Penetration depth measurements of pressure induced superconductors

• Project/Area Number: 23654118
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics II
• Research Institution: Kyoto University
• Principal Investigator: MATSUDA Yuji 京都大学, 大学院・理学研究科, 教授 (50199816)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 強相関系 / 異方的超伝導 / 磁場侵入長 / 圧力誘起超伝導 / 鉄系超伝導体 / 超伝導ギャップ / 重い電子 / 圧力 / 熱伝導 / 人工超格子

Research Abstract

We have measured the penetration depth of iron pnictides high temperature superconductors by using tunnel diode oscillator and microwave surface impedance apparatus. We studied how the superconducting gap evolves with iron substitution and pressure in iron based superconductors.

Research Products

• [Journal Article] Searching for Zeros (2013)
  • Author(s): Y. Matsuda
  • Journal Title: JPSJ Online-News and Comments [January 22, 2013] Volume: 82 Pages: 24707-24707
  • Peer Reviewed
• [Journal Article] Anomalous superfluid density in quantum critical superconductors (2013)
  • Author(s): K. Hashimoto, Y. Mizukami, et al.
  • Journal Title: Proceedings of the National Academy of Sciences Volume: 110 Issue: 9 Pages: 3293-3297
  • DOI: 10.1073/pnas.1221976110
  • Peer Reviewed
• [Journal Article] Interplane resistivity of isovalent doped BaFe2(As1－xPx)2 (2013)
  • Author(s): M. A. Tanatar
  • Journal Title: Phys. Rev. B Volume: 87 Issue: 10 Pages: 104506-104506
  • DOI: 10.1103/physrevb.87.104506
  • Peer Reviewed
• [Journal Article] Disorder, critical currents, and vortex pinning energies in isovalently substituted BaFe2(As1－xPx)2 (2013)
  • Author(s): S. Demirdis
  • Journal Title: Phys. Rev. B Volume: 87 Issue: 9 Pages: 94506-94506
  • DOI: 10.1103/physrevb.87.094506
  • Peer Reviewed
• [Journal Article] Terahertz Conductivity of the Heavy-Fermion State in CeCoIn5 (2013)
  • Author(s): M. Scheffler
  • Journal Title: J. Phys. Soc. Jpn. Volume: 82 Issue: 4 Pages: 43712-43712
  • DOI: 10.7566/jpsj.82.043712
  • Peer Reviewed
• [Journal Article] A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe_2(As_<1-x>P_x)_2 (2012)
  • 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
  • Peer Reviewed
• [Journal Article] Electronic nematicity above the structural and superconducting transition in BaFe2 (As1-xPx)2 (2012)
  • Author(s): S. Kasahara, et al.
  • Journal Title: Nature Volume: 486 Issue: 7403 Pages: 382-385
  • DOI: 10.1038/nature11178
  • Peer Reviewed
• [Journal Article] Emergent Rank-5 `Nematic' Order in Uru_2Si_2 (2012)
  • Author(s): H. Ikeda, M.-T. Suzuki, R. Arita, T. Takimoto, T. Shibauchi, and Y. Matsuda
  • Journal Title: Nature Physics Volume: 8 Issue: 7 Pages: 528-533
  • DOI: 10.1038/nphys2330
  • Peer Reviewed
• [Journal Article] de Haas-van Alphen Study of the Fermi Surfaces of Superconducting LiFeP and LiFeAs (2012)
  • Author(s): C. Putzke
  • Journal Title: Phys. Rev. Lett. Volume: 108 Issue: 4 Pages: 47002-47002
  • DOI: 10.1103/physrevlett.108.047002
  • Peer Reviewed
• [Journal Article] Nodal versus Nodeless Behaviors of the Order Parameters of LiFeP and LiFeAs Superconductors from Magnetic Penetrat ion-Depth Measurements (2012)
  • Author(s): K.Hashimoto, et al
  • Journal Title: Physical Review Letters Volume: 108 Issue: 4 Pages: 47003-47007
  • DOI: 10.1103/physrevlett.108.047003
  • Peer Reviewed
• [Journal Article] Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe_2 (As_<1-x>P_x)_2 (2012)
  • Author(s): T.Iye, et al.
  • Journal Title: Journal of the Physical Society of Japan Volume: 81 Issue: 3 Pages: 33701-33701
  • DOI: 10.1143/jpsj.81.033701
  • Peer Reviewed
• [Journal Article] Contrasts in electron correlations and inelastic scattering between LiFeP and LiFeAs revealed by charge transport (2012)
  • Author(s): S.Kasahara, et al
  • Journal Title: Physical Review B Volume: 85 Issue: 6 Pages: 60503-6057
  • DOI: 10.1103/physrevb.85.060503
  • Peer Reviewed
• [Journal Article] Gradual suppression of antiferromagnetism in BaFe_2(As_<1-x>P_x)_2 : Zero-temperature evidence for a quantum critical point (2012)
  • Author(s): T. Iye, et al.,
