Exotic electronic state and quantum condensate in superconductors with ultra-shallow bands

• Project/Area Number: 15H03688
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Kyoto University
• Principal Investigator: Kasahara Shigeru 京都大学, 理学研究科, 助教 (10425556)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000); Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2015: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
• Keywords: 非従来型超伝導 / ネマティック相 / 超シャロウバンド / BCS-BECクロスオーバー / 前駆電子対 / 超伝導揺らぎ / 超伝導ギャップ構造 / 軌道自由度 / 鉄系超伝導 / 異方的超伝導 / ネマティシティ / 量子臨界点 / 準粒子励起 / ネマティック転移 / 高磁場超伝導相 / 多バンド超伝導 / 熱ホール効果 / 準粒子散乱 / ネマティック量子臨界点 / シャロウバンド物質 / ディラック電子 / ベリー位相

Outline of Final Research Achievements

The superconducting semimetal FeSe has been found to be deep inside the BCS-BEC crossover regime. One of the significant achievements of this project is our successful growth of clean single crystals of FeSe1-xSx superconductors. Based on that, we have investigated their exotic electronic state and quantum condensate. In FeSe, experimental signatures of preformed Cooper pairing and emergence of a distinct field-induced superconducting phase with an unprecedented large spin imbalance have been discovered. In FeSe1-xSx superconductors, a novel type of quantum critical point (QCP) of pure nematic order without accompanying other orders is discovered. Moreover, a dramatic change in the superconducting gap structure is found across the nematic QCP of FeSe1-xSx. These fruitful findings obtained in this project provide pivotal information towards the understanding of exotic superconductors.

Research Products

• [Int'l Joint Research] Dresden High Magnetic Field Laboratory/Karlsruhe Institute of Technology(Germany)
• [Int'l Joint Research] Universite Paris Diderot(France)
• [Int'l Joint Research] Chinese Academy of Sciences(China)
• [Int'l Joint Research] LNCMI Toulouse/CNRS/ESPCI-ParisTech(フランス)
• [Int'l Joint Research] Karlsruhe Institute of Technology/Dresden High Magnetic Field Laboratory/Technische Universitat Dresden(ドイツ)
• [Int'l Joint Research] Peking University/Chinese Academy of Sciences(中国)
• [Int'l Joint Research] National High Magnetic Field Laboratoly/Rice University/Florida State University(米国)
• [Int'l Joint Research] University of Oxford(英国)
• [Int'l Joint Research]
• [Journal Article] Superconducting gap anisotropy sensitive to nematic domains in FeSe (2018)
  • Author(s): Hashimoto Takahiro、Ota Yuichi、Yamamoto Haruyoshi Q.、Suzuki Yuya、Shimojima Takahiro、Watanabe Shuntaro、Chen Chuangtian、Kasahara Shigeru、Matsuda Yuji、Shibauchi Takasada、Okazaki Kozo、Shin Shik
  • Journal Title: Nature Communications Volume: 9 Issue: 1 Pages: 282-282
  • DOI: 10.1038/s41467-017-02739-y
  • NAID: 120006529718
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Abrupt change of the superconducting gap structure at the nematic critical point in FeSe1?xSx (2018)
  • Author(s): Sato Yuki、Kasahara Shigeru、Taniguchi Tomoya、Xing Xiangzhuo、Kasahara Yuichi、Tokiwa Yoshifumi、Yamakawa Youichi、Kontani Hiroshi、Shibauchi Takasada、Matsuda Yuji
  • Journal Title: Proceedings of the National Academy of Sciences Volume: 115 Issue: 6 Pages: 1227-1231
  • DOI: 10.1073/pnas.1717331115
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] In situ STM observation of nonmagnetic impurity effect in MBE-grown CeCoIn5 films (2018)
  • Author(s): M. Haze, Y. Torii, R. Peters, S. Kasahara, Y. Kasahara, T. Shibauchi, T. Terashima, Y. Matsuda
  • Journal Title: Journal of the Physical Society of Japan Volume: 87 Issue: 3 Pages: 034702-034702
  • DOI: 10.7566/jpsj.87.034702
  • NAID: 210000134739
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Impact of Disorder on the Superconducting Phase Diagram in BaFe2(As1-xPx)2 (2017)
  • Author(s): Y. Mizukami, M. Konczykowski, K. Matsuura, T. Watashige, S. Kasahara, Y. Matsuda, and T. Shibauchi
  • Journal Title: J. Phys. Soc. Jpn. Volume: 86 Issue: 8 Pages: 083706-083706
  • DOI: 10.7566/jpsj.86.083706
  • NAID: 210000134466
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Weakening of the diamagnetic shielding in FeSe1?xSx at high pressures (2017)
  • Author(s): Yip K. Y.、Chan Y. C.、Niu Q.、Matsuura K.、Mizukami Y.、Kasahara S.、Matsuda Y.、Shibauchi T.、Goh Swee K.
