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Mechanism of the magnetic memory effect in uranium compounds

Research Project

Project/Area Number 20540330
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionTohoku University

Principal Investigator

LI Dexin  東北大学, 金属材料研究所, 助教 (40281985)

Co-Investigator(Kenkyū-buntansha) YAMAMURA Tomoo  東北大学, 金属材料研究所, 助教 (20281983)
Co-Investigator(Renkei-kenkyūsha) NIMORI Shigeki  独立行政法人物質・材料研究機構, 強磁場共用ステーション, 主幹エンジニア (60354320)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords磁性 / ウラン化合物 / スピングラス / 磁気メモリー効果 / 磁気緩和 / 磁化率 / 磁気メモリ効果 / f-d(f-p)混成 / f-d(f-P)混成
Research Abstract

The magnetic memory effect of uranium compounds was first observed in this study. We have found a series of new magnetic memory materials containing uranium. Especially, the basic physical properties, such as AC susceptibility and magnetic relaxation were measured for nonmagnetic atom disorder compounds U_2TSi_3, U_2TGa_3 (T=transition metal)and reference compounds R_5T_3Si_7(R=rare earth), and evident magnetic memory effect was observed. The magnetic memory effect in these compounds was observed over a wide temperature range, which can be considered to originate from the random freezing of the frustrated exchange interactions in the spin glass state.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (36 results)

All 2012 2011 2010 2009 2008

All Journal Article (19 results) (of which Peer Reviewed: 19 results) Presentation (17 results)

  • [Journal Article] Magnetic ordering and magnetocaloric effect in PrPdIn and NdPdIn2012

    • Author(s)
      D. X. Li, S. Nimori and Y. Shikama
    • Journal Title

      Journal of Physics : Conference Series

      Volume: (印刷中)

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Random spin freezing in single crystalline Ce_2CuSi_32012

    • Author(s)
      D. X. Li, S. Nimori, S. Ohta, Y. Yamamura and Y. Shikama
    • Journal Title

      Journal of Physics : Conference Series

      Volume: (印刷中)

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Evidence for spin-glass state in nonmagnetic atom disorder compound Pr_2AgIn_32011

    • Author(s)
      D. X. Li, T. Yamamura, K. Yubuta, S. Nimori, Y. Haga, T. Shikama
    • Journal Title

      Journal of Physics : Conference Series

      Volume: 320 Pages: 1-6

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic anisotropy and spin-glass behavior in single crystalline U_2PdSi_32011

    • Author(s)
      D. X. Li, A. Kimura, Y. Haga, S. Nimori and T. Shikama
    • Journal Title

      J. Phys.: Condens. Matter

      Volume: 23 Pages: 1-7

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic anisotropy and spin-glass behavior in single crystalline U_2PdSi_32011

    • Author(s)
      D.X.Li, A.Kimura, Y.Haga, S.Nimori, T.Shikama
    • Journal Title

      J.Phys. : Condens.Matter

      Volume: 23 Pages: 0760031-7

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Giant and anisotropic magnetocaloric effect in antiferromagnetic single crystal-line DySb2010

    • Author(s)
      D. X. Li, S. Nimori, T. Shikama
    • Journal Title

      Solid State Communs

      Volume: 150 Pages: 1865-1868

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] In-situ high-energy x-Ray diffuse-scattering study of the phase transition of Ni2MnGa single crystal under high magnetic field2010

    • Author(s)
      G. Wang, Y. D. Wang, Y. Ren, D. X. Li, Y. D. Liu, P. K. Liaw
    • Journal Title

      Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science

      Volume: 41A Pages: 1269-1275

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Giant and anisotropic magnetocaloric effect in antiferromagnetic single crystalline DySb2010

    • Author(s)
      D.X.Li, S.Nimori, T.Shikama
    • Journal Title

      Solid State Communs.

