Microwave studies of heavy-fermion superconductors

2011 Fiscal Year Final Research Report

• Project/Area Number: 21340099
• 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: SHIBAUCHI Takasada 京都大学, 大学院・理学研究科, 准教授 (00251356)
• Project Period (FY): 2009 – 2011
• Keywords: サイクロトロン共鳴 / 有効質量 / フェルミ面 / 超伝導ギャップ / 磁場侵入長

Research Abstract

We studied low energy electronic properties of strongly correlated electron systems by using microwave. In uranium heavy-fermion compound, we observed cyclotron resonance for the first time, from which we determined the electronic mass structure of the main Fermi surface sheets in the so-called hidden-order phase. We also measured the magnetic penetration depth in iron-based superconductors and determined the superconducting gap structure. We also found the quantum critical point inside the superconducting phase.

Research Products

• [Journal Article] Contrasts in Electron Correlations and Inelastic Scattering between LiFeP and LiFeAs Revealed by Charge Transport (2012)
  • Author(s): S. Kasahara, K. Hashimoto, H. Ikeda, T. Terashima, Y. Matsuda, and T. Shibauchi
  • Journal Title: Phys. Rev Volume: B85 Pages: 060503
  • DOI: DOI:10.1103/PhysRevB.85.060503
• [Journal Article] Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe2(As1-xPx) 2 (2012)
  • Author(s): T. Iye, Y. Nakai, S. Kitagawa, K. Ishida, S. Kasahara, T. Shibauchi, Y. Matsuda, and T. Terashima
  • Journal Title: J. Phys. Soc. Jpn Volume: 81 Pages: 033701
  • DOI: DOI:10.1143/JPSJ.81.033701
• [Journal Article] Nodal versus Nodeless Behaviors of the Order Parameters of LiFeP and LiFeAs Superconductors from Magnetic Penetration-Depth Measurements (2012)
  • Author(s): K. Hashimoto, S. Kasahara, R. Katsumata, Y. Mizukami, M. Yamashita, H. Ikeda, T. Terashima, A. Carrington, Y. Matsuda, and T. Shibauchi
  • Journal Title: Phys. Rev. Lett Volume: 108 Pages: 047003
  • DOI: DOI:10.1103/PhysRevLett.108.047003
• [Journal Article] de Haas-van Alphen Study of the Fermi Surfaces of Superconducting LiFeP and LiFeAs (2012)
  • Author(s): C. Putzke, A. I. Coldea, I. Guillamon, D. Vignolles, A. McCollam, D. LeBoeuf, M. D. Watson, I. I. Mazin, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, and A. Carrington
  • Journal Title: Phys. Rev. Lett Volume: 108 Pages: 047002
  • DOI: DOI:10.1103/PhysRevLett.108.047002
• [Journal Article] Volovik Effect in a Highly Anisotropic Multiband Superconductor : Experiment and Theory (2011)
  • Author(s): Y. Wang, J. S. Kim, G. R. Stewart. P. J. Hirschfeld, S. Graser, S. Kasahara, T. Terashima, Y. Matsuda, T. Shibauchi, and I. Vekhter
  • Journal Title: Phys. Rev Volume: B84 Pages: 184524
  • DOI: DOI:10.1103/PhysRevB.84.184524
• [Journal Article] Extremely Strong-Coupling Superconductivity in Artificial Two-Dimensional Kondo Lattices (2011)
  • Author(s): Y. Mizukami, H. Shishido, T. Shibauchi, M. Shimozawa, T. Yasumoto, M. Yamashita, H. Ikeda, T. Terashima, H. Kontani, and Y. Matsuda
  • Journal Title: Nature Physics Volume: 7 Pages: 849-853
  • DOI: DOI:10.1038/nphys2112
