神戸大学 理学研究科 物理学専攻
当研究室のメンバーが重要な役割を果たした論文を紹介します。赤字は当研究室所属の学生です。
J. Phys. Soc. Jpn.は日本物理学会の英文誌、Phys. Rev.~~ はアメリカ物理学会の学術誌です。
・2024年度
「Intrinsic Anomalous Hall Effect Arising from Antiferromagnetic Structure Revealed by High-Quality NbMnP」
Y. Arai, J. Hayashi, K. Takeda, H. Tou, H. Sugawara, and H. Kotegawa
to appear in J. Phys. Soc. Jpn.
・2023年度
「Large anomalous Hall effect and unusual domain switching in an orthorhombic antiferromagnetic material NbMnP」
H. Kotegawa, Y. Kuwata, V. T. N. Huyen, Y. Arai, H. Tou, M. Matsuda, K. Takeda, H. Sugawara, and M.-T. Suzuki
npj Quantum Materials 8, 56 (2023).
「Ferroic quadrupole ordering in CeCoSi revealed using 59Co-NMR measurements 」
M. Manago, A. Ishigaki, H. Tou, H. Harima, H. Tanida, and H. Kotegawa
Phys. Rev. B 108, 085118 (2023).
・2022年度
「Observation of multigap and coherence peak in noncentrosymmetric superconductor CaPtAs: 75As nuclear quadrupole resonance measurements 」
Y. Nagase, M. Manago, J. Hayashi, K. Takeda, H. Tou, E. Matsuoka, H. Sugawara, H. Harima, and H. Kotegawa
Phys. Rev. B 107, 104512 (2023).
「Avoided ferromagnetic quantum critical point in CeZn」
H. Kotegawa, T. Uga, H. Tou, E. Matsuoka, and H. Sugawara
Phys. Rev. B 106, L180405 (2022).
・2021年度
「The orthorhombic-to-monoclinic phase transition in NbCrP – Peierls distortion of the chromium chain」
C. Paulsen, J. Kösters, S. Seidel, Y. Kuwata, H. Kotegawa, H. Tou, H. Sugawara, H. Harima, R. Pöttgen
Zeitschrift für Kristallographie 237, 27 (2021).
「Noncollinear spin structure with weak ferromagnetism in NbMnP」
M. Matsuda, D. Zhang, Y. Kuwata, Q. Zhang, T. Sakurai, H. Ohta, H. Sugawara, K. Takeda, J. Hayashi, and H. Kotegawa
Phys. Rev. B 104, 174413 (2021).
「Observation of Longitudinal Magnetic Fluctuations at a First-Order Ferromagnetic Quantum Phase Transition in UGe2」
Y. Noma, H. Kotegawa, T. Kubo, H. Tou, H. Harima, Y. Haga, E. Yamamoto, Y. Onuki, K. M. Itoh, A. Nakamura, Y. Homma, F. Honda, and D. Aoki
J. Phys. Soc. Jpn. 90 073707 (2021).
・2020年度
「Unusual Nonmagnetic Ordered State in CeCoSi Revealed by 59Co-NMR and NQR Measurements」
M. Manago, H. Kotegawa, H. Tou, H. Harima, and H. Tanida
J. Phys. Soc. Jpn. 90 023702 (2021).
「Magnetic properties of the itinerant ferromagnet LaCrGe3 under pressure studied by 139La NMR」
K. Rana, H. Kotegawa, R. R. Ullah, E. Gati, S. L. Bud'ko, P. C. Canfield, H. Tou, V. Taufour, and Y. Furukawa
Phys. Rev. B 103, 174426 (2021). Editors' Suggestion
「First-order phase transition to a nonmagnetic ground state in nonsymmorphic NbCrP」
Y. Kuwata, H. Kotegawa, H. Tou, H. Harima, Q.-P. Ding, K. Takeda, J. Hayashi, E. Matsuoka, H. Sugawara, T. Sakurai, H. Ohta, and Y. Furukawa
Phys. Rev. B 102, 205110 (2020).
