Investigation of novel quantum states in actinide-based compounds with unstable valence

2012 Fiscal Year Final Research Report

• Project/Area Number: 20224015
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: Nagoya University
• Principal Investigator: SATO Noriaki 名古屋大学, 理学研究科, 教授 (30170773)
• Co-Investigator(Kenkyū-buntansha): AMITSUKA Hiroshi 北海道大学, 理学研究院, 教授 (40212576) ; YAMAMURA Tomoo 東北大学, 金属材料研究所, 准教授 (20281983) ; HAGA Yoshinori 日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (90354901) ; SHIKAMA Tatsuo 東北大学, 金属材料研究所, 教授 (30196365)
• Co-Investigator(Renkei-kenkyūsha): ASO Naofumi 琉球大学, 理学部, 准教授 (40313118) ; KANBE Shinsaku 日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (40224886) ; HONMA Yoshiya 東北大学, 金属材料研究所, 助教 (00260448) ; FUJIMORI Shinichi 日本原子力研究開発機構, 量子ビーム応用研究部門, 主任研究員 (70343936) ; YAMAGAMI Hiroshi 京都産業大学, 理学部, 教授 (20239867)
• Project Period (FY): 2008 – 2012
• Keywords: アクチノイド / 重い電子系 / 磁性 / 超伝導

Research Abstract

The main purpose of this project is to establish a base institute for the study on the actinide physics. For this purpose, we constructed a tetra-arc furnace at Laboratory of alpha-Ray Emitters, Insitute for Materials Research, Tohoku University, for the single crystal growth of uranium-based materials, and set up commercial equipmentsfor the measurements of the physical properties of grown single crystals as well. Furthermore, we opened a new avenue of research on novel phenomena that will be related to valence instability in both 4f and 5f electron systems including quasicrystals.

