High-Pressure and -Temperature Synthesis and its XPS Study of La_<1-x>Na_xTiO_3

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Perovskite oxides of La<SUB>1-x</SUB>Na<SUB>x</SUB>TiO<SUB>3</SUB> (x=0. 05, 0. 1-0. 5) were synthesized under high-pressure and -temperature. XRD analysis showed that sample is cubic for x=0. 05 and pseudo-cubic for 0. 1≤x≤0. 5. Cell volumes of samples with 0. 1≤x≤0. 5 decrease as x increase, and the cell volume for x=0. 05 is less than that for x=0. 1. This implies that the deficiency of cation may exist in the samples. XPS and EPR measurements indicated that Ti ions were mixed valence of +3 and +4 and vacancy of A-site ions existed in samples. The valence state of Ti ions can be altered by high-pressure and -temperature.

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, 1031-1033, 1998

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10002692672
  • 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
    4494137
  • 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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