μSR investigation of magnetism in κ−(ET)2X: Antiferromagnetism B. M. Huddart, T. Lancaster, S. J. Blundell, Z. Guguchia, H. Taniguchi, S. J. Clark, and F. L. Pratt Phys. Rev. Research 5, 013015(2023).
Probing uniform and nonuniform charge ordering with polarized femtosecond optical pulses in geometrically frustrated θ−(BEDT−TTF)2MZn(SCN)4 (M=Rb, Cs) K. Nakagawa, S. Tsuchiya, H. Taniguchi, and Y. Toda Phys. Rev. Research 5, 013024(2023).
Relationship between Electronic Inhomogeneity and Bandwidth in the Organic Conductor Κ−(BEDT−TTF)2Cu[N(CN)2]I Studied by C13 NMR Spectroscopy T. Kobayashi, A. Suzuta, and A. Kawamoto Phys. Rev. B 105, 195148(2022).
Antiferromagnetic ordering of organic Mott insulator λ−(BEDSe-TTF)2GaCl4 A. Ito, T. Kobayashi, D. P. Sari, I. Watanabe, Y. Saito, A. Kawamoto, H. Tsunakawa, K. Satoh, and H. Taniguchi Phys. Rev. B 106, 045114(2022).
Dynamics of ethylene groups and hyperfine interactions between donor and anion molecules in λ-type organic conductors studied by 69,71Ga-NMR spectroscopy N. Yasumura, T. Kobayashi, H. Taniguchi, S. Fukuoka, and A. Kawamoto Phys. Rev. B 106, 245103(2022).
Mott-Driven BEC-BCS Crossover in a Doped Spin Liquid Candidate κ−(BEDT-TTF)4Hg2.89Br8 Y. Suzuki, K. Wakamatsu, J. Ibuka, H. Oike, T. Fujii, K. Miyagawa, H. Taniguchi, and K. Kanoda Phys. Rev. X 12, 011016(2022).
Ultrafast dynamics of Mott-state quench and formation in strongly correlated BEDT-TTF molecular conductors observed by three-pulse pump probe spectroscopy S. Tsuchiya, H. Taniguchi, J. Yamada, Y. Toda, D. Mihailovic, and T. Mertelj Phys. Rev. B 104, 115152(2021).
Charge imbalance in λ−(BETS)2GaCl4 and their interplay with superconductivity Olga Iakutkina, Ece Uykur, Takuya Kobayashi, Atsushi Kawamoto, Martin Dressel, and Yohei Saito Phys. Rev.B104, 045108(2021).
Thermodynamic evidence for the formation of a Fulde-Ferrell-Larkin-Ovchinnikov phase in the organic superconductor λ−(BETS)2GaCl4 S. Imajo, T. Kobayashi, A. Kawamoto, K. Kindo, and Y. Nakazawa Phys. Rev.B103, L220501(2021).
Enhancement of electron correlations and spin density wave fluctuations of the organic superconductor λ−(BETS)2GaCl4 under pressure proved by 13C NMR M. Sawada, A. Kawamoto, and T. Kobayashi Phys. Rev.B103, 045112(2021).
Selective observation of spin and charge dynamics in an organic superconductor λ−(BETS)2GaCl4 using 69,71GaNMR measurements T. Kobayashi, K.Tsuji, A.Ohnuma,and A. Kawamoto Phys. Rev.B102, 235131(2020).
Interacting electron spins in κ−(BEDT-TTF)2Cu[N(CN)2]I investigated by ESR spectroscopy Lena Nadine Majer,Björn Miksch, Olga Iakutkina,T. Kobayashi,A. Kawamoto,and Martin Dressel Phys. Rev.B102, 214430(2020).
Charge disproportionation in the spin-liquid candidate κ−(ET)2Cu2(CN)3 at 6 K revealed by 63Cu NQR measurements T. Kobayashi, Q.-P. Ding, H. Taniguchi, K. Satoh, A. Kawamoto, and Y. Furukawa Phys. Rev. Research 2, 042023(2020).