  • Journal Title: Physical Review B Volume: 96 Issue: 2
  • DOI: 10.1103/physrevb.96.020502
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Thermodynamic evidence for a nematic phase transition at the onset of the pseudogap in YBa2Cu3Oy (2017)
  • Author(s): Y. Sato, S. Kasahara, H. Murayama, Y. Kasahara, E-G. Moon, T. Nishizaki, T. Loew, J. Porras, B. Keimer, T. Shibauchi and Y. Matsuda
  • Journal Title: Nature Physics Volume: 13 Issue: 11 Pages: 1074-1078
  • DOI: 10.1038/nphys4205
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Maximizing Tc by tuning nematicity and magnetism in FeSe1x Sx superconductors (2017)
  • Author(s): Matsuura K.、Mizukami Y.、Arai Y.、Sugimura Y.、Maejima N.、Machida A.、Watanuki T.、Fukuda T.、Yajima T.、Hiroi Z.、Yip K. Y.、Chan Y. C.、Niu Q.、Hosoi S.、Ishida K.、Mukasa K.、Kasahara S.、Cheng J.-G.、Goh S. K.、Matsuda Y.、Uwatoko Y.、Shibauchi T.
  • Journal Title: Nature Communications Volume: 8 Issue: 1 Pages: 1143-1143
  • DOI: 10.1038/s41467-017-01277-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Quasiparticle Excitations in the Superconducting State of FeSe Probed by Thermal Hall Conductivity in the Vicinity of the BCS-BEC Crossover (2017)
  • Author(s): T. Watashige, S. Arsenijevic, T. Yamashita, D. Terazawa, T. Onishi, L. Opherden, S. Kasahara, Y. Tokiwa, Y. Kasahara, T. Shibauchi, H. v. Lohneysen, J. Wosnitza, and Y. Matsuda,
  • Journal Title: J. Phys. Soc. Jpn. Volume: 86 Issue: 1 Pages: 014707-014707
  • DOI: 10.7566/jpsj.86.014707
  • NAID: 40021057689
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Giant superconducting fluctuations in the compensated semimetal FeSe at the BCS-BEC crossover (2016)
  • Author(s): S. Kasahara, T. Yamashita, A. Shi, R. Kobayashi, Y. Shimoyama, T. Watashige, K. Ishida, T. Terashima, T Wolf, F. Hardy, C. Meingast, H. v. Lohneysen, A. Levchenko, T. Shibauchi and Y. Matsuda
  • Journal Title: Nature Communications Volume: 7 Issue: 1 Pages: 12843-12843
  • DOI: 10.1038/ncomms12843
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Diamagnetic Vortex Barrier Stripes in Underdoped BaFe2(As1-xPx)2 (2016)
  • Author(s): A. Yagil, Y. Lamhot, A. Almoalem, S. Kasahara, T. Watashige, T. Shibauchi, Y. Matsuda, and O. M. Auslaender
  • Journal Title: Physical Review B Volume: 94 Issue: 6 Pages: 064510-064510
  • DOI: 10.1103/physrevb.94.064510
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Charge induced nematicity in FeSe (2016)
  • Author(s): P. Massat, D. Farina, I. Paul, S. Karlsson, P. Strobel, P. Toulemonde, M.-A. Measson, M. Cazayous, A. Sacuto, S. Kasahara, T. Shibuachi, Y. Matsuda, Y. Gallais
  • Journal Title: Proceedings of the National Academy of Sciences of the United States of America Volume: 113 Issue: 33 Pages: 9177-9181
  • DOI: 10.1073/pnas.1606562113
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe (2016)
  • Author(s): J. P. Sun, K. Matsuura, G. Z. Ye, Y. Mizukami, M. Shimozawa, K. Matsubayashi, M. Yamashita, T. Watashige, S. Kasahara, Y. Matsuda, J.-Q. Yan, B. C. Sales, Y. Uwatoko, J.-G. Cheng, and T. Shibauch
  • Journal Title: Nature Communication Volume: 7 Issue: 1 Pages: 12146-12146
  • DOI: 10.1038/ncomms12146
  • NAID: 120006335661
