Pressure Induced Structural Phase Transition of CdI_2-type PbI_2

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X-ray in-situ observation of PbI<SUB>2</SUB> under high pressure and temperature up to 13 GPa and 600°C was conducted by means of MAX 90 system and synchrotron radiation. Two high pressure phases were newly found to appear at 10 GPa, 200°C (phase VII) and at 13 GPa, 600°C (phase VIII) respectively. The phase relation under pressure was drawn by combining the present data and those reported. In the course of releasing pressure, phase VIII was retained down nearly to 1 GPa and reverted directly to the ambient pressure phase on the complete release of pressure, while phase VII transformed to a metastable phase at 3 GPa. Obtained diffraction patterns of phase VII and VIII were indexed on the basis of monoclinic symmetry. Baddeleyite type structure is proposed for phase VII.

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, 341-343, 1998 

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10002690053
  • 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
    4493924
  • 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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