  • Journal Title: Physical Review B Volume: 85 Issue: 18 Pages: 184505-184505
  • DOI: 10.1103/physrevb.85.184505
  • Peer Reviewed
• [Journal Article] Infrared Measurement of the Pseudogap of P-Doped and Co-Doped High-Temperature BaFe2As2 Superconductors (2012)
  • Author(s): S. J. Moon
  • Journal Title: Phys. Rev. Lett. Volume: 109 Issue: 2 Pages: 27006-27006
  • DOI: 10.1103/physrevlett.109.027006
  • Peer Reviewed
• [Journal Article] Cyclotron Resonance in the Hidden-Order Phase of URu2Si2 (2012)
  • Author(s): S. Tonegawa, et al.
  • Journal Title: Physcal Review Letters Volume: 109 Issue: 3 Pages: 36401-36401
  • DOI: 10.1103/physrevlett.109.036401
  • Peer Reviewed
• [Journal Article] Octet-Line Node Structure of Superconducting Order Parameter in KFe2As2 (2012)
  • Author(s): K. Okazaki
  • Journal Title: Science Volume: 337 Issue: 6100 Pages: 1314-1317
  • DOI: 10.1126/science.1222793
  • Peer Reviewed
• [Journal Article] Thermodynamic phase diagram, phase competition, and uniaxial pressure effects in BaFe2(As1-xPx)2 studied by thermal expansion (2012)
  • Author(s): A. E. Bohmer
  • Journal Title: Phys. Rev. B Volume: 86 Issue: 9 Pages: 94521-94521
  • DOI: 10.1103/physrevb.86.094521
  • Peer Reviewed
• [Journal Article] Novel Pauli-paramagnetic quantum phase in a Mott insulator (2012)
  • Author(s): D. Watanabe, et al.
  • Journal Title: Nature Communications Volume: 3 Issue: 1 Pages: 10901-6
  • DOI: 10.1038/ncomms2082
  • Peer Reviewed
• [Journal Article] Anomalous upper critical field in CeCoIn5/YbCoIn5 superlattices with a Rashba-type heavy fermion interface (2012)
  • Author(s): S. K. Goh, et al.
  • Journal Title: Physical Review Letter Volume: 109 Issue: 15 Pages: 157006-15
  • DOI: 10.1103/physrevlett.109.157006
  • Peer Reviewed
• [Journal Article] Strong suppression of superconductivity by divalent ytterbium Kondo holes in CeCoIn5 (2012)
  • Author(s): M. Shimozawa, et al.
  • Journal Title: Physical Review B Volume: 86 Issue: 14 Pages: 144526-144526
  • DOI: 10.1103/physrevb.86.144526
  • Peer Reviewed
• [Journal Article] Extremely strong-coupling superconductivity in artificial two-dimensional Kondo lattices (2011)
  • Author(s): Yuta Mizukami, et al
  • Journal Title: Nature Physics Volume: 7 Issue: 11 Pages: 849-853
  • DOI: 10.1038/nphys2112
  • Peer Reviewed
• [Journal Article] Rotational Symmetry Breaking in the Hidden-Order Phase of Uru_2Si_2 (2011)
  • Author(s): R. Okazaki, T. Shibauchi, H. J. Shi, Y. Haga, T. D. Matsuda, E. Yamamoto, Y. Onuki, H. Ikeda, Y. Matsuda
  • Journal Title: Science Volume: 331 Issue: 6016 Pages: 439-442
  • DOI: 10.1126/science.1197358
  • Peer Reviewed
• [Journal Article] Highly Mobile Gapless Excitations in a Two-Dimensional Candidate 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: 328-1246 Issue: 5983 Pages: 1-1
  • DOI: 10.1126/science.1188200
  • Peer Reviewed
• [Journal Article] Tuning the Dimensionality of the Heavy fermion compound CeIn_3 (2010)
  • Author(s): H. Shishido, T. Shibauchi, K. Yasu, T. Kato, H. Kontani, T. Terashima, and Y. Matsuda
  • Journal Title: Science Volume: 327 Issue: 5968 Pages: 980-983
  • DOI: 10.1126/science.1183376
  • Peer Reviewed
• [Journal Article] M. Yamashita, N. Nakata, Y. Kasahara, T. Sasaki, N. Yoneyama, N. Kobayashi, S. Fujimoto, T. Shibauchi, and Y. Matsuda (2009)
  • Author(s): Thermal-transport measurements in a quantum spin-liquid state of the frustrated triangular magnet k-(BEDT-TTF)2Cu2(CN)3
  • Journal Title: Nature Physics Volume: 5 Issue: 1 Pages: 44-47
  • DOI: 10.1038/nphys1134
  • Peer Reviewed
• [Presentation] Quantum spin liquid (2013)
  • Author(s): Yuji Matsuda
  • Organizer: 3rd Japan-Israel Binational Workshop on Quantum Phenomena
  • Place of Presentation: 沖縄
• [Presentation] Two dimensional confinement of heavy fermion in artificial superlattices (2013)
  • Author(s): Yuji Matsuda
  • Organizer: REIMEI-Workshop: Heavy Fermion Superconductivity explored by anisotropic magnetic fluctuations in actinide compounds
  • Place of Presentation: 東京
• [Presentation] Superconducting gap structure (2013)