・2019年度
「Helimagnetic structure and heavy-fermion-like behavior in the vicinity of the quantum critical point in Mn3P」
H. Kotegawa, M. Matsuda, F. Ye, Y. Tani, K. Uda, Y. Kuwata, H. Tou, E. Matsuoka, H. Sugawara, T. Sakurai, H. Ohta, H. Harima, K. Takeda, J. Hayashi, S. Araki, and T. C. Kobayashi
Phys. Rev. Lett. 124, 087202 (2020).
「Magnetic correlations in the pressure-induced superconductor CrAs investigated by 75As nuclear magnetic resonance」
K. Matsushima, H. Kotegawa, Y. Kuwata, H. Tou, J. Kaneyoshi, E. Matsuoka, H. Sugawara, T. Sakurai, H. Ohta, and H. Harima
Phys. Rev. B 100, 100501(R) (2019).
「Indication of Ferromagnetic Quantum Critical Point in Kondo Lattice CeRh6Ge4」
H. Kotegawa, E. Matsuoka, T. Uga, M. Takemura, M. Manago, N. Chikuchi, H. Sugawara, H. Tou, and H. Harima
J. Phys. Soc. Jpn. 88, 093702 (2019).
「First-Order Metal–Semiconductor Transition Triggered by Rattling Transition in Tetrahedrite Cu12Sb4S13: Cu-Nuclear Magnetic Resonance Studies」
T. Matsui, H. Matsuno, H. Kotegawa, H. Tou, K. Suekuni, T. Hasegawa, H. I. Tanaka, and T. Takabatake
J. Phys. Soc. Jpn. 88, 054710 (2019).
「Nonsaturating large magnetoresistance in the high carrier density nonsymmorphic metal CrP」
Q. Niu, W. C. Yu, E. I. Paredes Aulestia, Y. J. Hu, Kwing To Lai, H. Kotegawa, E. Matsuoka, H. Sugawara, H. Tou, D. Sun, F. F. Balakirev, Y. Yanase, and Swee K. Goh
Phys. Rev. B 99, 125126 (2019).
・2018年度
「195Pt-NMR Evidence for Opening of Partial Charge-Density-Wave Gap in Layered LaPt2Si2 with CaBe2Ge2 Structure」
T. Aoyama, T. Kubo, H. Matsuno, H. Kotegawa, H. Tou, A. Mitsuda, Y. Nagano, N. Araoka, H. Wada, and Y. Yamada
J. Phys. Soc. Jpn. 87, 124713 (2018).
「75As-NQR Investigation of the Relationship between the Instability of Metal–Insulator Transition and Superconductivity in Ru1−xRhxAs」
Y. Kuwata, H. Kotegawa, H. Sugawara, T. Sakurai, H. Ohta, and H. Tou
J. Phys. Soc. Jpn. 87, 073703 (2018).
「Superlattice formation lifting degeneracy protected by nonsymmorphic symmetry through a metal-insulator transition in RuAs」
H. Kotegawa, K. Takeda, Y. Kuwata, J. Hayashi, H. Tou, H. Sugawara, T. Sakurai, H. Ohta, and H. Harima
Phys. Rev. Materials 2, 055001 (2018).
「27Al-NMR studies of the structural phase transition in LaPd2Al2」
T. Aoyama, F. Kobayashi, H. Kotegawa, H. Tou, P. Doležal, D. Kriegner, P. Javorský, and K. Uhlířová
Physics B 536, 320 (2018).
「NMR study on anomalous superconducting phase diagram in UBe13」
H. Matsuno, K. Morita, H. Kotegawa, H. Tou, Y. Haga, E. Yamamoto, Y. and Onuki
Physics B 536, 519 (2018).
