Pressure Effect on Metal-Insulator Transition in Y_<1-x>Ca_xTiO_3

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The magnetic susceptibility and electrical resistivity in the metal-insulator (MI) transition of a mixed-valent Ti-oxide system, Y<SUB>1-x</SUB> Ca<SUB>x</SUB>RTiO<SUB>3</SUB>, is investigated as a function of pressure. This system exhibits obviously the temperatureinduced MI transition at x=0. 3-0. 4. At the low temperature metallic phase, susceptibility, X (T), is strongly suppressed with pressure. On the other hand, in the high temperature semiconductiong phase X (T) obeying the Curie-Weiss law is not affected strongly with pressure. The coefficient of the T<SUP>2</SUP>-term in resistivity, A, and the residual resistivity, ρ (0), are decreases rapidly with pressure. At x=0. 375 and 0. 39, we recognize the relation of A∝X (10 K) <SUP>2</SUP> at the low temperature metallic state.

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, 608-610, 1998

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10002691167
  • 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
    4493997
  • 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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