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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 18F16796
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) 2018-04-25 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2018: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywords放射光物性 / 異常効果 / 非晶質 / 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、優れた相変化型データ保存デバイスの基礎物性、特に局所部分原子構造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Cu-Ge-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3次元的に導出する。光反射率や密度変化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Cu-Ge-Te混合系の中距離原子構造と物性の深い関係を、Cu-Ge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。
Cu-Ge-Te混合系薄膜試料は、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、AXS測定はSPring-8およびESRFにおいてCu、GeおよびTe K吸収端付近で行った。得られた差構造因子から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、結晶には画一的に存在する6員環が、アモルファス相では大きく崩壊し、3員環が多く見られることが明らかになった。得られた結果はApplied Physics Letters誌に投稿した。また、中型放射光施設でもAXS実験を可能とする測定法の開発を行い、AXS実験を恒常的に行うことができるようになった。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Report

(1 results)
  • 2018 Annual Research Report
  • Research Products

    (35 results)

All 2019 2018 Other

All Int'l Joint Research (6 results) Journal Article (10 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 10 results,  Open Access: 6 results) Presentation (18 results) (of which Int'l Joint Research: 9 results,  Invited: 2 results) Remarks (1 results)

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

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] マールブルク大学(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] パルドゥビチェ大学(チェコ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ハンガリー科学院(ハンガリー)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ヤギェウォ大学(ポーランド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Application of x-ray fluorescence holography to the analysis of the interior and surface of an yttrium oxide thin film2019

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

      Surface and Interface Analysis

      Volume: 51 Issue: 1 Pages: 70-73

    • DOI

      10.1002/sia.6550

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Anomalous x-ray scattering experiments for disordered materials at the SAGA Light Source2019

    • Author(s)
      J. R. Stellhorn, S. Hosokawa, and E. Magome
    • Journal Title

      AIP Conference Proceedings

      Volume: 2054 Pages: 050012-050012

    • DOI

      10.1063/1.5084630

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Atomic imaging of iron-based superconductor parent FeTe using x-ray fluorescence holography2018

    • Author(s)
      B. Paulus, S. Hosokawa, J. R. Stellhorn, B. Klee, K. M. Sowa, K. Kudo, N. Nishimoto, H. Ota, M. Nohara, M. de Boissieu, N. Blanc, N. Boudet, and W.-C. Pilgrim
    • Journal Title

      Physica Status Solidi B

      Volume: 255 Issue: 11 Pages: 1800200-1800200

    • DOI

      10.1002/pssb.201800200

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Local structure of FeSe0.4Te0.6 by low‐temperature x‐ray fluorescence holography2018

    • Author(s)
      J. R. Stellhorn, Y. Ideguchi, K. Kimura, K. Hayashi, N. Happo, M. Suzuki, H. Okazaki, A. Yamashita, Y. Takano, and S. Hosokawa
    • Journal Title

      Physica Stutus Solidi B

      Volume: 255 Issue: 11 Pages: 1800093-1800093

    • DOI

      10.1002/pssb.201800093

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The seeds of Zn6Y8 L12-type clusters in amorphous Mg85Zn6Y9 alloy investigated by photoemission spectroscopy2018

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, B. Paulus, K. Maruyama, K. Kobayashi, H. Okuda, M. Yamasaki, Y. Kawamura, and H. Sato
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 764 Pages: 431-436

    • DOI

      10.1016/j.jallcom.2018.06.012

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Applications of a L1-regularized linear regression to x-ray fluorescence holography data of functional materials2018

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, K. Hayashi, and T. Matsushita
    • Journal Title

      Physica Status Solidi B

      Volume: 255 Issue: 11 Pages: 431-436

    • DOI

      10.1002/pssb.201800089

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Seeds of L12 clusters in amorphous Mg85Zn6Y9 alloy observed via anomalous x-ray scattering2018

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, B. D. Klee, W.-C. Pilgrim, H. Okuda, M. Yamasaki, Y. Kawamura, N. Blanc, and N. Boudet
    • Journal Title

      Applied Physics Express

      Volume: 11 Issue: 7 Pages: 071402-071402

    • DOI

      10.7567/apex.11.071402

    • NAID

      210000136268

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Electronic structures and impurity cluster features in Mg-Zn-Y alloys with a synchronized long-period stacking ordered phase2018

