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Studies on unusual normal state properties and spin/orbital physics in iron-based superconductors

Research Project

Project/Area Number 24684026
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypePartial Multi-year Fund
Research Field Condensed matter physics II
Research InstitutionKyoto University

Principal Investigator

KASAHARA SHIGERU  京都大学, 理学(系)研究科(研究院), 助教 (10425556)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥27,300,000 (Direct Cost: ¥21,000,000、Indirect Cost: ¥6,300,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥21,710,000 (Direct Cost: ¥16,700,000、Indirect Cost: ¥5,010,000)
Keywords鉄系超伝導 / 量子臨界点 / 電子ネマティック状態 / 擬ギャップ / 多軌道自由度 / 超シャロウバンド / BCS-BECクロスオーバー / 新奇超伝導状態 / 軌道秩序 / 量子振動 / フェルミエネルギー / 新奇量子凝縮状態 / 量子臨界性 / ネマティック秩序 / 超伝導ギャップ構造 / スピン揺らぎ / 強相関電子系 / 超伝導揺らぎ / 非従来型超伝導
Outline of Final Research Achievements

In iron-based superconductors, spin and orbital degrees of freedom play an important role. An important task in the community is thus to uncover the unusual normal state properties related to the spin/orbital degrees of freedom. In this work, we have focused on the studies of quantum critical point (QCP) hidden beneath the superconducting dome as well as the electronic nematic transition above there. Our studies based on clean single crystals of BaFe2(As1-xPx)2 show the first evidence for the QCP beneath the superconducting dome, as well as the nematic transition in the normal state. These findings provide important clues for the understanding of iron-based superconductors. In the last year of this project, we have also investigated anomalous electronic properties and quantum condensate in iron-chalchogenides. In newly developed single crystals of FeSe, a cross-over from weakly coupled BCS state to tightly bound BEC state, as well as a possible new high-field phase have been found.

Report

(4 results)
  • 2015 Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (87 results)

All 2015 2014 2013 2012 Other

All Journal Article (18 results) (of which Peer Reviewed: 18 results,  Open Access: 5 results,  Acknowledgement Compliant: 3 results) Presentation (68 results) (of which Invited: 4 results) Remarks (1 results)

  • [Journal Article] Field-Induced Superconducting Phase of FeSe in the BCS-BEC Crossover2014

    • Author(s)
      S. Kasahara, T. Watashige, T. Hanaguri, Y. Kohsaka, T. Yamashita, Y. Shimoyama, Y. Mizukami, R. Endo, H. Ikeda, K. Aoyama, T. Terashima, S. Uji, T. Wolf, H. v. Loehneysen, T. Shibauchi, Y. Matsuda
    • Journal Title

      Proceedings of the National Academy of Sciences of the United States of America

      Volume: 111 Issue: 46 Pages: 16309-16313

    • DOI

      10.1073/pnas.1413477111

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements2014

    • Author(s)
      Taichi Terashima, Naoki Kikugawa, Andhika Kiswandhi, Eun-Sang Choi, James S. Brooks, Shigeru Kasahara, Tatsuya Watashige, Hiroaki Ikeda, Takasada Shibauchi, Yuji Matsuda, Thomas Wolf, Anna E. Bohmer, Frederic Hardy, Christoph Meingast, Hilbert v. Lohneysen, Michi-To Suzuki, Ryotaro Arita, Shinya Uji
    • Journal Title

      Physical Review B

      Volume: 90 Issue: 14 Pages: 144517-144517

    • DOI

      10.1103/physrevb.90.144517

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct Observation of Lattice Symmetry Breaking at the Hidden-Order Transition in URu2Si22014

    • Author(s)
      S. Tonegawa, S. Kasahara, T. Fukuda, K. Sugimoto, N. Yasuda, Y. Tsuruhara, D. Watanabe, Y. Mizukami, Y. Haga, T. D. Matsuda, E. Yamamoto, Y. Onuki, H. Ikeda, Y. Matsuda, and T. Shibauchi,
    • Journal Title

      Nat. Commun.

      Volume: 5 Issue: 1 Pages: 4188-4188

    • DOI

      10.1038/ncomms5188

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] On Infrared Pseudogap in Cuprate and Pnictide High-Temperature Superconductors2014

    • Author(s)
      S. J. Moon, Y. S. Lee, A. A. Schafgans, A. V. Chubukov, S. Kasahara, T. Shibauchi, T. Terashima, Y. Matsuda, M. A. Tanatar, R. Prozorov, A. Thaler, P. C. Canfield, S. L. Bud'ko, A. S. Sefat, D. Mandrus, K. Segawa, Y. Ando, D. N. Basov,
    • Journal Title

      Phys. Rev. B

      Volume: 90 Issue: 1 Pages: 014503-014503

    • DOI

      10.1103/physrevb.90.014503

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Disorder-Induced Topological Change of the Superconducting Gap Structure in Iron Pnictides2014

    • Author(s)
      Y. Mizukami, M. Konczykowski, Y. Kawamoto, S. Kurata, S. Kasahara, K. Hashimoto, V. Mishra, A. Kreisel, Y. Wang, P. J. Hirschfeld, Y. Matsuda, and T. Shibauchi,
    • Journal Title

      Nat. Commun.