  • Author(s): Yuji Matsuda
  • Organizer: hidden quantum criticality and nematic transition in BaFe2(As1-xPx)2,Bristol-Kyoto Symposium
  • Place of Presentation: ブリストル(イギリス)
• [Presentation] Superconducting gap structure, hidden quantum criticality and nematic transition in BaFe2(As1-xPx)2 (2013)
  • Author(s): Yuji Matsuda
  • Organizer: Bristol-Kyoto symposium
  • Place of Presentation: Bristol, UK
  • Invited
• [Presentation] Two dimensional confinement of heavy fermion in artificial superlattices (2013)
  • Author(s): Yuji Matsuda
  • Organizer: REIMEI-Workshop: Heavy fermion superconductivity explored by anisotropic magnetic fluctuations in actinide compounds
  • Place of Presentation: Tokyo, Japan
  • Invited
• [Presentation] Quantum spin liquid (2013)
  • Author(s): Yuji Matsuda
  • Organizer: 3rd Japan-Israel Binational Workshop on Quantum Phenomena
  • Place of Presentation: Okinawa, Japan
  • Invited
• [Presentation] Novel Pauli paramagneticquantum phase in a Mott insulator (2012)
  • Author(s): Yuji Matsuda
  • Organizer: Exotic Phases of Frustrated Magnets Conference
  • Place of Presentation: サンタバーバラ(アメリカ)
• [Presentation] Two dimensional confinement of heavy fermion in artificial superlattices (2012)
  • Author(s): Yuji Matsuda
  • Organizer: Materials and Mechanism of Superconductivity
  • Place of Presentation: ワシントンンDC(アメリカ)
• [Presentation] Nematic transition and quantum critical point in iron-pnictide superconductors (2012)
  • Author(s): Yuji Matsuda
  • Organizer: Japanese-German Symposium
  • Place of Presentation: 伊豆
• [Presentation] Quantum criticality and electronic nematic phase in iron-pnictides (2012)
  • Author(s): Yuji Matsuda
  • Organizer: 19th International Conference on Magnetism with Strongly Correlated Electron Systems
  • Place of Presentation: プサン(韓国)
• [Presentation] Novel Pauli-paramagnetic quantum phase in a Mott insulator (2012)
  • Author(s): Yuji Matsuda
  • Organizer: International Workshop Itinerant Spin-orbital Systems: from MagneticFrustration to Novel Superconductivity
  • Place of Presentation: ドレスデン(ドイツ)
• [Presentation] Superconducting gap structure of iron-pnictide superconductors (2012)
  • Author(s): Yuji Matsuda
  • Organizer: International Conference on Superconductivity and Magnetism
  • Place of Presentation: イスタンブール(トルコ)
• [Presentation] Superconducting gap structure of iron-pnictide superconductors (2012)
  • Author(s): Yuji Matsuda
  • Organizer: International Conference on Superconductivity and Magnetism
  • Place of Presentation: Pusan, Korea
  • Invited
• [Presentation] Novel Pauli-paramagnetic quantum phase in a Mott insulator (2012)
  • Author(s): Yuji Matsuda
  • Organizer: International Workshop Itinerant spin-orbital systems: from magnetic frustration to novel superconductivity
  • Place of Presentation: Dresden, Germany
  • Invited
• [Presentation] Quantum criticality and electronic nematic phase in iron-pnictides (2012)
  • Author(s): Yuji Matsuda
  • Organizer: The 19th International Conference on Magnetism (ICM) with Strongly Correlated Electron Systems
  • Place of Presentation: Pusan, Korea
  • Invited
• [Presentation] Nematic transition and quantum critical point in iron-pnictide superconductors (2012)
  • Author(s): Yuji Matsuda
  • Organizer: Japanese-German Symposium
  • Place of Presentation: Izu, Japan
• [Presentation] Two dimensional confinement of heavy fermion in artificial superlattices (2012)
  • Author(s): Yuji Matsuda
  • Organizer: Materials and Mechanism of Superconductivity
  • Place of Presentation: Washington,D.C., USA
  • Invited
• [Presentation] Novel Pauli paramagntic quantum phase in a Mott insulator (2012)
  • Author(s): Yuji Matsuda
  • Organizer: Exotic Phases of Frustrated Magnets conference
  • Place of Presentation: Santa Barbara, CA, USA
  • Invited
• [Presentation] Superconducting gap symmetry of iron-pnictide superconductors (2012)
  • Author(s): Y. Matsuda
  • Organizer: American Physical Society Meeting(招待講演)
  • Place of Presentation: Boston, USA
• [Book] 超伝導現象と高温超伝導 (2013)
  • Author(s): 松田祐司
  • Publisher: NTS出版