      Volume: 150 Pages: 1865-1868

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In-Situ High-Energy X-Ray Diffuse-Scattering Study of the Phase Transition of Ni_2MnGa Single Crystal under High Magnetic Field2010

    • Author(s)
      G.Wang, Y.D.Wang, Y.Ren, D.X.Li, Y.D.Liu, P.K.Liaw
    • Journal Title

      Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science

      Volume: 41A Pages: 1269-1275

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin dynamics in a triangular antiferr o-magnet UNi_4B2009

    • Author(s)
      A. Oyamada, M. Kondo, T. Itou, S. Maegawa, D. X. Li, Y. Haga
    • Journal Title

      Journal of Physics : Conference Series

      Volume: 145 Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct observations of ordered R_2CuSi_3 (R=Ce and Nd)cluster glass compounds in real space by HRTEM2009

    • Author(s)
      K. Yubuta, T. Yamamura, D. X. Li, Y. Shiokawa
    • Journal Title

      Solid State Communications

      Volume: 149 Pages: 286-289

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Extended short-range ferromagnetic order with cluster-glass behavior in Dy_2AuSi_32009

    • Author(s)
      D.X.Li, T.Yamamura, S.Nimori, X.Zhao
    • Journal Title

      J.Alloys and Compounds 488

      Pages: 558-561

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin Dynamics in a Triangular Antiferromagnet UNi_4B2009

    • Author(s)
      A.Oyamada, M.Kondo, T.Itou, S.Maegawa, D.X.Li, Y.Haga
    • Journal Title

      Journal of Physics : Conference Series 145

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct observations of ordered R_2CuSi_3 (R= Ce and Nd) cluster glass compounds in real space by HRTEM2009

    • Author(s)
      K. Yubuta, T. Yamamura, D. X. Li, Y. Shiokawa
    • Journal Title

      Solid State Communications 149

      Pages: 286-289

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic properties of the compounds ThCo_2Ge_2 and ThCo_2Si_22008

    • Author(s)
      Moshe Kuznietz, Tomoo Yamamura, Dexin Li, and Yoshinobu Shiokawa
    • Journal Title

      J. Magn. Magn. Mater

      Volume: 320 Pages: 2402-2405

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic ordering in (Th_xU_x)Co_2X_2 (X=Ge, Si)solid solutions2008

    • Author(s)
      T. Yamamura, D. X. Li, M. Kuznietz, Y. Shiokawa
    • Journal Title

      J. Appl. Phys

      Volume: 103 Pages: 1-3

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Volume dependence of the magnetic coupling in LaFe_<13-x> Si_x based compounds2008

    • Author(s)
      L. Jia, J. R. Sun, F. W. Wang, T. Y. Zhao, H. W. Zhang, B. G. Shen, D. X. Li, S. Nimori, Y. Ren, and Q. S. Zeng
    • Journal Title

      Appl. Phys. Lett

      Volume: 92 Pages: 1-3

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ac susceptibility studies of spin freezing behavior in U_2CuSi_32008

    • Author(s)
      D. X. Li, S. Nimori, T. Yamamura, Y. Shiokawa
    • Journal Title

      J. Appl. Phys

      Volume: 103 Pages: 1-3

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Re-entrant spin-glass behaveior in CeAu_2Si_22008

    • Author(s)
      D. X. Li, T. Yamamura, S. Nimori, Y. Shiokawa
    • Journal Title

      J. Alloys and Compounds

      Volume: 451 Pages: 461-463

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Presentation] ウラン化合物U_2PdSi_3における磁気異方性およびスピングラス効果2012

    • Author(s)
      李徳新、芳賀芳範、二森茂樹、四竈樹男
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学西宮上ケ原キャンパス
    • Year and Date
      2012-03-24
    • Related Report
      2010 Final Research Report
  • [Presentation] PrPdIn及びNdPdInの磁気秩序と磁気熱量効果2011

    • Author(s)
      李徳新、二森茂樹、四竈樹男
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学五福キャンパス
    • Year and Date
      2011-09-21
    • Related Report
      2010 Final Research Report
  • [Presentation] PrPdIn及びNdPdInの磁気秩序と磁気熱量効果2011

    • Author(s)
      李徳新、二森茂樹、四竃樹男
    • Organizer
      PrPdIn及びNdPdInの磁気秩序と磁気熱量効果
    • Place of Presentation
      富山大学五福キャンパス
    • Year and Date
      2011-09-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] Tb_5Ni_2Si_8におけるNMADスピングラス現象2010

    • Author(s)
      李徳新、二森茂樹、四竈樹男
    • Organizer
      日本物理学会2010年秋季大会
    • Place of Presentation
      大阪府立大学中百舌鳥キャンパス
    • Year and Date
      2010-09-25
    • Related Report
      2010 Final Research Report
  • [Presentation] Tb_5Ni_2Si_8におけるNMADスピングラス現象2010

    • Author(s)
      李徳新、二森茂樹、四竃樹男
    • Organizer
      Tb_5Ni_2Si_8におけるNMADスピングラス現象
    • Place of Presentation
      大阪府立大学中百舌鳥キャンパス
    • Year and Date
      2010-09-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] 水熱合成により調製されたUO_2の磁性2010

