焼結ダイヤモンドアンビルを組み込んだ川井型高圧装置による圧力発生 High Pressure Generation in a Kawai-Type Apparatus Equipped with Sintered Diamond Anvils

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  In this decade, attainable pressure range in a Kawai-type high-pressure apparatus equipped with sintered diamond as second stage anvil is significantly increased and we generated pressure to 97.2 GPa measured by <i>in situ</i> X-ray observation at SPring-8. By using this technique, we measured compressibility of (Fe<sub>0.08</sub>Mg<sub>0.92</sub>)SiO<sub>3</sub> perovskite up to more than 90 GPa. The bulk modulus and its pressure derivative are determined to be 268 GPa and 3.8, respectively. These values are slightly different from previous results. However, we obtained consistent results with previous study of bulk modulus of 257 GPa and pressure derivative of 4.3 when we fitted the data in the pressure range less than 70 GPa. The change of compressibility may indicate the spin transition in Fe-bearing perovskite around 70 GPa as suggested by previous study, for example, electrical conductivity measurement, X-ray emission method and so on.<br>

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 21(4), 272-277, 2011-11-20

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10030275046
  • NII書誌ID(NCID)
    AN10452913
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    0917639X
  • NDL 記事登録ID
    023492500
  • NDL 請求記号
    Z17-1589
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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