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Nematic Quantum Critical Point without Magnetism in FeSe1-xSx Superconductors (2016)
  • Author(s): S. Hosoi, K. Matsuura, K. Ishida, H. Wang, Y. Mizukami, T. Watashige, S. Kasahara, Y. Matsuda, and T. Shibauchi
  • Journal Title: Proceedings of the National Academy of Sciences of the United States of America Volume: 113 Issue: 29 Pages: 8139-8143
  • DOI: 10.1073/pnas.1605806113
  • NAID: 120006347247
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Magnetotransport study of the pressure-induced antiferromagnetic phase in FeSe (2016)
  • Author(s): T. Terashima, N. Kikugawa, S. Kasahara, T. Watashige, Y. Matsuda, T. Shibauchi, a S. Uji
  • Journal Title: Physical Review B Volume: 93 Issue: 18 Pages: 180503-180503
  • DOI: 10.1103/physrevb.93.180503
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Nematic Magnetoelastic Effect Contrasted between Ba(Fe1-xCox)2As2 and FeSe (2016)
  • Author(s): Y. Hu, X. Ren, R. Zhang, H. Luo, S. Kasahara, T. Watashige, T. Shibauchi, P. Dai, Y. Zhang, Y. Matsuda, and Y. Li
  • Journal Title: Phys. Rev. B Volume: 93 Issue: 6 Pages: 060504-060504
  • DOI: 10.1103/physrevb.93.060504
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Fermi surface reconstruction in FeSe under high pressure (2016)
  • Author(s): Taichi Terashima, Naoki Kikugawa, Andhika Kiswandhi, David Graf, Eun-Sang Choi, James S. Brooks, Shigeru Kasahara, Tatsuya Watashige, Yuji Matsuda, Takasada Shibauchi, Thomas Wolf, Anna E. Bohmer, Frederic Hardy, Christoph Meingast, Hilbert v. Lohneysen, and Shinya Uji
  • Journal Title: Phys. Rev. B Volume: 93 Issue: 9 Pages: 094505-094505
  • DOI: 10.1103/physrevb.93.094505
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Pressure-Induced Antiferromagnetic Transition and Phase Diagram in FeSe (2015)
  • Author(s): Taichi Terashima, Naoki Kikugawa, Shigeru Kasahara, Tatsuya Watashige, Takasada Shibauchi, Yuji Matsuda, Thomas Wolf, Anna E. Bohmer, Frederic Hardy, Christoph Meingast, Hilbert v. Lohneysen, and Shinya Uji
  • Journal Title: J. Phys. Soc. Jpn. Volume: 84 Issue: 6 Pages: 063701-063701
  • DOI: 10.7566/jpsj.84.063701
  • NAID: 40020491106
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Optical conductivity evidence of clean-limit superconductivity in LiFeAs (2015)
  • Author(s): R. P. S. M. Lobo, G. Chanda, A. V. Pronin, J. Wosnitza, S. Kasahara, T. Shibauchi, and Y. Matsuda
  • Journal Title: Physical Review B Volume: 91 Issue: 17 Pages: 174509-174509
  • DOI: 10.1103/physrevb.91.174509
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Dichotomy between the Hole and Electrons Behavior in the Multiband FeSe Probed by Ultra High Magnetic Fields (2015)
  • Author(s): M. D. Watson, T. Yamashita, S. Kasahara, W. Knafo, M. Nardone, J. Beard, F. Hardy, A. McCollam, A. Narayanan, S. F. Blake, T. Wolf, A. A. Haghighirad, C. Meingast, A. J. Schofield, H. von Lohneysen, Y. Matsuda, A. I. Coldea, and T. Shibauchi
  • Journal Title: Phys. Rev. Lett. Volume: 115 Issue: 2 Pages: 027006-027006
  • DOI: 10.1103/physrevlett.115.027006
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Evidence for Time-Reversal Symmetry Breaking of the Superconducting State near Twin-Boundary Interfaces in FeSe Revealed by Scanning Tunneling Spectroscopy (2015)