      Volume: 5 Issue: 1 Pages: 5657-5657

    • DOI

      10.1038/ncomms6657

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Anisotropy of the superconducting gap in the iron-based superconductor BaFe2(As1-xPx)22014

    • Author(s)
      T. Yoshida, S. Ideta, T. Shimojima, W. Malaeb, H. Suzuki, I. Nishi, A. Fujimori, S. Shin, et al.
    • Journal Title

      Sci. Rep.

      Volume: 4 Issue: 1 Pages: 7292-7292

    • DOI

      10.1038/srep07292

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anomalous Critical Fields in Quantum Critical Superconductors2014

    • Author(s)
      C. Putzke, P. Walmsley, J. D. Fletcher, L. Malone, D. Vignolles, C. Proust, S. Badoux, P. See, H. E. Beere, D. A. Ritchie, S. Kasahara, Y. Mizukami, T. Shibauchi, Y. Matsuda, and A. Carrington,
    • Journal Title

      Nat. Commun.

      Volume: 5 Issue: 1 Pages: 5679-5679

    • DOI

      10.1038/ncomms6679

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Pseudogap formation above the superconducting dome in iron pnictides2014

    • Author(s)
      T. Shimojima, T. Sonobe, W. Malaeb, K. Shinada, A. Chainani, S. Shin, T. Yoshida, S. Ideta, A. Fujimori, et al.
    • Journal Title

      Phys Rev. B

      Volume: 89 Issue: 4 Pages: 045101-045101

    • DOI

      10.1103/physrevb.89.045101

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Doping evolution of the quasiparticle excitations in heavily hole-doped Ba_<1-x>KxFe_2As_2 : Apossible superconducting gap with sign-reversal between hole pockets2014

    • Author(s)
      D. Watanabe, T. Yamashita, Y. Kawamoto, S. Kurata, Y. Mizukami, et al.
    • Journal Title

      Physieal Review B

      Volume: 89 Issue: 11 Pages: 115112-115112

    • DOI

      10.1103/physrevb.89.115112

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Normal-state spin dynamics in the iron-pnictide superconductors BaFe_2 (A_S<1-x>P_x)_2 and Ba (Fe_<1-x>Co_x)_2AS_2 probed with NMR measurements2013

    • Author(s)
      Y. Nakai, et aL.
    • Journal Title

      Physical Review B

      Volume: 87 Issue: 17 Pages: 174507-174507

    • DOI

      10.1103/physrevb.87.174507

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quasiparticle Mass Enhancement Close to the Quantum critical Point in BaFe_2(As_<1-x>Px)_22013

    • Author(s)
      P. Walmsley, C. Putzke, L. Mal0ne, I. Guillamon, D. Vignolles, C. Proust, A. I. Coldga. M. D. WatSon, S. Kasahara, Y. Mizukami, et al.
    • Journal Title

      Physical Review Letter

      Volume: 109 Issue: 25 Pages: 257002-257002

    • DOI

      10.1103/physrevlett.110.257002

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interplane resistivity of isovalent doped BaFe2(As1-xPx)22013

    • Author(s)
      M. A. Tanatar
    • Journal Title

      Phys. Rev. B

      Volume: 87 Issue: 10 Pages: 104506-104506

    • DOI

      10.1103/physrevb.87.104506

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Disorder, critical currents, and vortex pinning energies in isovalently substituted BaFe2(As1-xPx)22013

    • Author(s)
      S. Demirdis
    • Journal Title

      Phys. Rev. B

      Volume: 87 Issue: 9 Pages: 94506-94506

    • DOI

      10.1103/physrevb.87.094506

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gradual suppression of antiferromagnetism in BaFe_2(As_<1-x>P_x)_2 : Zero-temperature evidence for a quantum critical point2012

    • Author(s)
      T. Iye, et al.,
    • Journal Title

      Physical Review B

      Volume: 85 Issue: 18 Pages: 184505-184505

    • DOI

      10.1103/physrevb.85.184505

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electronic nematicity above the structural and superconducting transition in BaFe2 (As1-xPx)22012

