Pressure Dependence of the Valence Phase Transition in YbInCu_4

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The valence phase transition of YbInCu<SUB>4</SUB> has been investigated by neutron diffraction and high pressure experiments. Rietveld refinement of the crystal structure has showed that the transition occurs with no change in crystal symmetry in a temperature range of about 35-50 K. The transition temperature T<SUB>v</SUB> decreases linearly at a rate of -17 K/GPa with increasing the pressure up to 1 GPa, above which it decreases much faster up to 1. 75GPa. By using the bulk modules of YbInCu<SUB>4</SUB>, a Grüneisen type parameter of η=dln (T<SUB>v</SUB>) /dln (V (p) ), which represents the dependence of T<SUB>v</SUB> on the volume V (p) is estimated as -64. This value of η is discussed in a relation to the Kondo volume collapse model for the α-γ transition of Ce metal.

収録刊行物

  • 高圧力の科学と技術 = The Review of high pressure science and technology

    高圧力の科学と技術 = The Review of high pressure science and technology 7, 635-637, 1998

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10002691256
  • NII書誌ID(NCID)
    AN10452913
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    0917639X
  • NDL 記事登録ID
    4494006
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z17-1589
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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