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エキゾティックな相変化材料の非結晶構造と物性

Research Project

Project/Area Number 16F16796
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Condensed matter physics I
Research InstitutionKumamoto University

Principal Investigator

細川 伸也  熊本大学, 大学院先端科学研究部(理), 教授 (30183601)

Co-Investigator(Kenkyū-buntansha) STELLHORN JENS  熊本大学, 大学院先端科学研究部(理), 外国人特別研究員
Project Period (FY) 2016-11-07 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2017: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 2016: ¥800,000 (Direct Cost: ¥800,000)
Keywords放射光物性 / 異常効果 / 非結晶原子構造 / データ駆動科学
Outline of Annual Research Achievements

申請者の研究プロジェクトは、優れたデータ保存デバイスの基礎物性を探求することを目的としている。レーザー励起による結晶ー非結晶相転移によって情報を記録する光学メディアDVDについて、新しい材料として期待されているGe-Cu-Te混合系半導体の相変化メカニズムを解明するために、放射光X線を用いたX線異常散乱(AXS)法によって非結晶状態(アモルファス相)の原子配列を、アモルファス相の構造を正確な3次元原子配列として導出する。特にGe原子が、DVDとしての速い相変化と長い記録保持性に大きく関わっていることがこれまでのGe-Sb-Te混合系における測定によりわかりつつあるので、光反射率の逆転などエキゾティックな物性と高温で高い安定性を示すなど実用面でも優れているGe-Cu-Te混合系の中距離原子構造と物性の深い関係を、Ge-Cu組成比をいくつか変化させたデータから明白にすることを試みた。

Ge-Cu-Te混合系薄膜を、ドイツ・ダルムシュタット工科大学においてスパッター法 によって作製した。試料はSPring-8においてGe、CuおよびTeそれぞれの元素のまわりの差構造因子を求めるAXS実験を行い、統計性の優れた結果を得た。差構造因子は元素によって異なった形状を持つ。得られた結果は、逆モンテカルロ法を用いて、原子配列を3次元的に導出した。特にGeのまわりの中距離構造に着目し、その配列からその電子状態との関係を導き出した。得られた結果はPhysical Review Lettersに投稿準備をしている。また、AXS法の測定手段の大幅な改善については、6月に台北で行われる第13回放射光装置に関する国際会議で報告する予定である。

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (37 results)

All 2018 2017 2016 Other

All Int'l Joint Research (8 results) Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (22 results) (of which Int'l Joint Research: 12 results,  Invited: 3 results) Remarks (2 results)

  • [Int'l Joint Research] CNRS/SIMaP(フランス)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] マールブルク大学(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] パルドゥビチェ大学(チェコ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] ハンガリー科学院(ハンガリー)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] ヤギェウォ大学(ポーランド)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] マールブルク大学(ドイツ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] パルドゥビチェ大学(チェコ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] CNRSグルノーブル(フランス)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Lattice Distortions in TlInSe2 Thermoelectric Material Studied by X-Ray Absorption Fine Structure2018

    • Author(s)
      Shinya Hosokawa, Jens Rudiger Stellhorn, Hiroyuki Ikemoto, Kojiro Mimura, Kazuki Wakita, and Nazim Mamedov
    • Journal Title

      Phys. Status Solidi A

      Volume: 215 Issue: 1 Pages: 1700416-1700416

    • DOI

      10.1002/pssa.201700416

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Distinguishing the local environments of Ga and Ge in amorphous (Ga2Se3)0.25(GeSe2)0.75 by anomalous X-ray scattering2018

    • Author(s)
      B. D. Klee, J. R. Stellhorn, M. Krbal, N. Boudet, G. Chahine, N. Blanc, W.-C. Pilgrim, T. Wagner, and S. Hosokawa
    • Journal Title

      Chalcogenide Letters

      Volume: 15 Pages: 1-6

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impurity position and lattice distortion in a Mn-doped Bi2Te3 topological insulator investigated by x-ray fluorescence holography and x-ray absorption fine structure2017