    • Author(s)
      S. Kasahara, et al.
    • Journal Title

      Nature

      Volume: 486 Issue: 7403 Pages: 382-385

    • DOI

      10.1038/nature11178

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe_2(As_<1-x>P_x)_22012

    • Author(s)
      K. Hashimoto, K. Cho, T. Shibauchi, S. Kasahara, Y. Mizukami, et al.
    • Journal Title

      Science

      Volume: 336 Issue: 6088 Pages: 1554-1557

    • DOI

      10.1126/science.1219821

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Infrared Measurement of the Pseudogap of P-Doped and Co-Doped High-T emperature BaFe2As2 Superconductors2012

    • Author(s)
      S. J. Moon, A. A. Schafgans, S. Kasahara, T. Shibauchi, T. Terashima, Y. Matsuda, M. A. Tanatar, R. Prozorov, A. Thaler, P. C. Canfield, A. S. Sefat, D. Mandrus, and D. N. Basov
    • Journal Title

      Phys. Rev. Lett

      Volume: 109

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermodynamic phase diagram, phase competition, and uniaxial pressure effects in BaFe2(As1-xPx)2 studied by thermal expansion2012

    • Author(s)
      A. E. Bohmer
    • Journal Title

      Phys. Rev. B

      Volume: 86 Issue: 9 Pages: 94521-94521

    • DOI

      10.1103/physrevb.86.094521

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Fine tuning of the quantum criticality in the heavy fermion superlattices CeRhIn 5/YbRhIn 52015

    • Author(s)
      Ryota Endo, Rintaro Toda, Yousuke Hanaoka, Masaaki Shimozawa, Takuya Yamashita, Yusuke Shimoyama, Shigeru Kasahara, Yoshi Tokiwa, Yuichi Kasahara, Takasada Shibauchi, Takahito Terashima, Yuji Matsuda
    • Organizer
      APS March Meeting 2015
    • Place of Presentation
      San Antonio, TX, USA
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 電子線照射により不純物散乱を導入した鉄系超伝導体BaFe2(As1-xPx)2における電子相図2015

    • Author(s)
      松浦康平,藏田聡信A,水上雄太,M. Konczykowski,綿重達哉,笠原成,松田祐司,芝内孝禎
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学 (東京都)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 鉄系超伝導体FeSeにおけるネマティック感受率測定2015

    • Author(s)
      細井優,藏田聡信,松浦康平,小林遼,水上雄太,綿重達哉,笠原成,松田祐司,芝内孝禎
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学 (東京都)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] FeSe純良単結晶における磁気トルク測定2015

    • Author(s)
      笠原成,小林遼,下山祐介,綿重達也,山下卓也,芝内孝禎,松田祐司,Thomas Wolf,Hilbert v. Lohneysen
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学 (東京都)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] AFe2As2(A=K, Rb ,Cs)のネルンスト係数、ゼーベック係数の測定2015

    • Author(s)
      下山祐介,笠原成,山下卓也,寺澤大樹,T. Wolf,H. v. Lohneysen,芝内孝禎,笠原裕一,松田祐司
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学 (東京都)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 重い電子系人工超格子CeRhIn5/YbRhIn5における量子臨界性の精密制御2015

    • Author(s)
      遠藤僚太,戸田琳太郎,花岡洋祐,下澤雅明A,山下卓也,下山祐介,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70回年次大会
    • Place of Presentation
      早稲田大学 (東京都)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 重い電子系化合物CeCoIn5エピタキシャル薄膜のSTM/STS測定2015

    • Author(s)
      綿重達哉,花岡洋祐,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 第70回年次大会
    • Place of Presentation
      早稲田大学 (東京都)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 角度分解光電子分光で見たFeSeの常伝導電子状態(2)2015

    • Author(s)
      鈴木裕也,下志万貴博,園部竜也,中村飛鳥,坂野昌人,大間知潤子,吉岡孝高,五神真,小野寛太,組頭広志,A. Bohmer,F. Hardy,T. Wolf,C. Meingast,H. v. Lohneysen,笠原成,池田浩章,芝内孝禎,松田祐司,石坂香子
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学 (東京都)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] FeSeの超伝導ギャップのFriedel振動2015

    • Author(s)
      花栗哲郎,綿重達哉,幸坂祐生,岩谷克也,町田理,笠原成,小林遼,芝内孝禎,松田祐司,A. Boehmer,T. Wolf,C. Meingast,H. v. Loehneysen
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学 (東京都)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] Preformed pairing in superconducting FeSe in the BCS-BEC cross-over regime2015

    • Author(s)
      S. Kasahara, Y. Shimoyama, R. Kobayashi, T. Yamashita, T. Watashige, Y. Matsuda, T. Shibauchi, T. Wolf, A. E. Bohmer, F. Hardy, C. Meingast, H. v. Lohneysen
    • Organizer
      APS March Meeting 2015
    • Place of Presentation
      San Antonio, TX, USA
    • Year and Date
      2015-03-02 – 2015-03-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] Friedel oscillations of the superconducting gap in FeSe2015

