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NMR Investigation of the localized and delocalized Nature of Uranium Compounds

Research Project

Project/Area Number 19540385
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

YASUOKA Hiroshi  Japan Atomic Energy Agency, 先端基礎研究センター, 研究員 (50026027)

Co-Investigator(Kenkyū-buntansha) KAMBE 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)
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)
Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords核磁気共鳴 / 重い電子系 / 局在・非局在 / 超伝導
Research Abstract

(1) From the detailed NMR measurements for Sn and In nuclei in typical uranium compounds, USn_3 and UIn_3, we have clarified that an antiferromagnetic spin fluctuation is playing the essential role of the electronic state of high temperatures. (2) ^<27>Al NMR shift and relaxation studies have clarified an d-wave superconductivity in newly developed Np compound, NpPd_5Al_2. It is also found that high temperature spin dynamics is highly anisotropic, having dramatic decrease of the fluctuations along the c-axis at low temperature.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (38 results)

All 2010 2009 2008 2007 2006

All Journal Article (24 results) (of which Peer Reviewed: 22 results) Presentation (13 results) Book (1 results)

  • [Journal Article] Anisotropic spin fluctuations in Heavy-fermion superconductor NpPd5Al2:2010

    • Author(s)
      H. Chudo, H. Sakai, Y. Tokunaga, S. Kambe, D. Aoki, Y. Homma, Y. Haga, T.D. Matsuda, Y. Onuki, H. Yasuoka
    • Journal Title

      J. Phys. Soc. Jpn. Vol.79

      Pages: 53704-53704

    • NAID

      210000108321

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropic spin fluctuations in Heavy-fermion superconductor NpPd_5Al_22010

    • Author(s)
      H.Chudo, H.Sakai, 他
    • Journal Title

      J.Phys.Soc.Japan 79

      Pages: 53704-53708

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] プルトニウム2010

    • Author(s)
      安岡弘志
    • Journal Title

      岩波「科学」 80

      Pages: 162-169

    • Related Report
      2009 Annual Research Report
  • [Journal Article] 27Al NMR studies of NpPd5Al22009

    • Author(s)
      H. Chudo, H. Sakai, Y. Tokunaga, S. Kambe, D. Aoki, Y. Homma, Y. Shiokawa, Y. Haga, S. Ikeda, T.D. Matsuda, Y. Onuki, H. Yasuoka
    • Journal Title

      Physcia B 404

      Pages: 3216-3216

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Novel phase transition in CeRu2Al10 probed by 27Al-NQR/NMR2009

    • Author(s)
      M. Matsumura, Y. Kawamura, S. Edamoto, T. Takesaka, H. Kato, T. Nishioka, Y. Tokunaga, S. Kambe, H. Yasuoka
    • Journal Title

      J. Phys. Soc. Jpn. 78

      Pages: 123713-123713

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Localized 5f antiferromagnetism in cubic Uin_3 : ^<115>In-NQR/NMR study2009

    • Author(s)
      H.Sakai, S.Kambe, 他
    • Journal Title

      Physical Review B79

      Pages: 104426-104432

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Localized 5f antiferromagnetism in cubic UIn_3 : ^<115>In-NQR/NMR study2009

    • Author(s)
      H. Sakai, H. Yasuoka, 他
    • Journal Title

      Phys. Rev. B 79

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ^<31>P-NMR study of hyperfine interactions and magnetic fluctuations in the neptunium-based filled skutterudite NpFe_4P_<12>2009

    • Author(s)
      Y. Tokunaga, H. Yasuoka, 他
    • Journal Title

      Phys. Rev. B 79

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hyperfine interaction in the itinerant system UFeGa_52009

    • Author(s)
      S. Kambe, H. Yasuoka, 他
    • Journal Title

      J. Nucl. Mat. 385

      Pages: 1-4

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] La-NMR Study on a La Dilute System of PrPb_32009