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, T. Matsushita, N. Happo, K. Kimura, K. Hayashi, Y. Ebisu, T. Ozaki, H. Ikemoto, H. Setoyama, T. Okajima, Y. Yoda, H. Ishii, Y.-F. Liao, M. Kitaura, and M. Sasaki
    • Journal Title

      Physical Review B

      Volume: 96 Issue: 21 Pages: 214207-214207

    • DOI

      10.1103/physrevb.96.214207

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film2017

    • Author(s)
      Stellhorn J. R.、Hosokawa S.、Happo N.、Tajiri H.、Matsushita T.、Kaminaga K.、Fukumura T.、Hasegawa T.、Hayashi K.
    • Journal Title

      Journal of Applied Crystallography

      Volume: 50 Issue: 6 Pages: 1583-1589

    • DOI

      10.1107/s1600576717012821

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] ランダム系の部分原子構造研究に用いるX線異常散乱法の進展2017

    • Author(s)
      細川伸也、Jens Ruediger Stellhorn
    • Journal Title

      日本セラミックス協会誌「セラミックス」

      Volume: 52 Pages: 341-344

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed
  • [Presentation] Atomic configurations and positional fluctuations in decagonal phase Al75Ni10Co15 quasicrystal by x-ray fluorescence holography2018

    • Author(s)
      J. Stellhorn, S. Hosokawa, K. Kimura, K. Hayashi, M. de Boissieu, A. P. Tsai, N. Blanc, N. Boudet
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム(2018年1月8-10日、つくば国際会議場)
    • Related Report
      2017 Annual Research Report
  • [Presentation] X線非弾性散乱による単結晶Mg85Zn6Y9LPSO合金のフォノン励起の研究II2017

    • Author(s)
      細川伸也、木村耕治、Jens R. Stellhorn、吉田享次、萩原幸司、伊津野仁史、山崎倫昭、河村 能人、峯洋二、高島和希、内山裕士、筒井智嗣
    • Organizer
      日本金属学会2017年春期講演大会
    • Place of Presentation
      首都大学東京南大沢キャンパス
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 蛍光X線ホログラフィーによるFe65Ni35インバー合金のスピン状態選択局所構造の研究2017

    • Author(s)
      細川伸也、出口雄樹、Jens R. Stellhorn、八方直久、木村耕治、林好一、湯蓋邦夫
    • Organizer
      2016年度量子ビームサイエンスフェスタ
    • Place of Presentation
      つくば国際会議場
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] 蛍光X線ホログラフィーによるTaドープFe2VAl ホイスラー型熱電材料の局所構造解析2017

    • Author(s)
      木村耕治、林好一、山本健太、J. R. Stellhorn、戎佳宏、八方直久、 田尻寛男、尾崎徹、細川伸也、宮崎秀俊、西野洋一
    • Organizer
      2016年度量子ビームサイエンスフェスタ
    • Place of Presentation
      つくば国際会議場
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] 蛍光X線ホログラフィーによるFe2VAlホイスラー型熱電材料のドーパントまわり局所構造解析2017

    • Author(s)
      木村耕治、林好一、山本健太、Jens R. Stellhorn、戎佳宏、八方直久、田尻寛男、尾崎徹、細川伸也、宮崎秀俊、西野洋一
    • Organizer
      第30回日本放射光学会年会・放射光科学合同シンポジウム
    • Place of Presentation
      神戸芸術センター
    • Year and Date
      2017-01-07
    • Related Report
      2016 Annual Research Report
  • [Presentation] Intermediate-range order in amorphous GeSbTe studied by anomalous x-ray scattering2017

    • Author(s)
      J. R. Stellhorn、W.-C. Pilgrim、B. Kaiser、N. Boudet、N. Blanc、H. Tajiri、S. Kohara、K. Kimura、S. Hosokawa
    • Organizer
      第30回日本放射光学会年会・放射光科学合同シンポジウム
    • Place of Presentation
      神戸芸術センター
    • Year and Date
      2017-01-07
    • Related Report
      2016 Annual Research Report
  • [Presentation] A valence selective x-ray fluorescence holography study of YO2017

