Development and Microscopic magnetic characterization of actinide layered compounds

2011 Fiscal Year Final Research Report

• Project/Area Number: 21750067
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Inorganic chemistry
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: SAKAI Hironori 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, 研究員 (80370401)
• Project Period (FY): 2009 – 2011
• Keywords: 無機固体化学

Research Abstract

Single crystals of actinide layered compounds ThCuPO and UCuPO have been successfully grown by the chemical transport method. Using these single crystals, the crystal structures and chemical compositions have been evaluated. The measurements of resistivity, specific heat, and magnetization for UCuPO have revealed that the strong magnetic anisotropy causes from the localized 5f electrons of uranium and the metallic conductivity occurs mainly owing to the layers of copper and phosphorus. For comparison, the microscopic magnetism has been investigated in the strongly correlated electron systems CeCoIn_5(superconductor), CePt_2In_7(antiferromagnet), etc. by means of nuclear magnetic resonance technique.

Research Products

• [Journal Article] Magnetic-Field-Induced Enhancements of Nuclear Spin-Lattice Relaxation Rates in the Heavy-Fermion Superconductor CeCoIn5 Using 59Co Nuclear Magnetic Resonance (2011)
  • Author(s): H. Sakai, S. E. Brown, S.-H. Baek, F. Ronning, E. D. Bauer and J. D. Thompson
  • Journal Title: Physical Review Letters Volume: 107 Pages: 137001-(1)-(4)
  • DOI: DOI:10.1103/PhysRevLett.107.137001
• [Journal Article] Stabilization of Commensurate Antiferromagnetism in CePt_2In_7 by Pressure Up to 2.4 GPa : I^^<115> n NMR and NQR under Zero Field (2011)
  • Author(s): H. Sakai, Y. Tokunaga, S. Kambe, H.-O. Lee, V. A. Sidorov, P. H. Tobash, F. Ronning, E. D. Bauer and J. D. Thompson
  • Journal Title: Physical Review B Volume: 83 Pages: 140408(R)-(1)-(4)
  • DOI: DOI:10.1103/PhysRevB.83.140408
  • Peer Reviewed
• [Journal Article] Anisotropy of antiferromagnetic spin fluctuations in the heavy fermion superconductors of CeMIn_5 and PuMGa_5(M=Co, Rh) (2010)
  • Author(s): H. Sakai, S. Kambe, Y. Tokunaga, Y. Haga, S.-H. Baek, F. Ronning, E. D. Bauer and J. D. Thompson
  • Journal Title: Mater. Res. Soc. Symp. Proc. Volume: 1264 Pages: 69-79
  • URL: http://dx.doi.org/10.1557/PROC-1264-Z12-01
  • Peer Reviewed
• [Journal Article] Anisotropic Spin Fluctuations and Superconductivity in "115" Heavy Fermion Compounds : C^^<59> o NMR Study in PuCoGa_5 (2010)
  • Author(s): S.-H. Baek, H. Sakai, E. D. Bauer, J. N. Mitchell, J. A. Kennison, F. Ronning and J. D. Thompson
  • Journal Title: Physical Review Letters Volume: 105 Pages: 217002-(1)-(4)
  • DOI: DOI:10.1103/PhysRevLett.105.217002
  • Peer Reviewed
• [Journal Article] Crystal Structure and Physical Properties of Uranium. Copper Oxyphosphide UCuPO (2010)
  • Author(s): H. Sakai, N. Tateiwa, T. D. Matsuda, T. Sugai, E. Yamamoto and Y. Haga
  • Journal Title: Journal of Physical Society of Japan Volume: 79 Pages: 074721-(1)-(5)
  • DOI: DOI:10.1143/JPSJ.79.074721
  • Peer Reviewed
• [Journal Article] Possible Existence of Magnetic Polaron in Nearly Ferromagnetic Semiconductorβ-US_2 (2009)
  • Author(s): S. Ikeda, H. Sakai, N. Tateiwa, T. D. Matsuda, D. Aoki, Y. Homma, E. Yamamoto, A. Nakamura, Y. Shiokawa, Y. Ota, K. Sugiyama, M. Hagiwara, K. Kindo, K. Matsubayashi, M. Hedo, Y. Uwatoko, Y. Haga and Y. Onuki
  • Journal Title: Journal of Physical Society of Japan Volume: 78 Pages: 11704-(1)-(10)
  • DOI: DOI:10.1143/JPSJ.78.114704
  • Peer Reviewed
• [Presentation] Anisotropic Spin Fluctuations in the Heavy Fermion Systems : Nuclear Magnetic Resonance Study (2011)
  • Author(s): H. Sakai, H. Chudo, Y. Tokunaga, S. Kambe, Y. Haga, F. Ronning, E. D. Bauer, J. D. Thompson, Y. Homma, D. Aoki, Y. Nakano, F. Honda, R. Settai, Y. Onuki
  • Organizer: TOKIMEKI2011 International Workshop on Heavy Fermions
  • Place of Presentation: Osaka, Japan
  • Year and Date: 2011-11-24
• [Presentation] 反強磁性体CePt_2In_7における単結晶試料を用いたNQR/NMR研究 (2011)
  • Author(s): 酒井宏典、徳永陽、神戸振作、H.-O. Lee、V. A. Sidorov、P. H. Tobash、F. Ronning、E. D. Bauer、J. D. Thompson
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-21
• [Presentation] ウラン元素を含むオキシニクタイドUCuPOの単結晶育成と物性 (2010)
  • Author(s): 酒井宏典、立岩尚之、松田達磨、菅井孝志、山本悦嗣、芳賀芳範
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-26
• [Presentation] d波超伝導体CeCoIn_5におけるスピン揺らぎの異方性と関連物質の比較 (2010)
  • Author(s): 酒井宏典、徳永陽、神戸振作、芳賀芳範、S.-H. Baek、S. E. Brown、F. Ronning、E. D. Bauer、J. D. Thompson
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-24
• [Presentation] Anisotropy of antiferromagnetic spin fluctuations in the heavy fermion superconductors of CeMIn_5 and PuMGa_5(M=Co, Rh) (2010)
  • Author(s): H. Sakai, S. Kambe, Y. Tokunaga, Y. Haga, S.-H. Baek, F. Ronning, E. D. Bauer and J. D. Thompson
  • Organizer: MRS Spring Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2010-04-09
• [Remarks] ホームページ等(プレス発表)
  • URL: http://www.jaea.go.jp/02/press2011/p11091501/index.html
• [Remarks] ホームページ等(所属機関・研究グループホームページ)
  • URL: http://asrc.jaea.go.jp/soshiki/gr/kambe-gr/index.html