• [Journal Article] Nodal Gap Structure of Superconducting BaFe2(As1-xPx) 2 from Angle-Resolved Thermal Conductivity in a Magnetic Field (2011)
  • Author(s): M. Yamashita, Y. Senshu, T. Shibauchi, S. Kasaharsa, K. Hashimoto, D. Watanabe, H. Ikeda, T. Terashima, I. Vekhter, A. B. Vorontsov, and Y. Matsuda
  • Journal Title: Phys. Rev Volume: B84 Pages: 060507
  • DOI: DOI:10.1103/PhysRevB.84.060507
• [Journal Article] Nesting of Electron and Hole Fermi Surfaces in No superconducting BaFe2P2 (2011)
  • Author(s): B. J. Arnold, S. Kasahara, A. I. Coldea, T. Terashima, Y. Matsuda, T. Shibauchi, and A. Carrington
  • Journal Title: Phys. Rev Volume: B83 Pages: 220504
  • DOI: DOI:10.1103/PhysRevB.83.220504
• [Journal Article] Specific Heat Discontinuity,ΔC, at Tc in BaFe2(As0. 7P0. 3) 2-Consistent with Unconventional Superconductivity (2011)
  • Author(s): J. S. Kim, G. R. Stewart, S. Kasahara, T. Shibauchi, T. Terashima, and Y. Matsuda
  • Journal Title: J. Phys.: Condens. Matter Volume: 23 Pages: 222201
  • DOI: DOI:10.1088/0953-8984/23/22/222201
• [Journal Article] Orbital-Independent Superconducting Gaps in Iron-Pnictides (2011)
  • Author(s): T. Shimojima, F. Sakaguchi, K. Ishizaka, Y. Ishida, T. Kiss, M. Okawa, T. Togashi, C.-T. Chen, S. Watanabe, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, K. Ohgushi, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, A. Chainani, and S. Shin
  • Journal Title: Science Volume: 332 Pages: 564-567
  • DOI: DOI:10.1126/science.1202150
• [Journal Article] Evolution of Paramagnetic Quasiparticle Excitations Emerged in the High-Field Superconducting Phase of CeCoIn5 (2011)
  • Author(s): K. Kumagai, H. Shishido, T. Shibauchi, and Y. Matsuda
  • Journal Title: Phys. Rev. Lett Volume: 106 Pages: 137004
  • DOI: DOI:10.1103/PhysRevLett.106.137004
• [Journal Article] Two-Dimensional and Three-Dimensional Fermi Surfaces of Superconducting BaFe2(As1-xPx) 2 and Their Nesting Properties Revealed by Angle-Resolved Photoemission Spectroscopy (2011)
  • Author(s): T. Yoshida, I. Nishi, S. Ideta, A. Fujimori, M. Kubota, K. Ono, S. Kasahara, T. Shibauchi, T. Terashima, Y. Matsuda, H. Ikeda, and R. Arita
  • Journal Title: Phys. Rev. Lett Volume: 106 Pages: 117001
  • DOI: DOI:10.1103/PhysRevLett.106.117001
• [Journal Article] Abrupt Recovery of Fermi-Liquid Transport Following the Collapse of the c Axis in CaFe2(As1-xPx) 2 Single Crystals (2011)
  • Author(s): S. Kasahara, T. Shibauchi, K. Hashimoto, Y. Nakai, H. Ikeda, T. Terashima, and Y. Matsuda
  • Journal Title: Phys. Rev Volume: B83 Pages: 060505
  • DOI: DOI:10.1103/PhysRevB.83.060505
• [Journal Article] Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2 (2011)
  • Author(s): R. Okazaki, T. Shibauchi, H. J. Shi, Y. Haga, T. D. Matsuda, E. Yamamoto, Y. Onuki, H. Ikeda, and Y. Matsuda
  • Journal Title: Science Volume: 331 Pages: 439-442
  • DOI: DOI:10.1126/science.1197358
• [Journal Article] Quasiparticle Scattering Induced by Charge Doping of Iron-Pnictide Superconductors Probed by Collective Vortex Pinning (2010)