    • Author(s)
      T. Hanaguri, T. Watashige, Y. Kohsaka, K. Iwaya, T. Machida, T. Shibauchi, R. Kobayashi, S. Kasahara, Y. Matsuda, A. Bohmer, T. Wolf, C. Meingast, H. v. Lohneysen
    • Organizer
      APS March Meeting 2015
    • Place of Presentation
      San Antonio, TX, USA
    • Year and Date
      2015-03-02 – 2015-03-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] Local characterization of superconductivity in BaFe 2(As1−xPx)22015

    • Author(s)
      Ophir Auslaender, Yuval Lamhot, Alon Yagil, Nadav Shapira, Shigeru Kasahara, Tatsuya Watashige, Takasada Shibauchi, Yuji Matsuda
    • Organizer
      APS March Meeting 2015
    • Place of Presentation
      San Antonio, TX, USA
    • Year and Date
      2015-03-02 – 2015-03-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] Spin fluctuations-corrected DFT for Fe-based superconductors2015

    • Author(s)
      Luciano Ortenzi, Hlynur Gretarsson, S. Kasahara, Y. Matsuda, T. Shibauchi, K.D. Finkelstein, W. Wu, S.R. Julian, Young-June Kim, I.I. Mazin, Lilia Boeri
    • Organizer
      APS March Meeting 2015
    • Place of Presentation
      San Antonio, TX, USA
    • Year and Date
      2015-03-02 – 2015-03-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] FeSe におけるBCS-BECクロスオーバー領域の超伝導2014

    • Author(s)
      笠原成
    • Organizer
      基研研究会「多自由度電子状態と電子相関が生み出す新奇超伝導の物理」
    • Place of Presentation
      京都大学 基礎物理学研究所 (京都府)
    • Year and Date
      2014-10-21 – 2014-10-22
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] FeSe純良単結晶におけるパルス強磁場測定2014

    • Author(s)
      笠原成,山下卓也,下山祐介,綿重達也,小林遼,芝内孝禎,松田祐司,William Knafo,Mattew Watoson,Amalia Coldea,Frederic Hardy,Christoph Meingast,Thomas Wolf,Hilbert v. Lohneysen
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学 (愛知県)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] STM/STSで見たFeSeの渦糸芯における量子効果2014

    • Author(s)
      花栗哲郎,綿重達哉,幸坂祐生,岩谷克也,付英双,町田理,笠原成,渡辺大樹,水上雄太,三上拓也,川本雄太,蔵田聡,芝内孝禎,松田祐司,A. Boehmer,T. Wolf,C. Meingast,H. v. Loehneysen
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学 (愛知県)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] FeSeのネルンスト効果の観測2014

    • Author(s)
      下山祐介,山下卓也,遠藤僚太,綿重達哉,笠原成,小林遼,T. Wolf,H. v. Lohneysen,芝内孝禎,松田祐司
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学 (愛知県)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] 鉄系超伝導体FeSeの純良単結晶を用いた電気抵抗および常磁性帯磁率測定2014

    • Author(s)
      小林遼,綿重達哉,笠原成,T. Wolf,H. v. Lohneysen,池田浩章,芝内孝禎,松田祐司
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学 (愛知県)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] FeSeのSdH振動2014

    • Author(s)
      寺嶋太一,菊川直樹,Andhika Kiswandhi,Eun-Sang Choi,James S. Brooks,笠原成,綿重達哉,池田浩章,芝内孝禎,松田祐司,Thomas Wolf,Anna E. Bohmer,Fredric Hardy,Christoph Meingast,Hilbert v. Lohneysen,宇治進也
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学 (愛知県)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] 重い電子系CeRhIn5/YbRhIn5人工超格子を用いた量子臨界性制御2014

    • Author(s)
      花岡洋祐,遠藤僚太,戸田琳太郎,下澤雅明,笠原成,常盤欣文,芝内孝禎,寺嶋孝仁,松田祐司
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学 (愛知県)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] Superconductivity in FeSe with Extremely Small Fermi Energy2014

    • Author(s)
      Shigeru Kasahara
    • Organizer
      Energy Materials Nanotechnology (EMN) Workshop on Iron and Iridium based Superconductivity
    • Place of Presentation
      Cancun , Mexico
    • Year and Date
      2014-06-09 – 2014-06-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Optical conductivity of clean-limit superconductor LiFeAs2014