「73Ge-NMR study on magnetic fluctuations of ferromagnetic superconductor UGe2」
Y. Noma, H. Kotegawa, T. Kubo, H. Tou, H. Harima, Y. Haga, E. Yamamoto, Y. Onuki, K. M. Itoh, E. E. Haller, A. Nakamura, Y. Homma, F. Honda, and D. Aoki
Physics B 536, 543 (2018).
「Magnetic anisotropy on the single crystal UNi4B probed by 11B NMR」
Y. Kishimoto, H. Matsuno, H. Kotegawa, H. Tou, H. Saito, H. Amitsuka, Y. Homma, A. Nakamura, D. Li, F. Honda, D. Aoki
Physics B 536, 564 (2018).
「NMR spectrum analysis for CrAs at ambient pressure」
H. Kotegawa, S. Nakahara, K. Matsushima, H. Tou, E. Matsuoka, H. Sugawara, and H. Harima
Physics B 536, 810 (2018).
・2017年度
「Anisotropic Magnetic Fluctuations in Ferromagnetic Superconductor UGe2: 73Ge-NQR Study at Ambient Pressure」
Y. Noma, H. Kotegawa, T. Kubo, H. Tou, H. Harima, Y. Haga, E. Yamamoto, Y. Onuki, K. M. Itoh, E. E. Haller, A. Nakamura, Y. Homma, F. Honda, and D. Aoki
J. Phys. Soc. Jpn. 87, 033704 (2018).
「Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide」
Q. Niu, W. C. Yu, K. Y. Yip, Z. L. Lim, H. Kotegawa, E. Matsuoka, H. Sugawara, H. Tou, Y. Yanase and S. K. Goh,
Nature Communications 8, 15358 (2017).
「Superconductivity and magnetic fluctuations developing in the vicinity of strong first-order magnetic transition in CrAs」
H. Kotegawa, K. Matsushima, S. Nakahara, H. Tou, J. Kaneyoshi, T. Nishiwaki, E. Matsuoka, H. Sugawara and H. Harima
Journal of Physics: Condensed Matter 29, 234002 (2017).
「9Be-NMR studies on anomalous superconducting phase diagram in UBe13」
H. Matsuno, K. Morita, H. Kotegawa, H. Tou, Y. Haga, E. Yamamoto and Y. Onuki
Journal of Physics: Conf. Series 807, 052015 (2017).
「NMR studies of coexistence of superconductivity and CDW in LaPt2Si2」
T. Aoyama, T. Kubo, H. Matsuno, H. Kotegawa, H. Tou, A. Mitsuda, Y. Nagano, N. Araoka, H. Wada and Y. Yamada
Journal of Physics: Conf. Series 807, 062002 (2017).
「Sb-NMR/NQR studies of heavy fermion system YbRhSb」
Y. Kishimoto, Y. Awai, H. Kotegawa, H. Tou, Y. Muro, K. Nakamura, M. Sera, and T. Takabatake
Journal of Physics: Conf. Series 807, 012014 (2017).
「Growth and NMR evaluation of a single crystal CePd2Ga」
Y. Kishimoto, H. Kotegawa, E. Matsuoka, H. Sugawara and H. Tou
Journal of Physics: Conf. Series 807, 012005 (2017).
「Site-selective NMR measurements in single crystal PrNb2Al20」
T. Kubo, H. Kotegawa, H. Tou, H. Harima, R. Higashinaka, A. Nakama, Y. Aoki and H. Sato
Journal of Physics: Conf. Series 807, 032006 (2017).
・2016年度
「Analysis of 27Al- and 93Nb-NMR spectra of PrNb2Al20 single crystal」
T. Kubo, H. Kotegawa, H. Tou, R. Higashinaka, A. Nakama, Y. Aoki and H. Sato
Journal of Physics: Conference Series 683, 012015 (2016).
・2015年度
「Anomalous superconducting phase diagram in UBe13」
H. Matsuno, K. Morita, H. Kotegawa, H. Tou, Y. Haga, E. Yamamoto and Y. Onuki
Journal of Physics: Conference Series 592, 012067 (2015).