    • Author(s)
      J. R. Stellhorn、S. Hosokawa、K. Hayashi、N. Happo、H. Tajiri、T. Matsushita、K. Kaminaga、T. Fukumura、T. Hasegawa
    • Organizer
      第30回日本放射光学会年会・放射光科学合同シンポジウム
    • Place of Presentation
      神戸芸術センター
    • Year and Date
      2017-01-07
    • Related Report
      2016 Annual Research Report
  • [Presentation] 光触媒RhドープSrTiO3の活性サイトの局所構造評価2017

    • Author(s)
      林好一、木村耕治、八方直久、Jens Stellhorn、細川伸也、川崎聖治、M. Lippmaa、L. Kang、赤木和人、松井文彦、松下智裕
    • Organizer
      第30回日本放射光学会年会・放射光科学合同シンポジウム
    • Place of Presentation
      神戸芸術センター
    • Year and Date
      2017-01-07
    • Related Report
      2016 Annual Research Report
  • [Presentation] An x-ray fluorescence holographic study on a Fe-based high-temperature superconductor FeSe0.4Te0.62017

    • Author(s)
      J. R. Stellhorn, S. Hosokawa, N. Happo, K. Kimura, K. Hayashi, H. Okazaki, A. Yamashita, and Y. Takano
    • Organizer
      30th International Symposium on Superconductivity (13-14 December 2017, Tokyo)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A valence selective x-ray fluorescence holography study of an yttrium oxide thin film2017

    • Author(s)
      J. R. Stellhorn, S. Hosokawa, N. Happo, H. Tajiri, T. Matsushita, K. Kaminaga, T. Fukumura, T. Hasegawa, and K. Hayashi
    • Organizer
      11th International Symposium on Atomic Level Characterizations for New Materials and Devices ’17 (3-8 December 2017, Kauai)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Valence-selective x-ray fluorescence holography: an example of an yttrium oxide thin film2017

    • Author(s)
      J. R. Stellhorn
    • Organizer
      5th International Symposium on Kumamoto Synchrotron Radiation (ISKSR5): Progress of Data Analysis, Data-Driven Science, and Theory for Science (1-2 November 2017, Kumamoto)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Valence-selective x-ray fluorescence holography: an example of an Y2+/Y3+ thin film2017

    • Author(s)
      J. R. Stellhorn, S. Hosokawa, N. Happo, H. Tajiri, T. Matsushita, K. Kaminaga, T. Fukumura, T. Hasegawa, and K. Hayashi
    • Organizer
      Swedish-Japanese Workshop on Nano-Structure Science by Novel Light Sources (2-3 October 2017, Lund)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A combination of anomalous x-ray scattering and x-ray absorption fine structure experiments for the characterization of amorphous GeCu2Te32017

    • Author(s)
      J. R. Stellhorn, W.-C. Pilgrim, Y. Sutou, and S. Hosokawa
    • Organizer
      8th International Conference on Amorphous and Nanostructured Chalcogenides (2-5 July 2017, Sinaia)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A combination of anomalous x-ray scattering and x-ray absorption fine structure experiments with reverse Monte Carlo modeling for the characterization of amorphous GeCuTe2017

    • Author(s)
      J. R. Stellhorn
    • Organizer
      4th International Symposium on Kumamto Synchrotron Radiation: Cooperation of Experiments and Computer Sciences (15 May 2017, Kumamoto)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] X-ray fluorescence holographic study on high-temperature superconductor FeSe0.4Te0.62016

    • Author(s)
      Y. Ideguchi, J. R. Stellhorn, S. Hosokawa, N. Happo, K. Kimura, K. Hayashi, H. Okazaki, A. Yamashita, and Y. Takano
    • Organizer
      International Workshop on Superconductivity and Related Functional Materials 2016
    • Place of Presentation
      Tsukuba
    • Year and Date
      2016-12-20
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] スパースモデリングに基づいた蛍光X線ホログラフィー3次元原子イメージの精密化2016