    • Author(s)
      Y. Tokunaga, H. Yasuoka, 他
    • Journal Title

      J. Phys 150

      Pages: 42211-4

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 27Al NMR Evidence for the Strong-Coupling d-Wave Superconductivity in NpPd5 Al22008

    • Author(s)
      H. Chudo, H. Sakai, Y. Tokunaga, S. Kambe, D. Aoki, Y. Homma, Y. Shiokawa, Y. Haga, S. Ikeda, T.D. Matsuda, Y. Onuki, H. Yasuoka
    • Journal Title

      J. Phys. Soc. Jpn. 77

    • NAID

      210000107361

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 31P-NMR Study of the Neptunium-Based Filled Skutterudite NpFe4P122008

    • Author(s)
      Y. Tokunaga, D. Aoki, Y. Homma, H. Sakai, H. Chudo, S. Kambe, T.D. Matsuda, S. Ikeda, E. Yamamoto, A. Nakamura, Y. Haga, Y. Shiokawa, Y. Onuki, H. Yasuoka
    • Journal Title

      J. Phys. Soc. Jpn. 77Suppl.A

      Pages: 211-213

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] ^<27>Al NMR evidence for the strong coupling d-wave superconductivity in NpPd_5Al_22008

    • Author(s)
      H. Chudo, H. Yasuoka, 他
    • Journal Title

      J. Phys. Soc. Jpn. 77

      Pages: 83702-83705

    • NAID

      110006914819

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] NMR investigation of quadrupole order parameter in actinide dioxides2008

    • Author(s)
      Y. Tokunaga, H. Yasuoka, 他
    • Journal Title

      J. Optoelectronis and advanced materials 10

      Pages: 1663-3

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Perspective of Research on Transuranium Compounds2007

    • Author(s)
      H. Yasuoka
    • Journal Title

      Online-News and Comments Vo.11

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 17O NMR Spin-Lattice Relaxation in NpO2: Field Dependent Cross Relaxation ProcessDriven by 237Np Spins2007

    • Author(s)
      Y. Tokunaga, R.E. Walstedt, Y. Homma, D. Aoki, S. Kambe, H. Sakai, T. Fujimoto, S. Ikeda, E. Yamamoto, A. Nakamura, Y. Shiokawa, H. Yasuoka
    • Journal Title

      J. Phys. Chem. Sol. 68

      Pages: 2016-2019

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] NMR Studies of Actinide Dioxides2007

    • Author(s)
      Y. Tokunaga, H. Sakai, T. Fujimoto, S. Kambe, R.E. Walstedt, K. Ikushima, H. Yasuoka, D. Aoki, Y. Homma, Y. Haga, T.D. Matsuda, S. Ikeda, E. Yamamoto, A. Nakamura, Y. Shiokawa, K. Nakajima, Y. Arai, Y. Onuki
    • Journal Title

      J. Alloys Compds. 444-445

      Pages: 241-241

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropic Spin Fluctuations and Anomalies of Nuclear Quadrupole Interactions in the Itinerant Antiferromagnet NpCoGa5: 59Co NMR and 69, 71Ga NMR/NQR Studies2007

    • Author(s)
      H. Sakai, S. Kambe, Y. Tokunaga, T. Fujimoto, R.E. Walstedt, H. Yasuoka, D. Aoki, Y. Homma, E. Yamamoto, A. Nakamura, Y. Shiokawa, Y. Onuki
    • Journal Title

      Phys. Rev. B 76

      Pages: 24410-24410

    • Related Report
      2009 Final Research Report
  • [Journal Article] Perspective of Research on Transuranium Compounds2007

    • Author(s)
      H. Yasuoka
    • Journal Title

      JPSJ Online-News and Comments June11

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropic spin fluctuations and anomalies of nucleaz quadrupole interactions in itinerant antiferromagnet NpCoGa_52007

    • Author(s)
      H. Sakai, 他
    • Journal Title

      Physical Review B 76

      Pages: 244101-14

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] NMR study of neptunium and plutonium compounds2007