    • Author(s)
      R.P.S.M. Lobo, A.V. Pronin, G. Chanda, J. Wosnitza, S. Kasahara, T. Shibauchi, Y. Matsuda
    • Organizer
      APS March Meeting 2014
    • Place of Presentation
      Denver, Colorado (USA)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Influence of twin boundaries on superconducting gap nodes in FeSe single crystal studied by STM/STS2014

    • Author(s)
      T. Watashige, T. Hanaguri, Y. Kohsaka, K. Iwaya, Y. Fu, S. Kasahara D. Watanabe Y. Mizukami T. Mikami Y. Kawamoto S. Kurata T. Shibauchi Y. Matsuda, A.E. Boehmer, T. Wolf, C. Meingast, H. v. Loehneysen
    • Organizer
      APS March Meeting 2014
    • Place of Presentation
      Denver, Colorado (USA)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Quasi-particle interference and possible orbital order in FeSe2014

    • Author(s)
      T. Hanaguri, T. Watashige, Y. Kohsaka, K. Iwaya, Y. Fu, S. Kasahara D. Watanabe Y. Mizukami T. Mikami Y. Kawamoto S. Kurata T. Shibauchi Y. Matsuda, A.E. Boehmer, T. Wolf, C. Meingast, H. v. Loehneysen
    • Organizer
      APS March Meeting 2014
    • Place of Presentation
      Denver, Colorado (USA)
    • Related Report
      2013 Annual Research Report
  • [Presentation] he gap structure of BaFe 2(AsxP1-x)2 determined from specific heat measurements2014

    • Author(s)
      L. Malone, Y. Mizukami, P. Walmsley, C. Putzke, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, A. Carrington
    • Organizer
      APS March Meeting 2014
    • Place of Presentation
      Denver, Colorado (USA)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Anomalous behaviour of critical fields near a superconducting quantum critical point in BaFe2(As1-xPx)22014

    • Author(s)
      C. Putzke, A. Carrington, P. Walmsley, L. Malone, J.D. Fletcher, P. See, D. Vignolles, C. Proust, S. Badoux, S. Kasahara, Y. Mazukami, T. Shibauchi, Y. Matsuda
    • Organizer
      APS March Meeting 2014
    • Place of Presentation
      Denver, Colorado (USA)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Nodal superconducting state in clean single crystals of FeSe2014

    • Author(s)
      S. Kasahara, T. Mikami, Y. Kawamoto, S. Kurata, D. Watanabe, T. Shibauchi, Y. Matsuda, A.E. Boehmer, T. Wolf, C. Meingast, H. v. Loehneysen
    • Organizer
      APS March Meeting 2014
    • Place of Presentation
      Denver, Colorado (USA)
    • Related Report
      2013 Annual Research Report
  • [Presentation] The low temperature Fermi surface of IrTe2 probed by quantum oscillations2014

    • Author(s)
      Samuel Blake, Amalia Coldea, Matthew Watson, Arjun Narayanan, Alix McCollam, Shigeru Kasahara, Takuya Yamashita, Daiki Watanabe, Takasada Shibauchi, Yuji Matsuda, Robert Schoonmaker
    • Organizer
      APS March Meeting 2014
    • Place of Presentation
      Denver, Colorado (USA)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 鉄系超伝導における量子臨界現象とネマティック電子状態の研究2014

    • Author(s)
      笠原成
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学 (神奈川県)
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 75As-,31P-NMRによるBaFe2(As1-xPx)2単結晶の面内異方性の研究2014

    • Author(s)
      家哲也,Marc-Henri Julien,Hadrien Mayaffre,Mladen Horvatic,Claude Berthier,石田憲二,池田浩章,笠原成,芝内孝禎,松田祐司,寺嶋孝仁
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学 (神奈川県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] FeSeのレーザー角度分解光電子分光2014

    • Author(s)
      岡崎浩三,堀尾眞史,藤森淳,大田由一,山本遇哲,辛埴,渡部俊太郎,C.-T.Chen,笠原成,芝内孝禎,松田祐司,A. Boehmer,T. Wolf,P. Adelmann,C. Meingast,H. v. Loehneysen
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学 (神奈川県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] STM/STS測定で見たFeSe純良単結晶の超伝導ギャップ2014

    • Author(s)
      綿重達哉,花栗哲郎,幸坂祐生,岩谷克也,付英双,笠原成,渡辺大樹,水上雄太,三上拓也,川本雄太,蔵田聡,芝内孝禎,松田祐司, A.E. Boehmer,Thomas Wolf,C. Meingast,H. v. Loehneysen
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学 (神奈川県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] FeSeにおける準粒子干渉効果2014

    • Author(s)
      花栗哲郎,綿重達哉,幸坂祐生,岩谷克也,付英双,笠原成,渡辺大樹,水上雄太,三上拓也,川本雄太,蔵田聡,芝内孝禎,松田祐司, A.E. Boehmer,Thomas Wolf,C. Meingast,H. v. Loehneysen
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学 (神奈川県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] FeSe純良単結晶における輸送現象測定2014