「93Nb- and 27Al-NMR/NQR studies of the praseodymium based PrNb2Al20」
T. Kubo, H. Kotegawa, H. Tou, R. Higashinaka, A. Nakama, Y. Aoki and H. Sato
Journal of Physics: Conference Series 592, 012093 (2015).
「Absence of Magnetic Dipolar Phase Transition and Evolution of Low-Energy Excitations in PrNb2Al20 with Crystal Electric Field Γ3 Ground State: Evidence from 93Nb-NQR Studies」
T. Kubo, H. Kotegawa, H. Tou, R. Higashinaka, A. Nakama, Y. Aoki, and H. Sato
J. Phys. Soc. Jpn. 84, 074701 (2015).
「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).
「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).
・2014年度
「Phase diagram of CeRuPO under pressure investigated by 31P-NMR: Comparison between CeRuPO under pressure and Ce(Ru1-xFex)PO system」
S. Kitagawa, H. Kotegawa, H. Tou, R. Yamauchi, E. Matsuoka, and H. Sugawara
Phys. Rev. B 90, 134406 (2014).
「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).
「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
「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).
「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).
「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).
・2013年度
「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.
「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.
「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.
「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, and J. Flouquet
J. Korean Phys. Soc. 63, (2013) 341.
「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.
「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. 62, (2013) 1862.
・2012年度
「Magnetic excitations in iron chalcogenide superconductors」
H. Kotegawa and M. Fujita
Sci. Tec. Adv. Mat. 13, (2012) 054302.
「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.
「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.
「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
「Ising-Type Magnetic Anisotropy Derived by Γ7(1) 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.
「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.
・2011年度
「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.
「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
「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.
「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.
「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.
「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.
「 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.
「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.
「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
J. Phys. Soc. Jpn. 80, (2011) 043708.
「Pressure Dependence of Superconducting Transition Temperature on Perovskite-Type Fe-Based Superconductors and NMR Study of Sr2VFeAsO3」
H. Kotegawa, Y. Tao, H. Tou, H. Ogino, S. Horii, K. Kishio, J. Shimoyama
J. Phys. Soc. Jpn. 80, (2011) 014712.
・2010年度
「77Se-NMR study of Co-substituted FeSe」
H. Kotegawa, Y. Hara, S. Masaki, H. Tou, Y. Mizuguchi, Y. Takano
Physica C 470, (2010) S426.
「15N NMR studies of layered nitride superconductor LixZrNCl」
H. Tou, S. Oshiro, H. Kotegawa, Y. Taguchi, Y. Kishiume, Y. Kasahara, Y. Iwasa
Physica C 470, (2010) S658.
「Effect of Swelling on the Superconducting Characteristics in Electron-Doped LixZrNCl and HfNCl」
K. Hotehama, T. Koiwasaki, K. Umemoto, S. Yamanaka, and H. Tou
J. Phys. Soc. Jpn. 79, (2010) 014707.
・2009年度
「Contrasting Pressure Effects in Sr2VFeAsO3 and Sr2ScFePO3」
H. Kotegawa, T. Kawazoe, H. Tou, K. Murata, H. Ogino, K. Kishio, J. Shimoyama
J. Phys. Soc. Jpn. 78, (2009) 123707.
「Effect of Uniaxial Stress for Pressure-Induced Superconductor SrFe2As2」
H. Kotegawa, T. Kawazoe, H. Sugawara, K. Murata, and H. Tou
J. Phys. Soc. Jpn. 78, (2009) 083702.
「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
J. Phys. Soc. Jpn. 78, (2009) 063704.
「Abrupt Emergence of Pressure-Induced Superconductivity of 34K in SrFe2As2: A Resistivity Study under Pressure」
H. Kotegawa, H. Sugawara, and H. Tou,
J. Phys. Soc. Jpn. 78, (2009) 013709. Papers of Editors' Choice
・2008年度
「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,
J. Phys. Soc. Jpn. 77, (2008) 113703.
J. Phys. Soc. Jpn.は日本物理学会の英文誌、Phys. Rev.~~ はアメリカ物理学会の学術誌です。
・2024年度
「Intrinsic Anomalous Hall Effect Arising from Antiferromagnetic Structure Revealed by High-Quality NbMnP」
Y. Arai, J. Hayashi, K. Takeda, H. Tou, H. Sugawara, and H. Kotegawa
to appear in J. Phys. Soc. Jpn.