    • Author(s)
      Y. Tokunaga, 他
    • Journal Title

      J.Alloys and Compounds 444-445

      Pages: 244-247

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ga NQR relaxation rates in superconductor PuRhGa_52007

    • Author(s)
      H. Sakai, 他
    • Journal Title

      J.Phys.Chem.Solids 68

      Pages: 2103-2106

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 17O NMR spin-lattice relaxation in NpO_2:field-dependent cross-relaxation process driven by 237Np spins2007

    • Author(s)
      Y. Tokunaga, 他
    • Journal Title

      J.Phys.Chem.Solids 68

      Pages: 2016-2019

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] NMR study of actinide compounds, The NMR of actinide Nuclei2006

    • Author(s)
      R.E. Walstedt, Y. Tokunga, H. Kato, H. Sakai, T. Fujimoto, S. Kambe, H. Yasuoka
    • Journal Title

      J. Phys. Soc. Jpn. Suppl.77-81

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Presentation] ネプツニウム化合物超伝導体NpPd5Al2の27Alによる研究2010

    • Author(s)
      中堂博之、神戸振作、安岡弘志, 等
    • Organizer
      日本物理学会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] CeIrIn_5のIn-NMR2009

    • Author(s)
      神戸振作, 安岡弘志, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] 新規超伝導体NpPd_5Al_2の^<27>Al NMRによる研究42009

    • Author(s)
      中堂博之, 安岡弘志, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] CeIrIn5のIn-NMR2008

    • Author(s)
      神戸振作、安岡弘志, 他
    • Organizer
      日本物理学会
    • Year and Date
      2008-09-27
    • Related Report
      2009 Final Research Report
  • [Presentation] 反強磁性体CePd5Al2の核磁気共鳴法による研究2008

    • Author(s)
      酒井宏典、安岡弘志, 他
    • Organizer
      日本物理学会
    • Year and Date
      2008-09-22
    • Related Report
      2009 Final Research Report
  • [Presentation] 反強磁性体CePd_5Al_2の核磁気共鳴法による研究2008

    • Author(s)
      酒井宏典, 安岡弘志, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] USn3のスピン―スピン緩和2008

    • Author(s)
      神戸振作、安岡弘志, 他
    • Organizer
      日本物理学会
    • Year and Date
      2008-09-21
    • Related Report
      2009 Final Research Report
  • [Presentation] USn_3のスピン-スピン緩和2008

    • Author(s)
      神戸振作, 安岡弘志, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] 新規超伝導体NpPd_5Al_2の^<27>Al NMRによる研究32008

    • Author(s)
      中堂博之, 安岡弘志, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-20
    • Related Report
      2008 Annual Research Report
  • [Presentation] 新規超伝導体NpPd5Al2のAl-NMRによる研究II2008

    • Author(s)
      中堂博之、安岡弘志, 他
    • Organizer
      日本物理学会
    • Year and Date
      2008-03-26
    • Related Report
      2009 Final Research Report
  • [Presentation] 新規超伝導体NpPd5A12のA1-NMRによる研究II2008

    • Author(s)
      中堂 博之, 他
    • Organizer
      日本物理学会第63回年次大会
    • Place of Presentation
      東大阪市
    • Year and Date
      2008-03-26
    • Related Report
      2007 Annual Research Report
  • [Presentation] URhの結晶育成と結晶構造2008

    • Author(s)
      山本悦嗣、芳賀義範, 他
    • Year and Date
      2008-03-23
    • Related Report
      2009 Final Research Report
  • [Presentation] URhの結晶育成と結晶構造2008

    • Author(s)
      山本 悦嗣, 他
    • Organizer
      日本物理学会第63回年次大会
    • Place of Presentation
      東大阪市
    • Year and Date
      2008-03-23
    • Related Report
      2007 Annual Research Report
  • [Book] プルトニウム-魅惑多き元素と化合物2010

    • Author(s)
      安岡弘志
    • Publisher
      岩波書店
    • Related Report
      2009 Final Research Report

URL: 

Published: 2007-04-01   Modified: 2020-05-15  

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