  • Author(s): T. Watashige, Y. Tsutsumi, T. Hanaguri, Y. Kohsaka, S. Kasahara, A. Furusaki, M. Sigrist, C. Meingast, T. Wolf, H. v. Loehneysen, T. Shibauchi, and Y. Matsuda
  • Journal Title: Phys. Rev. X Volume: 5 Issue: 3 Pages: 031022-031022
  • DOI: 10.1103/physrevx.5.031022
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Critical Current Density, Vortex Dynamics, and Phase Diagram of Single-Crystal FeSe (2015)
  • Author(s): Y. Sun, S. Pyon, T. Tamegai, R. Kobayashi, T. Watashige, S. Kasahara, Y. Matsuda, and T. Shibauchi
  • Journal Title: Phys. Rev. B Volume: 95 Issue: 14 Pages: 144509-144509
  • DOI: 10.1103/physrevb.92.144509
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Enhancement of Critical Current Density and Mechanism of Vortex Pinning in H+-Irradiated FeSe Single Crystal (2015)
  • Author(s): Y. Sun, S. Pyon, T. Tamegai, R. Kobayashi, T. Watashige, S. Kasahara, Y. Matsuda, and T. Shibauchi
  • Journal Title: Applied Physics Express Volume: 8 Issue: 11 Pages: 113102-113102
  • DOI: 10.7567/apex.8.113102
  • NAID: 210000137708
  • Peer Reviewed
• [Journal Article] Momentum-Dependent Sign Inversion of Orbital Order in Superconducting FeSe (2015)
  • Author(s): Y. Suzuki, T. Shimojima, T. Sonobe, A. Nakamura, M. Sakano, H. Tsuji, J. Omachi, K. Yoshioka, M. Kuwata-Gonokami, T. Watashige, R. Kobayashi, S. Kasahara, T. Shibauchi, Y. Matsuda, Y. Yamakawa, H. Kontani, and K. Ishizaka
  • Journal Title: Phys. Rev. B Volume: 92 Issue: 20 Pages: 205117-205117
  • DOI: 10.1103/physrevb.92.205117
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Abrupt Change of the Superconducting Gap Structure at the Nematic Quantum Critical Point in FeSe1-xSx (2018)
  • Author(s): Y. Sato, S. Kasahara, T. Taniguchi, X.Z. Xing, Y. Kasahara, Y. Tokiwa, Y. Yamakawa, H. Kontani, T. Shibauchi, Y. Matsuda
  • Organizer: American Physical Society, March Meeting,
• [Presentation] Two Distinct Superconducting Pairing States Divided by the Nematic End Point in FeSe1-xSx (2018)
  • Author(s): T. Hanaguri, K. Iwaya, Y. Kohsaka, T. Machida, T. Watashige, S. Kasahara, T. Shibauchi, Y. Matsuda
  • Organizer: American Physical Society, March Meeting,
• [Presentation] ネマティック転移を伴う擬ギャップ相 (2017)
  • Author(s): 笠原成
  • Organizer: 日本物理学会年次大会
  • Place of Presentation: 大阪大学
  • Year and Date: 2017-03-17
  • Invited
• [Presentation] BCS-BEC crossover in FeSe with small Fermi energies (2017)
  • Author(s): S. Kasahara
  • Organizer: American Physical Society (APS) March Meeting,
  • Place of Presentation: New Orleans, Louisiana, USA
  • Year and Date: 2017-03-13
  • Int'l Joint Research / Invited
• [Presentation] Quasiparticle excitations of FeSe in the vicinity of the BCS-BEC crossover (2017)
  • Author(s): S. Kasahara
  • Organizer: CEMS-QPEC Topical Meeting on Superconductivity under Extreme Conditions
  • Place of Presentation: The Univ. Tokyo
  • Year and Date: 2017-01-16
  • Int'l Joint Research / Invited
• [Presentation] Quasiparticle excitations of FeSe in the vicinity of the BCS-BEC crossover (2017)
  • Author(s): S. Kasahara
  • Organizer: The 16th International Workshop on Vortex Matter in Superconductors (VORTEX2017), Natal, Brazil.