    • Author(s)
      細川伸也、出口雄樹、Jens R. Stellhorn、赤井一郎
    • Organizer
      科学研究費補助金新学術領域研究「スパースモデリングの深化と高次元データ駆動科学の創成」2016年度公開シンポジウム
    • Place of Presentation
      慶應義塾大学三田キャンパス
    • Year and Date
      2016-12-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] Microscopic elastic properties of single crystal Mg85Zn6Y9 alloy with long-period stacking ordered phase by inelastic x-ray scattering2016

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, K. Kimura, K. Hayashi, K. Hagihara, H. Izuno, M. Yamasaki, Y. Kawamura, Y. Mine, K. Takashima, H. Uchiyama, and S. Tsutsui
    • Organizer
      3rd International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials
    • Place of Presentation
      Kyoto
    • Year and Date
      2016-12-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of the local structure in LPSO Mg75Zn10Y15 alloy from x-ray fluorescence holography2016

    • Author(s)
      T. Nishioka, K. Hayashi, K. Kimura, J. R. Stellhorn, N. Happo, K. Hagihara, H. Izuno, Y. Ebisu, Y. Ideguchi, M. Suzuki, T. Ozaki, and S. Hosokawa
    • Organizer
      3rd International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials
    • Place of Presentation
      Kyoto
    • Year and Date
      2016-12-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structure of amorphous GeSbTe modeled by reverse Monte Carlo2016

    • Author(s)
      J. R. Stellhorn, W.-C. Pilgrim, B. Kaiser, N. Boudet, N. Blanc, H. Tajiri, S. Kohara, and S. Hosokawa
    • Organizer
      3rd International Symposium on Kumamto Synchrotron Radiation: Data Analysis and Data-Driven Science
    • Place of Presentation
      Kumamoto
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spin state selective local structures in Fe65Ni35 Invar alloy by x-ray fluorescence holography2016

    • Author(s)
      Y. Ideguchi, S. Hosokawa, N. Happo, T. Matsushita, M. Suzuki, K. Yubuta, Y. Ebisu, T. Ozaki, H, Ishii, Y.-F. Liao, J. R. Stellhorn, K. Kimura, and K. Hayashi
    • Organizer
      3rd International Symposium on Kumamto Synchrotron Radiation: Data Analysis and Data-Driven Science
    • Place of Presentation
      Kumamoto
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] X-ray fluorescence holographic study on high-temperature superconductor FeSe0.4Te0.62016

    • Author(s)
      Y. Ideguchi, S. Hosokawa, N. Happo, K. Kimura, K. Hayashi, Y. Ebisu, T. Ozaki, J. R. Stellhorn, M. Suzuki, H. Okazaki, A. Yamashita, and Y. Takano
    • Organizer
      3rd International Symposium on Kumamto Synchrotron Radiation: Data Analysis and Data-Driven Science
    • Place of Presentation
      Kumamoto
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新学術領域「3D活性サイト科学」と医の連携2016

    • Author(s)
      中村照也、山縣ゆり子 、出口雄樹、Jens R. Stellhorn、細川伸也
    • Organizer
      第4回 熊本大学医工連携フォーラム-生命科学・自然科学分野の連携-
    • Place of Presentation
      熊本大学本庄地区
    • Related Report
      2016 Annual Research Report
  • [Remarks] 量子ビーム3D活性サイト科学研究室

    • URL

      http://crocus.sci.kumamoto-u.ac.jp/physics/SR/index.html

    • Related Report
      2017 Annual Research Report
  • [Remarks] 量子ビーム・3D活性サイト科学研究室

    • URL

      http://crocus.sci.kumamoto-u.ac.jp/physics/SR/index.html

    • Related Report
      2016 Annual Research Report

URL: 

Published: 2016-11-08   Modified: 2024-03-26  

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