    • Author(s)
      遠藤僚太,山下卓也,三上拓也,笠原成,芝内孝禎,松田祐司,Anna Boehmer,Thomas Wolf,Christoph Meingast,Hilbert v. Loehneysen
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学 (神奈川県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] BaFe2(As1-xPx)2のバンド分散,フェルミ面の組成依存性2013

    • Author(s)
      吉田鉄平, 他
    • Organizer
      日本物理学会 2013年秋季大会
    • Place of Presentation
      徳島大学 (徳島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] アルカリ金属系鉄ニクタイドの単結晶作製と輸送係数測定2013

    • Author(s)
      遠藤僚太,綿重達哉,笠原成,芝内孝禎,松田祐司
    • Organizer
      日本物理学会 2013年秋季大会
    • Place of Presentation
      徳島大学(徳島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 鉄砒素系超伝導体BaFe2(As1-xPx)2における熱電係数測定2013

    • Author(s)
      鶴原悠悟,利根川翔,山下卓也,Zengwei Zhu,Benoît Fauqué,Kamran Behnia,笠原成,松田祐司,芝内孝禎
    • Organizer
      日本物理学会 2013年秋季大会
    • Place of Presentation
      徳島大学 (徳島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 放射光X線測定によるURu2Si2の隠れた秩序相における斜方晶歪みの観測2013

    • Author(s)
      利根川翔,笠原成,鶴原悠悟,水上雄太,渡邊大樹,福田竜生,杉本邦久,安田伸広,芳賀芳範,松田達磨,山本悦嗣,大貫惇睦,池田浩章,松田祐司,芝内孝禎
    • Organizer
      日本物理学会 2013年秋季大会
    • Place of Presentation
      徳島大学 (徳島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] FeSe純良単結晶における磁場侵入長および熱伝導率測定2013

    • Author(s)
      笠原成,渡邊大樹,水上雄太,三上拓也,川本雄太,藏田聡信,芝内孝禎,松田祐司,Anna Boehmer,Thomas Wolf,Peter Adelmann,Christoph Meingast
    • Organizer
      日本物理学会 2013年秋季大会
    • Place of Presentation
      徳島大学 (徳島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 電子線照射により点欠陥を導入したBaFe2(As1-xPx)2の輸送現象測定2013

    • Author(s)
      三上拓也,水上雄太,川本雄太,藏田聡信,笠原成,松田祐司,芝内孝禎,M. Konczykowski,C. J. van der Beek,B. Boizot,R. Prozorov
    • Organizer
      日本物理学会 2013年秋季大会
    • Place of Presentation
      徳島大学 (徳島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 電子線照射したBaFe2(As1-xPx)2における点欠陥の磁気的性質2013

    • Author(s)
      水上雄太,川本雄太,蔵田聡信,三上拓也,橋本顕一郎,笠原成,M. Konczykowski,C. J. van der Beek,B. Boizot,R. Prozorov,Y. Wang,A. Kreisel,P. J. Hirschfeld,V. Mishra,松田祐司,芝内孝禎
    • Organizer
      日本物理学会 2013年秋季大会
    • Place of Presentation
      徳島大学 (徳島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 重い電子系ABAB’型人工超格子における空間反転対称性の超伝導への影響2013

    • Author(s)
      遠藤僚太,Swee K. Goh,下澤雅明,小林遼,西山卓也,渡邊大樹, 池田浩章,笠原成,柳瀬陽一,寺嶋孝仁,芝内孝禎,松田祐司
    • Organizer
      日本物理学会 2013年秋季大会
    • Place of Presentation
      徳島大学 (徳島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Nodal s-wave superconductivity in iron-based superconductors2013

    • Author(s)
      S. Kasahara
    • Organizer
      International Union of materials Research Society- International Conference in Asia IUMRS-ICA 2013
    • Place of Presentation
      Bangalore, India
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Nematic transition and hidden quantum critical point in BaFe2(As1-xPx)22013

    • Author(s)
      S. Kasanara, K. Hashimoto, H.J. Shi, H. Shishido, Y. Tsuruhara, S. Tonegawa, Y. Mizukami, K. Sugimoto, T. Fukuda, A.H. Nevidomskyy, M. Tanatar, R. Prozorov, A. Carrington, T. Terashima, T. Shibauchi, and Y. Matsuda
    • Organizer
      Japan-China-Korea A3 Foresight Program of "Joint Research on Novel Properties of Complex Oxides" 2013 Tokyo Meeting
    • Place of Presentation
      Koshiba Hall, University of Tokyo、(東京都)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Nematic transition and hidden quantum critical point in iron-pnictide superconductors2013