  • Int'l Joint Research / Invited
• [Presentation] FeSe1-xSxにおける異方的超伝導ギャップ構造 (2017)
  • Author(s): 笠原成
  • Organizer: 京都大学・基研研究会 「超伝導研究の最先端： 多自由度、非平衡、電子相関、トポロジー、人工制御」
  • Invited
• [Presentation] 鉄系超伝導体Fe(Se,S)の超伝導ギャップ異方性 (2017)
  • Author(s): 谷口智哉, 佐藤雄貴, Xiangzhuo Xing, 笠原成, 常盤欣文, 笠原裕一, 芝内孝禎, 松田祐司
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] Fe(Se,S)のバンド構造と超伝導に対するネマティシティの効果 (2017)
  • Author(s): 花栗哲郎, 岩谷克也, 幸坂祐生, 町田理, 綿重達哉, 笠原成, 芝内孝禎, 松田祐司
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] 鉄系超伝導体FeSe1-xSxの温度・圧力・化学置換の三次元電子相図 (2017)
  • Author(s): 杉村優一, 松浦康平, 新井佑基, 向笠清隆, 水上雄太, 綿重達哉, 笠原成, 松田祐司, 上床美也, 芝内孝禎
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] FeSe1-xSx(x = 0.12)の核磁気共鳴 (2017)
  • Author(s): 桑山昂典, 藤原直樹, 松浦康平, 水上雄太, 笠原成, 松田祐司, 芝内孝禎, 上床美也
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] パルス電流を用いたFeSe単結晶の渦糸フロー測定 (2017)
  • Author(s): 高石浩行, 家永紘一郎, 金子真一, 笠原成, 松田祐司, 大熊哲
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] 高次高調波レーザー時間分解光電子分光法によるFeSeのコヒーレントフォノン観測 (2017)
  • Author(s): 鈴木剛, 染谷隆史, 橋本嵩広, 道前翔矢, 渡邉真莉A, 藤澤正美, 金井輝人, 石井順久, 板谷治郎, 芝内孝禎, 笠原成, 松田祐司, 岡崎浩三, 辛埴
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] レーザー励起光電子顕微鏡によるFeSeにおけるネマティック秩序のドメイン観察 (2017)
  • Author(s): 元結啓仁, 谷内敏之, 下志万貴博, 岡崎浩三, 笠原成, 芝内孝禎, 松田裕司, 辛埴
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] 銅酸化物高温超伝導体の擬ギャップとネマティック相転移 (2016)
  • Author(s): 笠原成
  • Organizer: 基研研究会 「超伝導研究の最先端：多自由度、非平衡、電子相関、トポロジー」
  • Place of Presentation: 京都大学基礎物理学研究所
  • Year and Date: 2016-10-10
  • Invited
• [Presentation] 銅酸化物超伝導体の擬ギャップとネマティック相転移 (2016)
  • Author(s): 笠原成
  • Organizer: 高温超伝導フォーラム第4回会合
  • Place of Presentation: 金沢勤労者プラザ
  • Year and Date: 2016-09-12
  • Invited
• [Presentation] Probing highly spin polarized superconducting state of FeSe in the BCS-BEC crossover (2016)
  • Author(s): S. Kasahara
  • Organizer: FFLO-Phase in Quantum Liquids, Quantum Gases, and Nuclear Matter (FFLO16)
  • Place of Presentation: Max Planck Institute for the Physics of Complex Systems (MPIPKS), Dresden, Germany
  • Year and Date: 2016-06-19
  • Int'l Joint Research / Invited
• [Presentation] FeSeの時間分解角度分解光電子分光 (2016)
  • Author(s): 鈴木裕也, 下志万貴博, 園部竜也, 中村飛鳥, 三石夏樹, 石田行章, 辛埴, 綿重達哉, 小林遼, 笠原成, 芝内孝禎, 松田祐司, 石坂香子
  • Organizer: 日本物理学会 第71回年次大会（2016年)
  • Place of Presentation: 東北学院大学 (宮城県)
  • Year and Date: 2016-03-19