  • Author(s): C. J. van der Beek, M. Konczykowski, S. Kasahara, T. Terashima, R. Okazaki, T. Shibauchi, and Y. Matsuda
  • Journal Title: Phys. Rev. Lett Volume: 105 Pages: 267002
  • DOI: DOI:10.1103/PhysRevLett.105.267002
• [Journal Article] Chemical Pressure and Physical Pressure in BaFe2(As1-xPx) 2 (2010)
  • Author(s): L. E. Klintberg, S. K. Goh, S. Kasahara, Y. Nakai, K. Ishida, M. Sutherland, T. Shibauchi, Y. Matsuda, and T. Terashima
  • Journal Title: J. Phys. Soc. Jpn Volume: 79 Pages: 123706
  • DOI: DOI:10.1143/JPSJ.79.123706
• [Journal Article] Interlayer Magneto transport in the Overdoped Cuprate Tl2Ba2CuO6+ x : Quantum Critical Point and Its Downslide in an Applied Magnetic Field (2010)
  • Author(s): L. Krusin-Elbaum, T. Shibauchi, Y. Kasahara, R. Okazaki, Y. Matsuda, R. D. McDonald, C. H. Mielke, and M. Hasegawa
  • Journal Title: Phys. Rev Volume: B82 Pages: 144530
  • DOI: DOI:10.1103/PhysRevB.82.144530
• [Journal Article] Unconventional Superconductivity and Ant ferromagnetic Quantum Critical Behavior in the Isovalent-Doped BaFe2(As1-xPx) 2 (2010)
  • Author(s): Y. Nakai, T. Iye, S. Kitagawa, K. Ishida, H. Ikeda, S. Kasahara, H. Shishido, T. Shibauchi, Y. Matsuda, and T. Terashima
  • Journal Title: Phys. Rev. Lett Volume: 105 Pages: 107003
  • DOI: DOI:10.1103/PhysRevLett.105.107003
• [Journal Article] Anisotropic Superconducting Properties of Optimally Doped BaFe2(As0. 65P0. 35) 2 under Pressure (2010)
  • Author(s): S. K. Goh, Y. Nakai, K. Ishida, L. E. Klintberg, Y. Ihara, S. Kasahara, T. Shibauchi, Y. Matsuda, and T. Terashima
  • Journal Title: Phys. Rev Volume: B82 Pages: 094502
  • DOI: DOI:10.1103/PhysRevB.82.094502
• [Journal Article] Anomalous Temperature Dependence of Lower Critical Field in Ultraclean URu2Si2 (2010)
  • Author(s): R. Okazaki, M. Shimozawa, H, Shishido, M. Konczykowski, Y. Haga, T. D. Matsuda, Y. Onuki, Y. Yanase, T. Shibauchi, and Y. Matsuda
  • Journal Title: J. Phys. Soc. Jpn Volume: 79 Pages: 084705
  • DOI: DOI:10.1143/JPSJ.79.084705
• [Journal Article] Evidence for Superconducting Gap Nodes in the Zone-Centered Hole Bands of KFe2As2 from Magnetic Penetration-Depth Measurements (2010)
  • Author(s): K. Hashimoto, A. Serafin, S. Tonegawa, R. Katsumata, R. Okazaki, T. Saito, H. Fukazawa, Y. Kohori, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, H. Ikeda, Y. Matsuda, A. Carrington, and T. Shibauchi
  • Journal Title: Phys. Rev Volume: B82 Pages: 014526
  • DOI: DOI:10.1103/PhysRevB.82.014526
• [Journal Article] Highly Mobile Gapless Excitations in a Two-Dimensional Canditate Quantum Spin Liquid (2010)
  • Author(s): M. Yamashita, N. Nakata, Y. Senshu, M. Nagata, H. M. Yamamoto, R. Kato, T. Shibauchi, and Y. Matsuda
  • Journal Title: Science Volume: 328 Pages: 1246-1248
  • DOI: DOI:10.1126/science.1188200
• [Journal Article] Specific Heat vs Field in the 30 K Superconductor BaFe2(As0. 7P0. 3) 2 (2010)
  • Author(s): J. S. Kim, P. J. Hirschfeld, G. R. Stewart, S. Kasahara, T. Shibauchi, T. Terashima, and Y. Matsuda
  • Journal Title: Phys. Rev Volume: B81 Pages: 214507
  • DOI: DOI:10.1103/PhysRevB.81.214507