    • Author(s)
      大田卓、山村朝雄、李徳新、本間佳哉、四竈樹男
    • Organizer
      日本原子力学会2010年秋の大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-09-16
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] Giant and Anisotropic Magnetocaloric Effect in Antiferromagnetic Single Crystal-line DySb2010

    • Author(s)
      李徳新、二森茂樹、四竈樹男
    • Organizer
      日本物理学会第56回年次大会
    • Place of Presentation
      岡山大学津島キャンパス
    • Year and Date
      2010-03-22
    • Related Report
      2010 Final Research Report
  • [Presentation] Giant and Anisotropic Magnetocaloric Effect in Antiferromagnetic Single Crystalline DySb2010

    • Author(s)
      李徳新, 二森茂樹, 四竈樹男
    • Organizer
      日本物理学会第56回年次大会
    • Place of Presentation
      岡山大学津島キャンパス
    • Year and Date
      2010-03-22
    • Related Report
      2009 Annual Research Report
  • [Presentation] XY型5f電子系三角格子反強磁性体UNi_4Bの部分無秩序状態2010

    • Author(s)
      宮田香織、小山田明、西山昌秀、伊藤哲明、前川覚、李徳新、芳賀芳範
    • Organizer
      日本物理学会第56回年次大会
    • Place of Presentation
      岡山大学津島キャンパス
    • Year and Date
      2010-03-20
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] 5f電子系三角格子反強磁性体UNi_4Bの部分無秩序状態2009

    • Author(s)
      宮田香織、小山田明、西山昌秀、伊藤哲明、前川覚、李徳新、芳賀芳範
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学黒髪キャンパス
    • Year and Date
      2009-09-27
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] Ferromagnetic Ordering and Weak Spin-glass-like Effect in Pr_2CuSi_3 and Nd_2CuSi_32009

    • Author(s)
      李徳新、二森茂樹、山村朝雄、四竈樹男
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学黒髪キャンパス
    • Year and Date
      2009-09-27
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] 2Ba-15中性および陰イオン性ジアミド配位子とのウラン3価錯体の構造と物性2009

    • Author(s)
      山村朝雄、大田卓、李徳新、佐藤伊佐務、四竈樹男
    • Organizer
      第59回錯体化学討論会
    • Place of Presentation
      長崎大学文教キャンパス
    • Year and Date
      2009-09-26
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] 2Ba-14ウラン(V)β-ジケトン錯体における構造と磁性の研究2009

    • Author(s)
      大田卓, 山村朝雄, 白崎謙次, 李徳新, 佐藤伊佐務, 四竈樹男
    • Organizer
      第59回錯体化学討論会
    • Place of Presentation
      長崎大学文教キャンパス
    • Year and Date
      2009-09-26
    • Related Report
      2009 Annual Research Report
  • [Presentation] 5f電子系三角格子反強磁性体UNi_4Bの磁気秩序状態2009

    • Author(s)
      小山田明、西山昌秀、伊藤哲明、前川覚、李徳新、芳賀芳範
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-30
    • Related Report
      2010 Final Research Report 2008 Annual Research Report
  • [Presentation] ウラン(V)b-ジケトン錯体における構造と磁性の研究2008

    • Author(s)
      大田卓、山村朝雄、白崎謙次、李徳新、塩川佳伸、佐藤伊佐務
    • Organizer
      第58回錯体化学討論会
    • Place of Presentation
      金沢大学
    • Year and Date
      2008-09-20
    • Related Report
      2010 Final Research Report
  • [Presentation] Spin Dynamics in a Triangular Antiferromagnet UNi_4B2008

    • Author(s)
      A. Oyamada, M. Kondo, T. Itou, S. Maegawa, D. X. Li, Y. Haga
    • Organizer
      Highly Frustrated Magnetism 2008
    • Place of Presentation
      Braunschweig, Germany
    • Year and Date
      2008-09-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] Crystal Structure, Magnetic and Electrochemistry of Diamide Complexes of Europium(II)2008

    • Author(s)
      T. Yamamura, K. Shirasaki, S. Ohta, D. X. Li, Y. Homma, I. Satoh
    • Organizer
      25^<th> Rare Earth Research Conference
    • Place of Presentation
      The University of Alabama, Tuscaloosa, Alabama, USA
    • Year and Date
      2008-06-24
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2020-05-15  

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