Unconventional superconductivity in λ-(BETS)2GaCl4 probed by 13C NMR T. Kobayashi, H. Taniguchi, A. Ohnuma, and A. Kawamoto Phys. Rev. B102, 121106(2020).
Formation of nanoscale polarized clusters as precursors of electronic ferroelectricity probed by conductance noise spectroscopy Jens Müller, Satoshi Iguchi, Hiromi Taniguchi, and Takahiko Sasaki Phys. Rev. B102, 100103(2020).
Quantum Disordering of an Antiferromagnetic Order by Quenched Randomness in an Organic Mott Insulator Mizuki Urai, Kazuya Miyagawa, Takahiko Sasaki, Hiromi Taniguchi, and Kazushi Kanoda Phys. Rev. B124, 117204(2020).
Spin-density wave in the vicinity of superconducting state in λ−(BETS)2GaBrxCl4−xprobed by 13CNMR spectroscopy T. Kobayashi, T. Ishikawa, A. Ohnuma, M. Sawada, N. Matsunaga, H. Uehara, and A. Kawamoto Phys. Rev. Research 2, 023075(2020).
Spin structure at zero magnetic field and field-induced spin reorientation transitions in a layered organic canted antiferromagnet bordering a superconducting phase Kohsuke Oinuma, Naoki Okano, Hitoshi Tsunakawa, Shinji Michimura, Takuya Kobayashi, Hiromi Taniguchi, Kazuhiko Satoh, Julia Angel, Isao Watanabe, Yasuyuki Ishii, Hiroyuki Okamoto, and Tetsuaki Itou Phys. Rev. B102, 035102(2020).
Polarized Time-Resolved Spectroscopy of Electronic Phase Separation in a Dimer-Mott Organic Insulator Koichi Nakagawa, Satoshi Tsuchiya, Hiromi Taniguchi,Yasunori Toda Journal of Superconductivity and Novel Magnetism (2020).
Inhomogeneous electronic state of organic conductor κ−(BEDT-TTF)2Cu[N(CN)2]Istudied by 13CNMR spectroscopy T. Kobayashi, A. Suzuta, K. Tsuji, Y. Ihara, and A. Kawamoto Phys. Rev. B 100, 195115 (2019).
Gap Symmetry of the Organic Superconductor λ-(BETS)2GaCl4 Determined by Magnetic-Field-Angle-Resolved Heat Capacity Shusaku Imajo, Satoshi Yamashita, Hiroki Akutsu, Hiroya Kumagai, Takuya Kobayashi, Atsushi Kawamoto, and Yasuhiro Nakazawa J. Phys. Soc. Jpn. 88, 023702 (2019).
Disorder unveils Mott quantum criticality behind a first-order transition in the quasi-two-dimensional organic conductor κ−(ET)2Cu[N(CN)2]Cl Mizuki Urai, Tetsuya Furukawa, Yasuhide Seki, Kazuya Miyagawa, Takahiko Sasaki, Hiromi Taniguchi, and Kazushi Kanoda Phys. Rev. B 99, 245139 (2019).
Polarization-resolved Ultrafast Spectroscopy in an Organic Mott Insulator κ-(BEDT-TTF)2Cu[N(CN)2]Cl Satoshi Tsuchiya, Koichi Nakagawa, Hiromi Taniguchi, and Yasunori Toda J. Phys. Soc. Jpn. 88, 074706 (2019).
Density Wave State in New α-Type Organic Conductor, α-(BEDT-TTF)2MHg(XCN)4 (M = NH4, X = Se): A Key Material for Universal Phase Diagram of X = S and X = Se Systems Akihiro Ohnuma, Hiromi Taniguchi, Yukihiro Takahashi, and Atsushi Kawamoto J. Phys. Chem. C 122, 42, 24321–24328.(2018)
Zero-Field Spin Structure and Spin Reorientations in Layered Organic Antiferromagnet, κ-(BEDT-TTF)2Cu[N(CN)2]Cl, with Dzyaloshinskii–Moriya Interaction R. Ishikawa, H. Tsunakawa, K. Oinuma, S. Michimura, H. Taniguchi, K. Satoh, Y. Ishii, and H. Okamoto J. Phys. Soc. Jpn. 87 (2018), 064701 1-12.