・2023年度
「Large anomalous Hall effect and unusual domain switching in an orthorhombic antiferromagnetic material NbMnP」
H. Kotegawa, Y. Kuwata, V. T. N. Huyen, Y. Arai, H. Tou, M. Matsuda, K. Takeda, H. Sugawara, and M.-T. Suzuki
npj Quantum Materials 8, 56 (2023).
「Ferroic quadrupole ordering in CeCoSi revealed using 59Co-NMR measurements 」
M. Manago, A. Ishigaki, H. Tou, H. Harima, H. Tanida, and H. Kotegawa
Phys. Rev. B 108, 085118 (2023).
・2022年度
「Observation of multigap and coherence peak in noncentrosymmetric superconductor CaPtAs: 75As nuclear quadrupole resonance measurements 」
Y. Nagase, M. Manago, J. Hayashi, K. Takeda, H. Tou, E. Matsuoka, H. Sugawara, H. Harima, and H. Kotegawa
Phys. Rev. B 107, 104512 (2023).
「Avoided ferromagnetic quantum critical point in CeZn」
H. Kotegawa, T. Uga, H. Tou, E. Matsuoka, and H. Sugawara
Phys. Rev. B 106, L180405 (2022).
・2021年度
「The orthorhombic-to-monoclinic phase transition in NbCrP – Peierls distortion of the chromium chain」
C. Paulsen, J. Kösters, S. Seidel, Y. Kuwata, H. Kotegawa, H. Tou, H. Sugawara, H. Harima, R. Pöttgen
Zeitschrift für Kristallographie 237, 27 (2021).
「Noncollinear spin structure with weak ferromagnetism in NbMnP」
M. Matsuda, D. Zhang, Y. Kuwata, Q. Zhang, T. Sakurai, H. Ohta, H. Sugawara, K. Takeda, J. Hayashi, and H. Kotegawa
Phys. Rev. B 104, 174413 (2021).
「Observation of Longitudinal Magnetic Fluctuations at a First-Order Ferromagnetic Quantum Phase Transition in UGe2」
Y. Noma, H. Kotegawa, T. Kubo, H. Tou, H. Harima, Y. Haga, E. Yamamoto, Y. Onuki, K. M. Itoh, A. Nakamura, Y. Homma, F. Honda, and D. Aoki
J. Phys. Soc. Jpn. 90 073707 (2021).
・2020年度
「Unusual Nonmagnetic Ordered State in CeCoSi Revealed by 59Co-NMR and NQR Measurements」
M. Manago, H. Kotegawa, H. Tou, H. Harima, and H. Tanida
J. Phys. Soc. Jpn. 90 023702 (2021).
「Magnetic properties of the itinerant ferromagnet LaCrGe3 under pressure studied by 139La NMR」
K. Rana, H. Kotegawa, R. R. Ullah, E. Gati, S. L. Bud'ko, P. C. Canfield, H. Tou, V. Taufour, and Y. Furukawa
Phys. Rev. B 103, 174426 (2021). Editors' Suggestion
「First-order phase transition to a nonmagnetic ground state in nonsymmorphic NbCrP」
Y. Kuwata, H. Kotegawa, H. Tou, H. Harima, Q.-P. Ding, K. Takeda, J. Hayashi, E. Matsuoka, H. Sugawara, T. Sakurai, H. Ohta, and Y. Furukawa
Phys. Rev. B 102, 205110 (2020).