• [Presentation] 中性子非弾性散乱から見た鉄系超伝導体FeSe のスピンネマティック感受率 (2016)
  • Author(s): 社本真一, 梶本亮一, 石角元志, 山川洋一, 綿重達哉, 笠原成, 中村充孝, 紺谷浩, 芝内孝禎, 松田祐司
  • Organizer: 日本物理学会 第71回年次大会（2016年)
  • Place of Presentation: 東北学院大学 (宮城県)
  • Year and Date: 2016-03-19
• [Presentation] 超精密磁気トルク測定でみたYBa2Cu3O7-δの擬ギャップ状態における回転対称性の破れ (2016)
  • Author(s): 佐藤雄貴, 笠原成, 笠原裕一, 芝内孝禎, 西嵜照和, 松田祐司
  • Organizer: 日本物理学会 第71回年次大会（2016年)
  • Place of Presentation: 東北学院大学 (宮城県)
  • Year and Date: 2016-03-19
• [Presentation] BCS-BECクロスオーバー (2016)
  • Author(s): 笠原成
  • Organizer: 日本物理学会 第71回年次大会（2016年)
  • Place of Presentation: 東北学院大学 (宮城県)
  • Year and Date: 2016-03-19
  • Invited
• [Presentation] ハイブリッド超格子CeRhIn5/CeCoIn5における量子臨界性 (2016)
  • Author(s): 石井智大, 戸田琳太郎, 鳥井陽平, 成塚政裕, 下澤雅明, 花岡洋祐, 笠原成, 常盤欣文, 笠原裕一, 芝内孝禎, 寺嶋孝仁, 松田祐司
  • Organizer: 日本物理学会 第71回年次大会（2016年)
  • Place of Presentation: 東北学院大学 (宮城県)
  • Year and Date: 2016-03-19
• [Presentation] ハイブリット超格子CeRhIn5/CeCoIn5の超伝導特性 (2016)
  • Author(s): 鳥井陽平, 石井智大, 戸田琳太郎, 成塚政裕, 下澤雅明, 花岡洋祐, 笠原成, 常盤欣文, 笠原裕一, 芝内孝禎, 寺嶋孝仁, 松田祐司
  • Organizer: 日本物理学会 第71回年次大会（2016年)
  • Place of Presentation: 東北学院大学 (宮城県)
  • Year and Date: 2016-03-19
• [Presentation] FeSe純良単結晶における高圧下電気抵抗率測定 (2016)
  • Author(s): 松浦康平, 水上雄太, 下澤雅明, 松林和幸, 山下穣, 上床美也, 綿重達哉, 笠原成, J. P. Sun, G. Z. Ye, J. Q. Yan, J.-G. Cheng, 松田祐司, 芝内孝禎
  • Organizer: 日本物理学会 第71回年次大会（2016年)
  • Place of Presentation: 東北学院大学 (宮城県)
  • Year and Date: 2016-03-19
• [Presentation] FeSe純良単結晶における高圧下X線回折 (2016)
  • Author(s): 水上雄太, 松浦康平, 細井優, 綿重達哉, 笠原成, 前島尚行, 町田晃彦, 綿貫徹, 福田竜生, 松田祐司, 芝内孝禎
  • Organizer: 日本物理学会 第71回年次大会（2016年)
  • Place of Presentation: 東北学院大学 (宮城県)
  • Year and Date: 2016-03-19
• [Presentation] Nematic magnetoelastic effect contrasted between Ba(Fe1-xCox)2As2 and FeSe (2016)
  • Author(s): Yuwen Hu, Xiao Ren, Rui Zhang, Huiqian Luo, Shigeru Kasahara, Tatsuya Watashige, Takasada Shibauchi, Pengcheng Dai, Yan Zhang, Yuji Matsuda, Yuan Li
  • Organizer: APS March Meeting 2016
  • Place of Presentation: Baltimore (USA)
  • Year and Date: 2016-03-14
  • Int'l Joint Research
• [Presentation] Berry's phase observed in the ordered state of Fe(Se,S) (2016)
  • Author(s): S. Kasahara, T. Yamashita, Y. Shimoyama, T. Watashige, Y. Matsuda, J. Beard, M. Nardone, W. Knafo, M.D. Watson, N.R. Davis, A.I. Coldea, M. Suzuki, R. Arita, , H. Ikeda, T. Shibauchi
