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Spectroscopic study of pressure induced metallization of aluminum trihydride

Research Project

Project/Area Number 23540365
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics I
Research InstitutionGifu University

Principal Investigator

KUME Tetsuji  岐阜大学, 工学部, 准教授 (30293541)

Co-Investigator(Kenkyū-buntansha) SASAKI Shigeo  岐阜大学, 工学部, 教授 (30196159)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords光物性 / 高圧物性 / 金属水素化物 / 高圧極限 / 分光測定 / 金属化転移 / 構造相転移
Research Abstract

We successfully measured the optical absorption spectra of AlH3 under high pressures up to 130 GPa, by means of a diamond anvil cell. At 65 GPa, the sample became opaque, and the absorption spectral feature was consistent with the indirect interband transition. When the pressure was elevated further, the color of the sample did not change. However, the monotonic increase in absorption was found in the infrard energy region above 106 GPa. This increase was interpreted in terms of a plasma absorption of free electrons, by a theoretical simulation. Thus, this is the first report on optical response on the pressure induced metallization of AlH3.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (13 results)

All 2014 2013 2012 2011

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (10 results) (of which Invited: 1 results)

  • [Journal Article] High pressure study of ScH3 : Raman, IR and visible absorption spectroscopies2011

    • Author(s)
      T.Kume, H.Ohura, T.Takeichi, A. Ohmura, A. Machida, T. Watanuki, K. Aoki, S. Sasaki, H. Shimizu, K.Takemura
    • Journal Title

      Phys. Rev. B

      Volume: 84

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] 高圧力下における希土類水素化物のラマン散乱および可視紫外吸収分光2011

    • Author(s)
      久米徹二, 町田晃彦, 青木勝敏, 佐々木重雄, 清水宏晏
    • Journal Title

      高圧力の科学と技術

      Volume: 21 Pages: 184-189

    • NAID

      10029831617

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] High pressure study of ScH3: Raman, IR and visible absorption spectroscopies2011

    • Author(s)
      T.Kume, H.Ohura, T.Takeichi, A. Ohmura, A. Machida, T. Watanuki, K. Aoki, S. Sasaki, H. Shimizu, K.Takemura
    • Journal Title

      Phys. Rev. B

      Volume: 84 Issue: 6

    • DOI

      10.1103/physrevb.84.064132

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] ラマン散乱分光を用いた高圧物性研究2014

    • Author(s)
      久米徹二
    • Organizer
      第39回未来を拓く高圧力科学技術セミナーシリーズ「高圧力と分光技術」
    • Place of Presentation
      日本大学文理学部世田谷キャンパス
    • Year and Date
      2014-03-26
    • Related Report
      2013 Final Research Report
  • [Presentation] ラマン散乱分光を用いた高圧物性研究2014

    • Author(s)
      久米徹二
    • Organizer
      第39回未来を拓く高圧力科学技術セミナーシリーズ「高圧力と分光測定技術」
    • Place of Presentation
      日本大学文理学部世田谷キャンパス(東京)
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] AlH3の高圧力下における光吸収に関する研究2013

    • Author(s)
      中村悠輔, 百瀬孝一, 久米徹二, 佐々木重雄, 松岡岳洋, 大村彩子, 中野智志, 折茂慎一
    • Organizer
      第54回高圧討論会
    • Place of Presentation
      朱鷺メッセ
    • Related Report
      2013 Final Research Report
  • [Presentation] AlH3の高圧力下における光吸収に関する研究2013

    • Author(s)
      中村悠輔,百瀬孝一,久米徹二,佐々木重雄,松岡岳洋,大村彩子,中野智志,折茂慎一
    • Organizer
      第54回高圧討論会
    • Place of Presentation
      朱鷺メッセ(新潟)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 低温・高圧力下におけるダイヤモンド・アンビル・セルの圧力制御2012

    • Author(s)
      中村悠輔, 船橋健太, 久米徹二, 佐々木重雄
    • Organizer
      第53回高圧討論会
    • Place of Presentation
      大阪大学
    • Related Report
      2013 Final Research Report
  • [Presentation] 低温・高圧力下におけるダイヤモンド・アンビル・セルの圧力制御2012

    • Author(s)
      中村悠輔、船橋健太、久米徹二、佐々木重雄
    • Organizer
      第53回高圧討論会
    • Place of Presentation
      大坂大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 立方晶系希土類三水素化物の高圧ラマン散乱及び紫外可視吸収分光2011

    • Author(s)
      中本琢磨, 志村直哉, 熊崎洋平, 久米徹二, 佐々木重雄, 清水宏晏, 青木勝敏, 綿貫徹, 町田晃彦
    • Organizer
      第52回高圧討論会
    • Place of Presentation
      沖縄キリスト教学院
    • Year and Date
      2011-11-09
    • Related Report
      2013 Final Research Report
  • [Presentation] High Pressure Raman and Visible Absorption Study on Rare-Earth Trihydrides with FCC Structure2011

    • Author(s)
      T. Kume, T. Nakamoto, N. Shimura, S. Sasaki, H. Shimizu, A. Machida, T. Watanuki, K. Aoki, K. Takemura
    • Organizer
      AIRAPT-23; International Conference on High Pressure, Science and Technology
    • Place of Presentation
      Mumbai, India
    • Year and Date
      2011-09-30
    • Related Report
      2013 Final Research Report
  • [Presentation] High Pressure Raman and Visible Absorption Study on Rare-Earth Trihydrides with FCC Structure2011

    • Author(s)
      T. Kume, T. Nakamoto, N. Shimura, S. Sasaki, H. Shimizu, A. Machida, T. Watanuki, K. Aoki, K. Takemura
    • Organizer
      AIRAPT-23; International Conference on High Pressure Science and Technology
    • Place of Presentation
      Mumbai, India
    • Related Report
      2011 Research-status Report
  • [Presentation] 立方晶系希土類三水素化物の高圧ラマン散乱及び紫外可視吸収分光2011

    • Author(s)
      中本琢磨,志村直哉,熊崎洋平,久米徹二,佐々木重雄,清水宏晏,青木勝敏,綿貫徹,町田晃彦
    • Organizer
      第52回高圧討論会
    • Place of Presentation
      沖縄キリスト教学院,那覇
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2020-05-15  

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