・2019年度
「Helimagnetic structure and heavy-fermion-like behavior in the vicinity of the quantum critical point in Mn3P」
H. Kotegawa, M. Matsuda, F. Ye, Y. Tani, K. Uda, Y. Kuwata, H. Tou, E. Matsuoka, H. Sugawara, T. Sakurai, H. Ohta, H. Harima, K. Takeda, J. Hayashi, S. Araki, and T. C. Kobayashi
Phys. Rev. Lett. 124, 087202 (2020).
「Magnetic correlations in the pressure-induced superconductor CrAs investigated by 75As nuclear magnetic resonance」
K. Matsushima, H. Kotegawa, Y. Kuwata, H. Tou, J. Kaneyoshi, E. Matsuoka, H. Sugawara, T. Sakurai, H. Ohta, and H. Harima
Phys. Rev. B 100, 100501(R) (2019).
「Indication of Ferromagnetic Quantum Critical Point in Kondo Lattice CeRh6Ge4」
H. Kotegawa, E. Matsuoka, T. Uga, M. Takemura, M. Manago, N. Chikuchi, H. Sugawara, H. Tou, and H. Harima
J. Phys. Soc. Jpn. 88, 093702 (2019).
「First-Order Metal–Semiconductor Transition Triggered by Rattling Transition in Tetrahedrite Cu12Sb4S13: Cu-Nuclear Magnetic Resonance Studies」
T. Matsui, H. Matsuno, H. Kotegawa, H. Tou, K. Suekuni, T. Hasegawa, H. I. Tanaka, and T. Takabatake
J. Phys. Soc. Jpn. 88, 054710 (2019).
「Nonsaturating large magnetoresistance in the high carrier density nonsymmorphic metal CrP」
Q. Niu, W. C. Yu, E. I. Paredes Aulestia, Y. J. Hu, Kwing To Lai, H. Kotegawa, E. Matsuoka, H. Sugawara, H. Tou, D. Sun, F. F. Balakirev, Y. Yanase, and Swee K. Goh
Phys. Rev. B 99, 125126 (2019).
・2018年度
「195Pt-NMR Evidence for Opening of Partial Charge-Density-Wave Gap in Layered LaPt2Si2 with CaBe2Ge2 Structure」
T. Aoyama, T. Kubo, H. Matsuno, H. Kotegawa, H. Tou, A. Mitsuda, Y. Nagano, N. Araoka, H. Wada, and Y. Yamada
J. Phys. Soc. Jpn. 87, 124713 (2018).
「75As-NQR Investigation of the Relationship between the Instability of Metal–Insulator Transition and Superconductivity in Ru1−xRhxAs」
Y. Kuwata, H. Kotegawa, H. Sugawara, T. Sakurai, H. Ohta, and H. Tou
J. Phys. Soc. Jpn. 87, 073703 (2018).
「Superlattice formation lifting degeneracy protected by nonsymmorphic symmetry through a metal-insulator transition in RuAs」
H. Kotegawa, K. Takeda, Y. Kuwata, J. Hayashi, H. Tou, H. Sugawara, T. Sakurai, H. Ohta, and H. Harima
Phys. Rev. Materials 2, 055001 (2018).
「27Al-NMR studies of the structural phase transition in LaPd2Al2」
T. Aoyama, F. Kobayashi, H. Kotegawa, H. Tou, P. Doležal, D. Kriegner, P. Javorský, and K. Uhlířová
Physics B 536, 320 (2018).
「NMR study on anomalous superconducting phase diagram in UBe13」
H. Matsuno, K. Morita, H. Kotegawa, H. Tou, Y. Haga, E. Yamamoto, Y. and Onuki
Physics B 536, 519 (2018).
「73Ge-NMR study on magnetic fluctuations of ferromagnetic superconductor UGe2」
Y. Noma, H. Kotegawa, T. Kubo, H. Tou, H. Harima, Y. Haga, E. Yamamoto, Y. Onuki, K. M. Itoh, E. E. Haller, A. Nakamura, Y. Homma, F. Honda, and D. Aoki
Physics B 536, 543 (2018).