Research Products

• [Journal Article] Γ_3-Type Lattice Instability and the Hidden Order of Uru_2Si_2by Precise dc MagnetizationMeasurements (2013)
  • Author(s): T. Yanagisawa 他9名
  • Journal Title: J. Phys. Soc. Jpn. Volume: 82 Pages: 013601-1-5
  • Peer Reviewed
• [Journal Article] Band Structure and Fermi Surface of Upd_3 Studied by Soft x-Ray Angle-Resolved PhotoemissionSpectroscopy (2013)
  • Author(s): I. Kawasaki, S. Fujimori, Y. Takeda, T. Okane, A. Yasui, Y. Saitoh, H. Yamagami, Y. Haga, E. Yamamoto, and Y. Onuki
  • Journal Title: Phys. Rev. Volume: B 87 Pages: 075142-1-6
  • Peer Reviewed
• [Journal Article] Quantum critical state in a magnetic quasicrystal (2012)
  • Author(s): K. Deguchi, S. Matsukawa, N.K. Sato, T. Hattori, K. Ishida, H. Takakura and T. Ishimasa
  • Journal Title: Nature Materials Volume: 11 Pages: 1013-1016
  • Peer Reviewed
• [Journal Article] Superconductivity Induced by Longitudinal Ferromagnetic Fluctuations in UCoGe (2012)
  • Author(s): T. Hattori, Y. Ihara, Y. Nakai, K. Ishida, Y. Tada, S. Fujimoto, N. Kawakami, E. Osaki, K. Deguchi, N. K. Sato, and I. Satoh
  • Journal Title: Phys. Rev. Lett. Volume: 108 Pages: 66403-1-4
  • Peer Reviewed
• [Journal Article] Observation of an Unusual Magnetic Anomaly in the Superconducting Mixed State of Heavy-Fermion Compound UBe13by Precise dc Magnetization Measurements (2012)
  • Author(s): Y. Shimizu, Y. Haga, Y. Ikeda, T.Yanagisawa, and H. Amitsuka
  • Journal Title: Phys. Rev. Lett. Volume: 109 Pages: 217001-1-5
  • Peer Reviewed
• [Journal Article] Cyclotron Resonance in the Hidden-Order Phase of Uru_2Si_2 (2012)
  • Author(s): S. Tonegawa 他11名
  • Journal Title: Phys. Rev. Lett. Volume: 106 Pages: 36401-1-4
  • Peer Reviewed
• [Journal Article] Observation of two fine structures related to the hidden order in the spectral functions of Uru_2Si_2 (2012)
  • Author(s): R. Yoshida 他9名
  • Journal Title: Phys. Rev. Volume: B 85 Pages: 241102
  • Peer Reviewed
• [Journal Article] Non-Fermi Liquid State Bounded by a Possible Electronic Topological Transition in ZrZn_2 (2012)
  • Author(s): N. Kabeya, H. Maekawa, K. Deguchi, N.Kimura, H. Aoki, and N. K. Sato
  • Journal Title: J. Phys. Soc. Jpn Volume: 81 Pages: 07370-1-4
  • Peer Reviewed
• [Journal Article] ウラン電池からバナジウム固体塩電池(VSSB)へ (2012)
  • Author(s): 山村朝雄
  • Journal Title: 放射化学ニュース Volume: 24 Pages: 61-66
• [Journal Article] Discontinuous Transition from a Real Bound State to Virtual Bound State in a Mixed-Valence State of SmS (2011)
  • Author(s): K. Imura, S.Kanematsu, K. Matsubayashi,H. S Suzuki, K. Deguchi, N. K Sato
  • Journal Title: J. Phys. Soc. Jpn. Volume: 80 Pages: 113704-1-4
  • 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 and Y. Matsuda
  • Journal Title: Science Volume: 331 Pages: 439-442
  • Peer Reviewed
• [Journal Article] ^Co-Nuclear Quadrupole Resonance and Nuclear Magnetic Resonance Studies on YCoGe-Comparison between YCoGe and UCoGe (2011)
  • Author(s): Science
  • Journal Title: J. Phys. Soc. Jpn. Volume: 80 Pages: 64711
  • Peer Reviewed
• [Journal Article] Anisotropic magnetic fluctuations in the ferromagnetic superconductor UCoGe studied by direction-dependent ^Co NMR measurements (2010)
  • Author(s): Y. Ihara 他7名
  • Journal Title: Phys. Rev. Lett. Volume: 105 Pages: 206403-1-4
  • Peer Reviewed
• [Journal Article] Absence of Meissner State and Robust Ferromagnetism in the Superconducting State of UCoGe: Possible Evidence of Spontaneous Vortex State (2010)
  • Author(s): K. Deguchi, E. Osaki, S. Ban, N. Tamura,Y. Simura, T. Sakakibara, I. Satoh and N. K. Sato
  • Journal Title: J. Phys. Soc. Jpn. Volume: 79 Pages: 083708-1-4
  • Peer Reviewed
• [Journal Article] Microscopic Coexistence of Ferromagnetism and Superconductivity in Single-Crystal UCoGe (2010)
  • Author(s): T. Ohta 他7名
  • Journal Title: J. Phys. Soc. Jpn. Volume: 79 Pages: 023707-1-4
  • Peer Reviewed
• [Book] 磁性と超伝導の物理-重い電子系の理解のために (2013)
  • Author(s): 佐藤憲昭 ・ 三宅和正
  • Total Pages: 390
  • Publisher: 名古屋大学出版会
• [Book] 宇宙史を物理学で読み解く-素粒子から物質・生命まで- (2010)
  • Author(s): 佐藤憲昭(分担執筆), 福井康雄 監修、飯島徹・杉山直・平島大・伊藤繁 編
  • Total Pages: 174-184
  • Publisher: 名古屋大学出版会
• [Remarks] ホームページ
  • URL: http://mlbp.phys.nagoya-u.ac.jp/
• [Remarks] 1. 準結晶に関する記事朝日新聞および中日新聞、2012年10月8日
• [Remarks] 2.UCoGeに関する記事中日新聞、2012年2月7日 他2紙
• [Remarks] 3. UCoGeに関する記事科学新聞、2010年3月5日
• [Remarks] 4. URu2Si2に関する記事日刊工業新聞、平成23年1月28日 他3紙
• [Patent(Industrial Property Rights)] バナジウムレドックス電池及びその運転方法 (2013)
  • Inventor(s): 山村朝雄, 坂本清志, 吉田茂樹
  • Industrial Property Rights Holder: ブラザー工業(株)
  • Industrial Property Number: 2013-073613
  • Filing Date: 2013-03-29
• [Patent(Industrial Property Rights)] 固体活物質を含むバナジウム電池 (2012)
  • Inventor(s): 山村朝雄
  • Industrial Property Rights Holder: 東北大学
  • Industrial Property Number: 2012-038057号
  • Filing Date: 2012-02-23
• [Patent(Industrial Property Rights)] 電池及びその方法 (2012)
  • Inventor(s): 山村朝雄, 佐藤伊佐務
  • Industrial Property Rights Holder: 東北大学
  • Industrial Property Number: 2012-007125号
  • Filing Date: 2012-01-17