    • Author(s)
      S. Kasahara
    • Organizer
      March Meeting 2013 - American Physical Society
    • Place of Presentation
      Baltimore Convention Center, Maryland, USA(招待講演)
    • Related Report
      2012 Annual Research Report
  • [Presentation] BaFe2(As, P)2における擬ギャップ22013

    • Author(s)
      園部竜也, 下志万貴博, 出田真一郎, 吉田鉄平, 藤森淳, 組頭広志, 小野寛太, 中島陽佑, 安斎太陽, 井野明洋, 有田将司, 生天目博文, 谷口雅樹, 中島正道, 内田慎一, 富岡泰秀, 伊藤利充, 木方邦宏, 李哲虎, 伊豫彰, 永崎洋, 笠原成, 寺嶋孝仁, 芝内孝禎, 松田祐司, 石坂香子
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 熱伝導率測定からみたオーバードープ領域の(Ba1-xKx)Fe2As2における超伝導ギャップ構造2013

    • Author(s)
      渡邊大樹, 山下卓也, 笠原成, 太田卓見, 山下穣, 齊藤拓, 深潭英人, 小堀洋, 石田茂之, 木方邦宏, 伊豫彰, 李哲虎, 永崎洋, Anton B, Vorontsov, 芝内孝禎, 松田祐司
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 磁場侵入長測定からみたオーバードープ領域の(Ba1-xKx)Fe2As2における超伝導ギャップ構造2013

    • Author(s)
      川本雄太, 水上雄太, 蔵田聡信, 笠原成, 齊藤拓, 深潭英人, 小堀洋, 石田茂之, 木方邦宏, 伊豫彰, 李哲虎, 永崎洋, 芝内孝禎, 松田祐司
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 磁場侵入長測定からみたオーバードープ領域の(Ba1-xKx)Fe2 As2における超伝導ギャップ構造2013

    • Author(s)
      川本雄太, 水上雄太, 蔵田聡信, 笠原成, 齊藤拓, 深潭英人, 小堀洋, 石田茂之, 木方邦宏, 伊豫彰, 李哲虎, 永崎洋, 芝内孝禎, 松田祐司
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 電子線照射により不純物散乱を制御したBaFe2(As1-xPx)2における超伝導ギャップ構造の変化2013

    • Author(s)
      水上雄太, 川本雄太, 橋本顕一郎, 笠原成, M. Konczykowski, C. J. van der Beek, B. Boizot, R.Prozorov, Y. Wang, A. Kreisel, P.J. Hirschfeld, V. Mishira, 芝内孝禎,松田祐司
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 122系鉄砒素系超伝導体における熱電係数の測定2013

    • Author(s)
      利根川翔, 山下卓也, 鶴原悠悟, Zengwei Zhu, Benoit Fauque, Kamran Behnia, 笠原成, 芝内孝禎, 松田祐司
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] PLD法によるBaFe2As2超薄膜の作製2013

    • Author(s)
      綿重達哉,笠原成,下澤雅明,石井航,芝内孝禎,寺嶋孝仁,松田祐司
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] NMRによるBa(Fel-yMy)2(As1-xPx)2 (M = Zn, Mn)の不純物効果の研究2013

    • Author(s)
      川島裕貴, 下田愛子, 家哲也, 北川俊作, 石田憲二, 笠原成, 芝内孝禎, 松田祐司, 寺嶋孝仁
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] BaFe2(As1-xPx)2単結晶を用いたNMRによる面内異方性の研究2013

    • Author(s)
      家哲也, 中井祐介, 北川俊作, 石田憲二, 笠原成, 芝内孝禎, 松田祐司, 寺嶋孝仁, Hadrien Mayaffre, Marc-Henri Julien
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(広島県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 鉄系超伝導体における電子ネマティック秩序2012

    • Author(s)
      笠原成
    • Organizer
      新学術領域研究「重い電子系の形成と秩序化」ワークショップ~重い電子系における格子・フォノンの役割~
    • Place of Presentation
      岩手大学北桐ホール(岩手県)(招待講演)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 鉄系超伝導体における電子ネマティック秩序相の形成2012

    • Author(s)
      笠原成
    • Organizer
      京都大学基礎物理学研究所研究会「鉄系高温超伝導の物理~スピン・軌道・格子~」
    • Place of Presentation
      京都大学基礎物理学研究所(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Contrasts in the normal and superconducting state properties in LiFeP and LiFeAs superconductors2012

    • Author(s)
      S. Kasahara, K. Hashimoto, H. Ikeda, T. Terashima, Y. Matsuda, and T. Shibauchi
    • Organizer
      The 10th International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors (M2S-HTSC)
    • Place of Presentation
      Omni Shoreham Hotel Washington DC, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] Electronic nematic ordering above the structural transition and superconducting dome ofBaFe2(As1-xPx)2 iron-based superconductor2012