「Magnetic anisotropy on the single crystal UNi4B probed by 11B NMR」
Y. Kishimoto, H. Matsuno, H. Kotegawa, H. Tou, H. Saito, H. Amitsuka, Y. Homma, A. Nakamura, D. Li, F. Honda, D. Aoki
Physics B 536, 564 (2018).
「NMR spectrum analysis for CrAs at ambient pressure」
H. Kotegawa, S. Nakahara, K. Matsushima, H. Tou, E. Matsuoka, H. Sugawara, and H. Harima
Physics B 536, 810 (2018).
・2017年度
「Anisotropic Magnetic Fluctuations in Ferromagnetic Superconductor UGe2: 73Ge-NQR Study at Ambient Pressure」
Y. Noma, H. Kotegawa, T. Kubo, H. Tou, H. Harima, Y. Haga, E. Yamamoto, Y. Onuki, K. M. Itoh, E. E. Haller, A. Nakamura, Y. Homma, F. Honda, and D. Aoki
J. Phys. Soc. Jpn. 87, 033704 (2018).
「Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide」
Q. Niu, W. C. Yu, K. Y. Yip, Z. L. Lim, H. Kotegawa, E. Matsuoka, H. Sugawara, H. Tou, Y. Yanase and S. K. Goh,
Nature Communications 8, 15358 (2017).
「Superconductivity and magnetic fluctuations developing in the vicinity of strong first-order magnetic transition in CrAs」
H. Kotegawa, K. Matsushima, S. Nakahara, H. Tou, J. Kaneyoshi, T. Nishiwaki, E. Matsuoka, H. Sugawara and H. Harima
Journal of Physics: Condensed Matter 29, 234002 (2017).
「9Be-NMR studies on anomalous superconducting phase diagram in UBe13」
H. Matsuno, K. Morita, H. Kotegawa, H. Tou, Y. Haga, E. Yamamoto and Y. Onuki
Journal of Physics: Conf. Series 807, 052015 (2017).
「NMR studies of coexistence of superconductivity and CDW in LaPt2Si2」
T. Aoyama, T. Kubo, H. Matsuno, H. Kotegawa, H. Tou, A. Mitsuda, Y. Nagano, N. Araoka, H. Wada and Y. Yamada
Journal of Physics: Conf. Series 807, 062002 (2017).
「Sb-NMR/NQR studies of heavy fermion system YbRhSb」
Y. Kishimoto, Y. Awai, H. Kotegawa, H. Tou, Y. Muro, K. Nakamura, M. Sera, and T. Takabatake
Journal of Physics: Conf. Series 807, 012014 (2017).
「Growth and NMR evaluation of a single crystal CePd2Ga」
Y. Kishimoto, H. Kotegawa, E. Matsuoka, H. Sugawara and H. Tou
Journal of Physics: Conf. Series 807, 012005 (2017).
「Site-selective NMR measurements in single crystal PrNb2Al20」
T. Kubo, H. Kotegawa, H. Tou, H. Harima, R. Higashinaka, A. Nakama, Y. Aoki and H. Sato
Journal of Physics: Conf. Series 807, 032006 (2017).
・2016年度
「Analysis of 27Al- and 93Nb-NMR spectra of PrNb2Al20 single crystal」
T. Kubo, H. Kotegawa, H. Tou, R. Higashinaka, A. Nakama, Y. Aoki and H. Sato
Journal of Physics: Conference Series 683, 012015 (2016).
・2015年度
「Anomalous superconducting phase diagram in UBe13」
H. Matsuno, K. Morita, H. Kotegawa, H. Tou, Y. Haga, E. Yamamoto and Y. Onuki
Journal of Physics: Conference Series 592, 012067 (2015).