Photoinduced phase separation with local structural ordering in organic molecular conductors S. Tsuchiya, K. Nakagawa, J. Yamada, H. Taniguchi, and Y. Toda Phys. Rev. B 96, 134311 1-6 (2017).
Dimer-Mott and charge-ordered insulating states in the quasi-one-dimensional organic conductors δ′P - and δ′C−(BPDT-TTF)2ICl2 R.Kobayashi, K. Hashimoto, N. Yoneyama, K. Yoshimi, Y. Motoyama, S. Iguchi, Y. Ikemoto, T. Moriwaki, H. Taniguchi, and T. Sasaki Phys. Rev. B 96, 115112 1-8 (2017).
Anomalous metallic behaviour in the doped spin liquid candidate κ-(ET)4Hg2.89Br8 H.Oike, Y. Suzuki, H. Taniguchi, Y. Seki, K. Miyagawa, and K. Kanoda Nature Communications, 8, 756 (7page) (2017).
Electric-field-induced intradimer charge disproportination in the dimer-Mott insulator β’-(BEDT-TTF)2ICl2 Y.Hattori, S. Iguchi, T. Sasaki, S. Iwai, H. Taniguchi, and H. Kishida Phys. Rev. B95, 085149 1-5 (2017).
Studies on magnetism of the layered organic antiferromagnet bordered on a superconducting phase by MSR and magnetization measurements T.Uehara, M. Ito, J. Angel, J. Shimada, N. Komakine, T. Tsuchiya, H. Taniguchi, K. Satoh, K. Triyana, Y. Ishii, and I. Watanabe J. Phys. Soc. Jpn. 85 (2016), 024710 1-6.
Electron transport in TTF-CA under high pressures R.Takehara, K. Miyagawa, K. Kanoda, T. Miyamoto, H. Matsuzaki, H. Okamoto, H. Taniguchi, K. Matsubayashi, Y. Uwatoko Physica B: Condensed Matter 460, 83 (2015)
Electrical Transport in the Quasi-Two-Dimensional Ionic Mott Insulator M2P-TCNQF4 under High Pressures R. Takehara, K. Miyagawa, T. Miyamoto, H. Okamoto, H. Taniguchi, K. Matsubayashi, Y. Uwatoko, K. Kanoda J. Phys. Soc. Jpn. 84, 104702, 5page (2015).
Quantum spin liquid emerging from Antiferromagnetic order by introducing disorderT. Furukawa, K. Miyagawa, T. Itou, M. Ito, H. Taniguchi, M. Saito, S. Iguchi, T. Sasaki, and K. Kanoda Phys. Rev. Lett., 115, 077001 (2015).
Emergence of charge degrees of freedom under high pressure in the organic dimer-Mott insulator β’-(BEDT-TTF)2ICl2 K. Hashimoto, R. Kobayashi, H. Okamura, H. Taniguchi, Y. Ikemoto, T. Moriwaki, S. Iguchi, M. Naka, S. Ishihara, and T. Sasaki Phys. Rev. B92, 085149 (2015).
Quantum criticality of Mott transition in organic materials T. Furukawa, K. Miyagawa, H. Taniguchi, R. Kato, and K. Kanoda Nature Physics, 11, 221-224 (2015).
Zero-Field Magnetism of a Two-Dimensional Antiferromagnet,κ-(BEDT-TTF)2Cu[N(CN)2]Cl, Determined by Muon Spin Rotation and Magnetization Measurements M. Ito, T. Uehara, H. Taniguchi, K. Satoh, Y. Ishii, I. Watanabe, Zero-Field Magnetism of a Two-Dimensional Antiferromagnet J. Phys. Soc. Jpn. 84, 053703 (2015).
Pressure-Induced Mott Transition in an Organic Superconductor with a Finite Doping LevelH. Oike, K. Miyagawa, H. Taniguchi, K. Kanoda Phys. Rev. Lett. 114, 67002 (2015).