  • Organizer: APS March Meeting 2016
  • Place of Presentation: Baltimore (USA)
  • Year and Date: 2016-03-14
  • Int'l Joint Research
• [Presentation] A shift of the phase diagram in BaFe2(As1-xPx)2 by controlled disorder (2016)
  • Author(s): Yuta Mizukami, Kohei Matsuura, Marcin Konczykowski, Tatsuya Watashige, Shigeru Kasahara, Yuji Matsuda, Takasada Shibauchi
  • Organizer: APS March Meeting 2016
  • Place of Presentation: Baltimore (USA)
  • Year and Date: 2016-03-14
  • Int'l Joint Research
• [Presentation] Nematic quantum criticality in FeSe$_{1-}_{x}$Sx revealed by elastoresistance measurements (2016)
  • Author(s): Suguru Hosoi, Kohei Matsuura, Hao Wang, Kousuke Ishida, Yuta Mizukami, Tatsuya Watashige, Shigeru Kasahara, Yuji Matsuda, Takasada Shibauchi
  • Organizer: APS March Meeting 2016
  • Place of Presentation: Baltimore (USA)
  • Year and Date: 2016-03-14
  • Int'l Joint Research
• [Presentation] レーザー角度分解光電子分光によるFeSeの軌道秩序状態における超伝導ギャップ異方性の観測 (2015)
  • Author(s): 橋本嵩広, 大田由一, 山本遇哲, 鈴木裕也, 下志万貴博, 渡部俊太郎, C.-T.Chen, 綿重達也, 小林遼, 笠原成, 松田祐司, 芝内孝禎, A. Bohmer, T. Wolf, P. Adelmann, C. Meingast, H. v. Loehneysen, 岡崎浩三, 辛埴
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 角度分解光電子分光によるFe(Se,S)における軌道秩序相の決定 (2015)
  • Author(s): 鈴木裕也, 下志万貴博, 園部竜也, W. Malaeb, 辛埴, 綿重達哉, 小林遼, 笠原成, 芝内孝禎, 松田祐司, 石坂香子
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] CeCoIn5系トリコロール超格子によるグローバルな空間反転対称性の破れの導入 (2015)
  • Author(s): 成塚政裕, 遠藤僚太, 戸田琳太郎, 石井智大, 下澤雅明, 花岡洋祐, 笠原成, 常盤欣文, 笠原裕一, 芝内孝禎, 寺嶋孝仁, 松田祐司
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 重い電子系ハイブリット超格子CeRhIn5/CeCoIn5における輸送測定 (2015)
  • Author(s): 石井智大, 遠藤僚太, 戸田琳太郎, 成塚政裕, 下澤雅明, 花岡洋祐, 笠原成, 常盤欣文, 笠原裕一, 芝内孝禎, 寺嶋孝仁, 松田祐司
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 重い電子系化合物CeCoIn5エピタキシャル薄膜のSTM/STS測定II (2015)
  • Author(s): 花岡洋祐, 綿重達哉, 成塚政裕, 笠原成, 笠原裕一, 芝内孝禎, 寺嶋孝仁, 花栗哲郎, 松田祐司
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 電子線照射により制御した不純物散乱の量子臨界点と超伝導相への影響 (2015)
  • Author(s): 水上雄太, 松浦康平, M. Konczykowski, 綿重達哉, 笠原成, 松田祐司, 芝内孝禎
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 鉄系超伝導体Fe(Se, S)におけるネマティック感受率測定 (2015)
  • Author(s): 細井優, 蔵田聡信, 河智史朗, 水上雄太, 綿重達哉, 笠原成, 徳永将史, 松田裕司, 芝内孝禎
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] Fe(Se,S)の秩序相における量子振動とベリー位相の観測 (2015)