• [Journal Article] Line Nodes in the Energy Gap of Superconducting BaFe2(As1-xPx) 2 Single Crystals as Seen via Penetration Depth and Thermal Conductivity (2010)
  • Author(s): K. Hashimoto, M. Yamashita, S. Kasahara, Y. Senshu, N. Nakata, S. Tonegawa, K. Ikada, A. Serafin, A. Carrington, T. Terashima, H. Ikeda, T. Shibauchi, and Y. Matsuda
  • Journal Title: Phys. Rev Volume: B81 Pages: 220501
  • DOI: DOI:10.1103/PhysRevB.81.220501
• [Journal Article] Evolution from Non-Fermi-to Fermi-Liquid Transport via Isovalent Doping in BaFe2(As1-xPx) 2 Superconductors (2010)
  • Author(s): S. Kasahara, T. Shibauchi, K. Hashimoto, K. Ikada, S. Tonegawa, H. Ikeda, H. Takeya, K. Hirata, T. Terashima, and Y. Matsuda
  • Journal Title: Phys. Rev Volume: B81 Pages: 184519
  • DOI: DOI:10.1103/PhysRevB.81.184519
• [Journal Article] Flux Pinning in PrFeAsO0. 9 and NdFeAsO0. 9F0. 1 Superconducting Crystals (2010)
  • Author(s): C. J. van der Beek, G. Rizza, M. Konczykowski, P. Fertey, I. Monnet, T. Klein, R. Okazaki, M. Ishikado, H. Kito, A. Iyo, H. Eisaki, S. Shamoto, M. E. Tillman, S. L. Bud' ko, P. C. Canfield, T. Shibauchi, and Y. Matsuda
  • Journal Title: Phys. Rev Volume: B81 Pages: 174517
  • DOI: DOI:10.1103/PhysRevB.81.174517
• [Journal Article] Tuning the Dimensionality ofthe Heavy Fermion Compound CeIn3 (2010)
  • Author(s): H. Shishido, T. Shibauchi, K. Yasu, T. Kato, H. Kontani, T. Terashima, and Y. Matsuda
  • Journal Title: Science Volume: 327 Pages: 980-983
  • DOI: DOI:10.1126/science.1183376
• [Journal Article] Evolution of the Fermi Surface of BaFe2(As1-xPx) 2 on Entering the Superconducting Dome (2010)
  • Author(s): H. Shishido, A. F. Bangura, A. I. Coldea, S. Tonegawa, K. Hashimoto, S. Kasahara, P. M. C. Rourke, H. Ikeda, T. Terashima, R. Settai, Y. Onuki, D. Vignolles, C. Proust, B. Vignolle, A. McCollam, Y. Matsuda, T. Shibauchi, and A. Carrington
  • Journal Title: Phys. Rev. Lett Volume: 104 Pages: 057008
  • DOI: DOI:10.1103/PhysRevLett.104.057008
• [Journal Article] 31P and 75As NMR Evidence for a Residual Density of States at Zero Energy in Superconducting BaFe2(As0. 67P0. 33) 2 (2010)
  • Author(s): Y. Nakai, T. Iye, S. Kitagawa, K. Ishida, S. Kasahara, T. Shibauchi, Y. Matsuda, and T. Terashima
  • Journal Title: Phys. Rev Volume: B81 Pages: 020503
  • DOI: DOI:10.1103/PhysRevB.81.020503
• [Journal Article] Thermal Conductivity Measurements of the Energy-Gap Anisotropy of Superconducting LaFePO at Low Temperatures (2009)
  • Author(s): M. Yamashita, N. Nakata, Y. Senshu, S. Tonegawa, K. Ikada, K. Hashimoto, H. Sugawara, T. Shibauchi, and Y. Matsuda
  • Journal Title: Phys. Rev Volume: B80 Pages: 220509
  • DOI: DOI:10.1103/PhysRevB.80.220509
• [Journal Article] Superconducting Gap Structure of Heavy-Fermion Compound URu2Si2 Determined by Angle Resolved Thermal Conductivity (2009)
  • Author(s): Y. Kasahara, H. Shishido, T. Shibauchi, Y. Haga, T. D. Matsuda, Y. Onuki, and Y. Matsuda
  • Journal Title: New J. Phys Volume: 11 Pages: 055061
  • DOI: DOI:10.1088/1367-2630/11/5/055061