    • Author(s)
      S. Kasahara
    • Organizer
      The 9th International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials (New3SC-9)
    • Place of Presentation
      GRAND HOTEL VILLA TUSCOLANA, Frascati - Rome, Italy(招待講演)
    • Related Report
      2012 Annual Research Report
  • [Presentation] URu2Si2の隠れた秩序相におけるネマティック電子状態の研究2012

    • Author(s)
      利根川翔,鶴原悠悟,笠原成,岡崎竜二,芳賀芳範,松田達磨,山本悦嗣,大貫惇睦,池田浩章,芝内孝禎,松田祐司
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 鉄系超伝導体Ba(Fe1-xCox)2As2におけるネマティック秩序相の形成2012

    • Author(s)
      鶴原悠悟,笠原成,利根川翔,水上雄太,渡辺大樹,史宏杰,福田竜生,杉本邦久, A.H.Nevidomskyy,寺嶋孝仁,芝内孝禎,松田祐司
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] (Bal-xKx)Fe2As2のホールドープエンド近傍における超伝導ギャップ構造(熱伝導率測定)2012

    • Author(s)
      山下卓也,渡邊大樹,笠原成,山下穣,芝内孝禎,松田祐司,齊藤拓,深潭英人,小堀洋,木方邦,宏,伊豫彰,李哲虎,永崎洋
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] (Ba1-xKx)Fe2As2のホールドープエンド近傍における超伝導ギャップ構造(磁場侵入長測定)2012

    • Author(s)
      川本雄太,水上雄太, S.K.Goh, 笠原成,芝内孝禎,松田祐司,齊藤拓,深潭英人,小堀洋,木方邦宏,伊豫彰,李哲虎,永崎洋
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] BaFe2(As1-xPx)2(x = 0.38)の超伝導ギャップの異方性2012

    • Author(s)
      出田真一郎,吉田鉄平,鈴木博人,藤森淳,下志万貴博,石坂香子, Walid Malaeb, 辛埴,中島陽祐,安斎太陽,井野明洋,有田将司,生天目博文,谷口樹,組頭広志,小野寛太,笠原成,寺嶋孝仁,芝内孝禎,松田祐司,中島正道,内田慎一,富岡泰秀,伊藤利充,木方邦宏,李哲虎,伊豫彰,永崎洋,池田浩章,有田亮太郎
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] BaFe2(As1-xPx)2のバンド軌道対称性2012

    • Author(s)
      吉田鉄平,出田真一郎,西一郎,鈴木博人,藤森淳,下志万貴博,品田慶,石坂香子, Walid Malaeb,辛埴,中島陽佑,安斎太陽,井野明洋,有田将司,生天目博文,谷口雅樹,組頭広志,小野寛太,笠原成,寺嶋孝仁,芝内孝禎,松田祐司,中島正道,内田慎一,富岡泰秀,伊藤利充,木方邦宏,李哲虎,伊豫彰,永崎洋,池田浩章,有田亮太郎, S.K.Mo, Z.X. Sheii, Z, Hussain
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] BaFe2(As,P)2における擬ギャップ2012

    • Author(s)
      園部竜也,辱志万貴博,品田慶,出田真一郎, Walid Malaeb, 石田行章,辛埴,中島正道,富岡泰秀,木方邦宏,李哲虎,伊豫彰,永崎洋,伊藤利充,内田慎一,吉田鉄平,藤森淳,笠原成,寺嶋孝仁,芝内孝禎,松田祐司,石坂香子
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] LaFeAsOl-yの最適ドーブ試料における磁場侵入長測定から見た超伝導ギャップ構造2012

    • Author(s)
      水上雄太,川本雄太, S.K. Goh, 笠原成,石角元志,石田茂之,鬼頭聖,伊豫彰,永崎洋,社本真一,寺嶋孝仁,芝内孝禎,松田祐司
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 鉄系超伝導体BaFe2(As1-xPx)2における不純物効果2012

    • Author(s)
      川島裕貴,下田愛子,家哲也,北川俊作,石田憲二,笠原成,芝内孝禎,松田祐司,寺嶋孝仁
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] BaFe2( As1-xPx)2における磁性-超伝導共存/競合相の磁気応答2012

    • Author(s)
      冢哲也,中井祐介,北川俊作,石田憲二,笠原成,芝内孝禎,松田祐司,寺嶋孝仁
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Remarks] 京都大学 固体電子物性研究室ホームページ

    • URL

      http://kotai2.scphys.kyoto-u.ac.jp/index.php

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2012-04-24   Modified: 2020-05-15  

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