  • Author(s): 笠原成, 山下卓也, 下山祐介, 綿重達哉, 芝内孝禎, 松田祐司, William Knafo, Jerome Beard, Marc Nardone, Matthew Watoson, Amalia Coldea, Christoph Meingast, Thomas Wolf, Hilbert v. Lohneysen
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 走査型SQUID顕微鏡システムの試作と検証 (2015)
  • Author(s): 下澤雅明, 鈴木喜貴, 杉井かおり, 山下穣, 小山大介, 河端美樹, 河合淳, 笠原成, 松田祐司, 末吉孝充, 水上雄太, 芝内孝禎
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] FeSeの圧力相図 (2015)
  • Author(s): 寺嶋太一, 菊川直樹, 笠原成, 綿重達哉, 芝内孝禎, 松田祐司, Thomas Wolf, Anna E. Bohmer, Frederic Hardy, Christoph Meingast, Hilbert v. Lohneysen, 宇治進也
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 鉄系超伝導体FeSeにおける圧力下電子相図 (2015)
  • Author(s): 松浦康平, 水上雄太, 下澤雅明, 松林和幸, 山下穣, 上床美也, T. Wolf, H. v. Lohneysen, 綿重達哉, 笠原成, 松田祐司, 芝内孝禎
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 鉄系超伝導体FeSeの中性子非弾性散乱 (2015)
  • Author(s): 社本真一, 綿重達哉, 石角元志, 樹神克明, 梶本亮一, 中村充孝, 笠原成, 芝内孝禎, 松田祐司, 森道康
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] 鉄系超伝導体Fe(Se1-xSx)の超音波測定 (2015)
  • Author(s): 納口昇也, 赤坂直哉, 堀越啓太, 石塚紘晃, 中村光輝, 中西良樹, 綿重達哉, 笠原成, 芝内孝禎, 松田祐司, 吉澤正人
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 (大阪府)
  • Year and Date: 2015-09-16
• [Presentation] Electronic structure and giant superconducting fluctuations in FeSe (2015)
  • Author(s): Shigeru Kasahara
  • Organizer: Workshop on the two-dimensional chalcogenides: exotic electronic orders, superconductivity and magnetism
  • Place of Presentation: IFW Dresden, Germany.
  • Year and Date: 2015-08-31
  • Int'l Joint Research / Invited
• [Presentation] Fermi surface in FeSe: Quantum oscillation measurements (2015)
  • Author(s): Shigeru Kasahara
  • Organizer: The 11th International Conference on Materials & Mechanisms of Superconductivity (M2S)
  • Place of Presentation: Geneva, Switzerland.
  • Year and Date: 2015-08-23
  • Int'l Joint Research
• [Presentation] Electronic structure and the physics of the BCS-BEC crossover in FeSe (2015)
  • Author(s): Shigeru Kasahara
  • Organizer: Energy Materials Nanotechnology (EMN) Workshop on Iron and Iridium based Superconductivit
  • Place of Presentation: Qingdao, China.
  • Year and Date: 2015-06-14
  • Int'l Joint Research / Invited
• [Remarks] 京都大学量子凝縮物性研究室
  • URL: http://kotai2.scphys.kyoto-u.ac.jp/index.php?Top
• [Remarks] 京都大学量子凝縮物性研究室
  • URL: http://kotai2.scphys.kyoto-u.ac.jp/
• [Remarks] 京都大学 量子凝縮物性研究室
  • URL: http://kotai2.scphys.kyoto-u.ac.jp/