「93Nb- and 27Al-NMR/NQR studies of the praseodymium based PrNb2Al20」
T. Kubo, H. Kotegawa, H. Tou, R. Higashinaka, A. Nakama, Y. Aoki and H. Sato
Journal of Physics: Conference Series 592, 012093 (2015).
「Absence of Magnetic Dipolar Phase Transition and Evolution of Low-Energy Excitations in PrNb2Al20 with Crystal Electric Field Γ3 Ground State: Evidence from 93Nb-NQR Studies」
T. Kubo, H. Kotegawa, H. Tou, R. Higashinaka, A. Nakama, Y. Aoki, and H. Sato
J. Phys. Soc. Jpn. 84, 074701 (2015).
「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).
「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).
・2014年度
「Phase diagram of CeRuPO under pressure investigated by 31P-NMR: Comparison between CeRuPO under pressure and Ce(Ru1-xFex)PO system」
S. Kitagawa, H. Kotegawa, H. Tou, R. Yamauchi, E. Matsuoka, and H. Sugawara
Phys. Rev. B 90, 134406 (2014).
「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).
「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
「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).
「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).
「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).
・2013年度
「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.
「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.
「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.
「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, and J. Flouquet
J. Korean Phys. Soc. 63, (2013) 341.
「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.
「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. 62, (2013) 1862.
・2012年度
「Magnetic excitations in iron chalcogenide superconductors」
H. Kotegawa and M. Fujita
Sci. Tec. Adv. Mat. 13, (2012) 054302.
「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.
「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.
「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
「Ising-Type Magnetic Anisotropy Derived by Γ7(1) 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.
「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.
・2011年度
「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.
「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
「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.
「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.
「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.
「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.
「 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.
「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.
「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
J. Phys. Soc. Jpn. 80, (2011) 043708.
「Pressure Dependence of Superconducting Transition Temperature on Perovskite-Type Fe-Based Superconductors and NMR Study of Sr2VFeAsO3」
H. Kotegawa, Y. Tao, H. Tou, H. Ogino, S. Horii, K. Kishio, J. Shimoyama
J. Phys. Soc. Jpn. 80, (2011) 014712.
・2010年度
「77Se-NMR study of Co-substituted FeSe」
H. Kotegawa, Y. Hara, S. Masaki, H. Tou, Y. Mizuguchi, Y. Takano
Physica C 470, (2010) S426.
「15N NMR studies of layered nitride superconductor LixZrNCl」
H. Tou, S. Oshiro, H. Kotegawa, Y. Taguchi, Y. Kishiume, Y. Kasahara, Y. Iwasa
Physica C 470, (2010) S658.
「Effect of Swelling on the Superconducting Characteristics in Electron-Doped LixZrNCl and HfNCl」
K. Hotehama, T. Koiwasaki, K. Umemoto, S. Yamanaka, and H. Tou
J. Phys. Soc. Jpn. 79, (2010) 014707.
・2009年度
「Contrasting Pressure Effects in Sr2VFeAsO3 and Sr2ScFePO3」
H. Kotegawa, T. Kawazoe, H. Tou, K. Murata, H. Ogino, K. Kishio, J. Shimoyama
J. Phys. Soc. Jpn. 78, (2009) 123707.
「Effect of Uniaxial Stress for Pressure-Induced Superconductor SrFe2As2」
H. Kotegawa, T. Kawazoe, H. Sugawara, K. Murata, and H. Tou
J. Phys. Soc. Jpn. 78, (2009) 083702.
「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
J. Phys. Soc. Jpn. 78, (2009) 063704.
「Abrupt Emergence of Pressure-Induced Superconductivity of 34K in SrFe2As2: A Resistivity Study under Pressure」
H. Kotegawa, H. Sugawara, and H. Tou,
J. Phys. Soc. Jpn. 78, (2009) 013709. Papers of Editors' Choice
・2008年度
「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,
J. Phys. Soc. Jpn. 77, (2008) 113703.