B-NMR Study of
MgB2 and Al-doped MgB2,
H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka, N. Nakagawa, H. Takagiwa,
and J. Akimitsu,
Journal of the Physical Society of Japan 71, Supplement 332-334 (2002).
(10) 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, and J. Akimitsu,
Physical Review B 65, 064516-1-064516-6 (2002).
(9) Superconducting and magnetic characteristics in multilayered high-Tc
cuprates TlBa2Ca2Cu3O10-y with Tc =130 K probed by Cu- and Tl-NMR :
why Tc can be so high,
H. Kotegawa, Y. Tokunaga, K. Ishida, G.-q. Zheng. Y. Kitaoka, A. Iyo, Y.
Tanaka, and H, Ihara,
Physical Review B 65, 184504-1-184504-4 (2002).
(8) NMR Study of Carrier Distribution and Superconductivity in Multilayered
High-Tc Cuprates,
H. Kotegawa, Y. Tokunaga, K. Ishida, G.-q. Zheng. Y. Kitaoka, H. Kito,
A. Iyo, H. Ihara, K. Tanaka, K. Tokiwa, and T. Watanabe,
Journal of Physics and Chemistry of Solids 62, 171-175 (2001).
(7) Coexistence of Magnetic ordering and Superconductivity in Magnetic
Superconductor RuSr2YCu2O8 revealed by 63Cu-NMR,
Y. Tokunaga, H. Kotagawa, K. Ishida, Y. Kitaoka, H. Takagiwa, and J. Akimitsu,
Physica C 364-365, 379-382 (2001).
(6) Evidence for Strong-coupling S-wave Superconductivity in MgB2 : 11B NMR
Study,
H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka, and J. Akimitsu,
Physical Review Letters 87, 127001-1-127001-4 (2001).
(5) Unusual magnetic and superconducting characteristics in multilayered high-Tc cuprates: 63Cu-NMR study,
H. Kotegawa, Y. Tokunaga, K. Ishida, G.-q. Zheng. Y. Kitaoka, H. Kito,
A. Iyo, K. Tokiwa, T. Watanabe, and H, Ihara,
Physical Review B 64, 064515-1-064515-5 (2001).
(4) NMR Evidence for Coexistence of Superconductivity and Ferromagnetic Component
in Magnetic Superconductor RuSr2YCu2O8 : 99,101Ru- and 63Cu-NMR,
Y. Tokunaga, H. Kotagawa, K. Ishida, Y. Kitaoka, H. Takagiwa, and J. Akimitsu,
Physical Review Letters 86, 5767-5770 (2001).
(3) Unconventional superconducting characteristics in the mulyilayered high-Tc cuprate (Cu0.6C0.4)Ba2Ca3Cu4O12+y probed by 63Cu NMR,
Y. Tokunaga, H. Kotagawa, K. Ishida, Y. Kitaoka, K. Tokiwa, A. Iyo, and
H. Ihara,
Physica C 341-348, 2121-2122 (2000).
(2) Carrier distribution and superconductivity in multilayered high-Tc
cuprates proved by 63Cu NMR,
Y. Tokunaga, H. Kotegawa, K. Ishida, G.-q. Zheng, Y. Kitaoka, K. Tokiwa,
A. Iyo, and H. Ihara,
Journal of Low Temperature Physics 117, 473-474 (1999).
(1) Pseudogap behavior in single crystals of Bi2Sr2CaCu2O8+δ,
K. Ishida, Y. Tokunaga, H. Kotegawa, K. Yoshida, T. Mito, Y. Kitaoka, K. Asayama, Y. Nakayama, J. Simomura, and K. Kishio,
Physica B 259-261, 559-561 (1999).