Magnetic excitations in the hidden ordered state of ultra-pure uranium based superconductor.

2011 Fiscal Year Final Research Report

• Project/Area Number: 21540374
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: KAMBE Shinsaku 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主席 (40224886)
• Project Period (FY): 2009 – 2011
• Keywords: 超伝導 / 隠れた秩序 / NMR

Research Abstract

Ultra-pure single crystal sample of non-conventional superconductor URu_2Si_2 is prepared. Using this sample, S^^<29> i-NMR measurements are performed. The hidden-ordered state of URu_2Si_2 is clarified. Especially, rotation symmetry in the ordered state is clarified.

Research Products

• [Journal Article] Correlation between the superconducting pairing symmetry and magnetic anisotropy in f-electron unconventional superconductors (2012)
  • Author(s): S. Kambe, H. Sakai, Y. Tokunaga and K. Kaneko
  • Journal Title: J. Phys. Conf. series Volume: 344 Pages: 012003
  • DOI: DOI:10.1088/1742-6596/344/1/012003
  • Peer Reviewed
• [Journal Article] T-dependent Nuclear Hyperfine Coupling at the In site in CeIrIn_5 (2011)
  • Author(s): S. Kambe, H. Sakai, Y. Tokunaga, T. D. Matsuda, Y. Haga, T. Takeuchi, Y. Onuki and R. E. Walstedt
  • Journal Title: J. Phys. Soc Volume: 80 Pages: SA09
  • DOI: DOI:10.1143/JPSJS.80SA.SA009
  • Peer Reviewed
• [Journal Article] Quantum critical behavior in heavy fermion superconductor CeIrIn_5 (2010)
  • Author(s): S. Kambe, H. Sakai, Y. Tokunaga and R. E. Walstedt
  • Journal Title: Phys Rev Volume: 82 Pages: 144503
  • DOI: DOI:10.1103/PhysRevB.82.144503
  • Peer Reviewed
• [Journal Article] One-component description for magnetic excitations in heavy fermion CeIrIn_5 (2010)
  • Author(s): S. Kambe, Y. Tokunaga, H. Sakai, H. Chudo, Y. Haga, T. D.
  • Journal Title: Matsuda and R. E. Walstedt : Phys. Rev. B 81 Rapid commun Volume: 81 Pages: 140405
  • DOI: DOI:10.1103/PhysRevB.81.140405
  • Peer Reviewed
• [Journal Article] Evidence for appearance of an internal field in the ordered state of CeRu2Al10 byμ+SR (2010)
  • Author(s): S. Kambe, H. Chudo, Y. Tokunaga, T. Koyama, H. Sakai, T. U. Ito, N. Kazuhiko, W. Higemoto, T. Takesaka, T. Nishioka and Y. Miyake, J.
  • Journal Title: Phys. Soc. Jpn Volume: 79 Pages: 053708
  • DOI: DOI:10.1143/JPSJ.79.053708
  • Peer Reviewed
• [Journal Article] Diagnosis of Quantum Criticality by Nuclear Spin-echo decay Method (2010)
  • Author(s): S. Kambe, H. Sakai, Y. Tokunaga, H. Chudo and R. E. Walstedt
  • Journal Title: Physica Status Solidi B Volume: 247 Pages: 520
  • DOI: DOI:10.1002/pssb.20100520
  • Peer Reviewed
• [Journal Article] Quantum criticality in a uranium heavy fermion system revealed with NMR spin-spin relaxation (2010)
  • Author(s): S. Kambe, H. Sakai, Y. Tokunaga, T. D Matsuda, Y. Haga, H. Yasuoka, H. Chudo and R. E. Walstedt
  • Journal Title: J. Phys.: Conf. Ser Volume: 200 Pages: 012076
  • DOI: DOI:10.10088/1742-6596/200/1/012076
  • Peer Reviewed
• [Presentation] JAEAアクティビティ (2012)
  • Author(s): 神戸振作
  • Organizer: ASRCワークショップ
  • Place of Presentation: ラウエランジュバン研究所
  • Year and Date: 2012-02-07
• [Presentation] 単結晶YRh_2Si_2のNMR (2011)
  • Author(s): 神戸振作
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-24
• [Presentation] アクチノイド化合物のNMR (2011)
  • Author(s): 神戸振作
  • Organizer: アメリカ化学会
  • Place of Presentation: デンバー
  • Year and Date: 2011-09-08
• [Presentation] アクチノイドNMR研究 (2010)
  • Author(s): 神戸振作
  • Organizer: スピ二クス研究会
  • Place of Presentation: 茨城大学
  • Year and Date: 2010-10-26
• [Presentation] 単結晶URu_2Si_2のNMR (2010)
  • Author(s): 神戸振作
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-26
• [Presentation] f電子系超伝導体の磁気異方性 (2010)
  • Author(s): 神戸振作
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-17
• [Presentation] CeIrIn_5のNMR (2010)
  • Author(s): 神戸振作
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-17
• [Presentation] f電子系の超伝導 (2010)
  • Author(s): 神戸振作
  • Organizer: EU-RACTNMR
  • Place of Presentation: カールスルーエ
  • Year and Date: 2010-01-23
• [Presentation] USn_3のNMR (2009)
  • Author(s): 神戸振作
  • Organizer: 日本物理学会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-23