• [Journal Article] Microwave Surface-Impedance Measurements of the Magnetic Penetration Depth in Single Crystal Ba1-xKxFe2As2 Superconductors : Evidence for a Disorder-Dependent Super fluid Density (2009)
  • Author(s): K. Hashimoto, T. Shibauchi, S. Kasahara, K. Ikada, S. Tonegawa, T. Kato, R. Okazaki, C. J. van der Beek, M. Konczykowski, H. Takeya, K. Hirata, T. Terashima, and Y. Matsuda
  • Journal Title: Phys. Rev. Lett Volume: 102 Pages: 207001
  • DOI: DOI:10.1103/PhysRevLett.102.207001
• [Journal Article] Possible Phase Transition Deep Inside the Hidden Order Phase of Ultra clean URu2Si2 (2009)
  • Author(s): H. Shishido, K. Hashimoto, T. Shibauchi, T. Sasaki, H. Oizumi, N. Kobayashi, T. Takamasu, K. Takenaka, Y. Imanaka, T. D. Matsuda, Y. Haga, Y. Onuki, and Y. Matsuda
  • Journal Title: Phys. Rev. Lett Volume: 102 Pages: 156403
  • DOI: DOI:10.1103/PhysRevLett.102.156403
• [Journal Article] A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in the Iron-Based Superconductor BaFe2(As1-xPx) 2
  • Author(s): K. Hashimoto, K. Cho, T. Shibauchi, S. Kasahara, Y. Mizukami, R. Katsumata, Y. Tsuruhara, T. Terashima, H. Ikeda, M. A. Tanatar, H. Kitano, P. Walmsley, A. Carrington, R. Prozorov, and Y. Matsuda
  • Journal Title: Science Volume: (to be published)
• [Journal Article] Nematic and Meta-Nematic Transitions in the Iron Pnictides
  • Author(s): S. Kasahara, H. J. Shi, K. Hashimoto, S. Tonegawa, Y. Mizukami, T. Shibauchi, K. Sugimoto, T. Fukuda, T. Terashima, A. H. Nevidomskyy, and Y. Matsuda
  • Journal Title: Nature Volume: (to be published)
• [Presentation] Symmetry Breaking in the Hidden Order Phase of URu2Si2 (2012)
  • Author(s): T. Shibauchi
  • Organizer: UK-Japan workshop
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20120116-17
• [Presentation] URu2Si2の隠れた秩序-フェルミ面における回転対称性の破れ,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～超伝導、多極子の物理における最近の話題 (2012)
  • Author(s): 芝内孝禎
  • Place of Presentation: 東京大学物性研究所
  • Year and Date: 20120110-11
• [Presentation] マクロ測定と超伝導～発展「トルク測定とネマティック状態 (2011)
  • Author(s): 芝内孝禎
  • Organizer: 第2回重い電子系若手秋の学校
  • Place of Presentation: 高野山大学
  • Year and Date: 20110926-30
• [Presentation] Quantum Criticality and Superconducting Gap Structure in BaFe2(As1-xPx) 2 (2011)
  • Author(s): T. Shibauchi
  • Organizer: 26th International Conference on Low Temperature Physics(LT26)
  • Place of Presentation: Beijing, China
  • Year and Date: 20110811-17
• [Presentation] Quantum Criticality and Superconducting Gap Structure in Iron-Pnictide Superconductors (2011)
  • Author(s): T. Shibauchi
  • Organizer: The 13th International Workshop on Vortex Matter in Superconductors
  • Place of Presentation: Chicago, IL, USA
  • Year and Date: 20110801-05
• [Presentation] BaFe2(As, P) 2における量子臨界現象 (2011)
  • Author(s): 芝内孝禎
  • Organizer: 基研研究会鉄系高温超伝導の物理
  • Place of Presentation: 京都大学基礎物理学研究所
  • Year and Date: 20110616-17
• [Presentation] Nodal s-wave superconductivity in BaFe2(As1-xPx) 2 (2011)
  • Author(s): T. Shibauchi
  • Organizer: Eighth International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials(New3SC-8)