Growth and X-ray topographic characterization of κ-(BEDT-TTF)2Cu[N(CN)2]Br single crystals K. Mizuno, T. Kobayashi, H. Taniguchi, and H. Okamoto Trans. Mat. Res. Soc. Japan, 38, 565-568 (2013).
Relaxor ferroelectricity induced by electron correlations in a molecular dimer Mott insulatorS. Iguchi, S. Sasaki, N. Yoneyama, H. Taniguchi, T. Nishizaki, and T. Sasaki Phys. Rev. B87, 075107 (2013).
Magnetic transition in dimerized radical cation salt of (BPDT-TTF)2ICl2 studied by heat capacity measurements H. Y. Guan, S. Furuoka, S. Yamashita, T. Yamamoto, H. Taniguchi, and Y. Nakazawa J. Thermal Analysis and Calorimetry, 113, 1197-1201 (2013).
Superconducting Fluctuation of the Layered Organic Superconductor, κ-(BEDT-TTF)2Cu[N(CN)2]Br in Magnetic Susceptibility T. Uehara, M. Ito, H. Taniguchi and K. Satoh J. Phys.Soc. Jpn., 82, 073706, 1-5, (2013).
13C-NMR studies of the paramagnetic and charge-ordered states of the organic superconductor β''-(BEDT-TTF)3Cl2 2H2O under pressure S. Nagata, T. Ogura, A. Kawamoto and H. Taniguchi Phys. Rev. B84, 035105 (2011).
13C-NMR study of κ-(BEDT-TTF)2Cu(NCS)2 under pressure M. Itaya, Y. Eto, A. Kawamoto, H. Taniguchi Physica B, 405 no. 11suppl.1, S259-S261, (2010).
Short piston-cylinder pressure cells based on Ni-Cr-Al cylinders and their application to fragile materials H. Taniguchi, S. Takeda, R. Satoh, H. Komatsu, K. Satoh Rev. Sci. Instrum, 81, 033903-033911 (2010).
Inhomogeneous spin state in the organic conductor κ-(BEDT-TTF)4Hg2.78Cl8Y. Kurosaki, A. Furuta, H. Taniguchi, K. Miyagawa, K. Kanoda Physica B, 404, 3138-3140 (2009).
Antiferromagnetic Fluctuations in the Organic Superconductor κ-(BEDT-TTF)2Cu(NCS)2 under PressureM. Itaya, Y. Eto, A. Kawamoto, H. Taniguchi Phys. Rev. Lett. 102 227003(4page) (2009).
Superconductivity induced by extremely high pressures in organic Mott-insulator β'-(BEDT-TTF)2IBrCl M. Kano, K. Uchiyama, H. Taniguchi, M. Hedo, K. Matsubayashi, Y. Uwatoko J. Phys. :Conf. Ser. 150, 52093 (4page) (2009).
μSR study of organic antiferromagnet β'-(BEDT-TTF)2ICl2 under high pressure K. Satoh, K. Sato, T. Yoshida, H. Taniguchi, T. Goko Physica B, 404, 600-602 (2009).
μSR study of an layered organic superconductor κ-(BEDT-TTF)4Hg2.89Br8 K. Satoh, H. Fujita, K. Katayama, H. Taniguchi, T. U. Ito, K. Ohishi, W. Higemoto Physica B, 404, 597-599 (2009).
Contactless conductivity measurements on the organic conductor, κ-(ET)4Hg2.89Br8, under pressure H. Oike, K. Miyagawa, K. Kanoda, H. Taniguchi, and K. Murata Physica B, 404, 376-378 (2009).
2021年年次大会 日本物理学会領域７ 学生優秀発表賞 菅原 佳哉 「新規有機電荷移動錯体(BEST)2CuCl2における10K級圧力誘起超伝導の発見」 2018年秋季大会 日本物理学会領域７ 学生優秀発表賞 綱川 仁志 「傾角反強磁性体κ-ET2Cu[N(CN)2]Clの磁場誘起スピン再配向」
2021
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日本物理学会誌、vol.76 no.7, pp. 450-455
2019
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固体物理Vol.54No.3
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宮下 将,内山賢一,石井康之,谷口弘三,佐藤一彦,毛利信男,辺土正人,上床美也
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