  • Place of Presentation: Chongqing, China
  • Year and Date: 20110608-11
• [Presentation] Nodal s-wave superconductivity in BaFe2(As1-xPx) 2 (2011)
  • Author(s): T. Shibauchi
  • Organizer: Superconductivity : 100 years young, Natal
  • Place of Presentation: Brazil, May
  • Year and Date: 20110516-27
• [Presentation] Nodal s-wave superconductivity in BaFe2(As1-xPx) 2 (2011)
  • Author(s): T. Shibauchi
  • Organizer: The workshop on Unconventional Superconductivity
  • Place of Presentation: Minneapolis, Minnesota, USA
  • Year and Date: 20110422-24
• [Presentation] Non-Fermi liquid transport and non-universal gap structure in iron-based superconductors (2011)
  • Author(s): T. Shibauchi
  • Organizer: 2011 Villa Conference on Iron Pnictide Superconductors(VCIPS 2011)
  • Place of Presentation: Las Vegas, Nevada, USA
  • Year and Date: 20110421-22
• [Presentation] Iron-based superconductors : Spin vs orbital fluctuations (2010)
  • Author(s): T. Shibauchi
  • Organizer: Kyoto Autum School 2010-The 7th workshop of the A3 foresight program "Joint Research on Novel Properties of Complex Oxides"
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20101207-11
• [Presentation] Non-Fermi liquid transport properties and quantum criticality in BaFe2(As1-xPx) 2 (2010)
  • Author(s): T. Shibauchi
  • Organizer: Physical Phenomena at High Magnetic Fields(PPHMF VII)
  • Place of Presentation: Tallahassee, Florida, USA
  • Year and Date: 20101204-08
• [Presentation] Broken Rotational Symmetry in the Hidden Order Phase of URu2Si2 (2010)
  • Author(s): T. Shibauchi
  • Organizer: Plutonium Futures-The Science 2010
  • Place of Presentation: Keystone, Colorado, USA
  • Year and Date: 20100919-23
• [Presentation] Non-Fermi-liquid transport properties and non-universal gap structure in iron-based superconductors (2010)
  • Author(s): T. Shibauchi
  • Organizer: International Workshop on Recent Progress on Spectroscopies and High-Tc Superconductors
  • Place of Presentation: Tohoku University, Sendai, Japan
  • Year and Date: 20100809-11
• [Presentation] Non-universal Gap Structure in Fe-pnictide High-Temperature Superconductors (2010)
  • Author(s): T. Shibauchi
  • Organizer: Superconductivity and Magnetism(ICSM2010)
  • Place of Presentation: Antalya, Turkey
  • Year and Date: 20100400
• [Presentation] 鉄系超伝導体におけるノンユニバーサルな超伝導ギャップ構造 (2010)
  • Author(s): 芝内孝禎
  • Organizer: 日本物理学会第65回年次大会日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学
  • Year and Date: 20100320-23
• [Presentation] Non-Fermi Liquid Transport Properties in Fe-Pnictide and Heavy Fermion Materials (2010)
  • Author(s): T. Shibauchi
  • Organizer: UK-Japan meeting
  • Place of Presentation: Bristol, UK
  • Year and Date: 20100200
• [Presentation] Non-universal Gap Structure in Fe-pnictide High-Temperature Superconductors (2009)
  • Author(s): T. Shibauchi
  • Organizer: 5th International Workshop on Nanomagnetism and Superconductivity(coma-ruga2009)
  • Place of Presentation: Coma-ruga, Spain
  • Year and Date: 20090700
• [Remarks]
  • URL: http://kotai2.scphys.kyoto-u.ac.jp/index.php