    • Author(s)
      S. Hosokawa, K. Maruyama, K. Kobayashi, J. R. Stellhorn, B. Paulus, A. Koura, F. Shimojo, T. Tsumuraya, M. Yamasaki, Y. Kawamura, S. Yoshioka, and H. Sato
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 762 Pages: 797-805

    • DOI

      10.1016/j.jallcom.2018.05.163

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Structure determination of a new molecular white-light source2018

    • Author(s)
      B. D. Klee, E. Dornsiepen, J. R. Stellhorn, B. Paulus, S. Hosokawa, S. Dehnen, and W.-C. Pilgrim
    • Journal Title

      Physica Status Solidi B

      Volume: 255 Issue: 11 Pages: 1800083-1800083

    • DOI

      10.1002/pssb.201800083

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Temperature dependent local atomic structures in the traditional Fe65Ni35 Invar alloy by x-ray fluorescence holography2018

    • Author(s)
      J. R. Stellhorn, Y. Ideguchi, S. Hosokawa, N. Happo, T. Matsushita, K. Yubuta, M. Suzuki, H. Ishii, Y.-F. Liao, K. Kimura, and K. Hayashi
    • Journal Title

      Surface and Interface Analysis

      Volume: 50 Issue: 8 Pages: 790-794

    • DOI

      10.1002/sia.6474

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] YbInCu4価数揺動物質の価数選択的3次元局所構造2019

    • Author(s)
      細川伸也、八方直久、林好一、木村耕治、Jens R. Stellhorn、佐藤仁、平岡耕一
    • Organizer
      日本物理学会第74回年次大会(2019年3月14-17日、九州大学伊都キャンパス)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 蛍光X線ホログラフィーによるYbInCu4価数揺動物質の価数選択的3次元局所構造の研究2019

    • Author(s)
      細川伸也、八方直久、林好一、木村耕治、松下智裕、Jens R. Stellhorn、佐藤仁、平岡耕一
    • Organizer
      新学術領域「3D活性サイト科学」第9回成果発表会(3月2-3日、奈良先端科学技術大学院大学)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 蛍光X線ホログラフィーによるYbInCu4価数揺動物質の価数選択性局所原子配列の研究2019

    • Author(s)
      細川伸也、Jens R. Stellhorn、佐藤仁、八方直久、木村耕治、林好一、松下智裕、水牧仁一朗、鈴木基寛、平岡耕一
    • Organizer
      第32回放射光学会年会・放射光科学合同シンポジウム (1月9-11日、福岡国際会議場)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 原子形状因子の異常を用いた蛍光X線ホログラフィーによるMnを添加したBi2Te3トポロジカル物質の近接元素種の同定2019

    • Author(s)
      細川伸也、Jens R. Stellhorn、八方直久、木村耕治、林好一、松下智裕、石井啓文
    • Organizer
      第32回放射光学会年会・放射光科学合同シンポジウム (1月9-11日、福岡国際会議場)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Atomic and electronic structures of amorphous Mg85Zn6Y9 alloy: Searching for the seeds of Zn6Y8 L12 clusters2018

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, K. Maruyama, K. Kobayashi, H. Sato, H. Okuda, M. Yamasaki, and Y. Kawamura
    • Organizer
      The 4th International Symposium on Long-Period Stacking Ordered Structure and Millefeuille Structure (3-5 December 2018, Kumamoto)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A model for the fast phase-change mechanism in Cu2GeTe32018

    • Author(s)
      J. R. Stellhorn, S. Hosokawa, Y. Sutou
    • Organizer
      International Symposium on Advanced Materials Having Multi-Degrees-of-Freedom (1-2 November 2018, Kumamoto)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Temperature dependent local atomic structures in the traditional Fe65Ni35 Invar alloy by x-ray fluorescence holography2018

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, N. Happo, K. Hayashi, T. Matsushita, and K. Yubuta
    • Organizer
      International Symposium on Advanced Materials Having Multi-Degrees-of-Freedom (1-2 November 2018, Kumamoto)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Local and intermediate‐range atomic orders in a Ga‐Ge‐Se glass by anomalous x‐ray scattering2018

    • Author(s)
      J. R. Stellhorn, S. Hosokawa, M. Krbal, T. Wagner, and E. Magome
    • Organizer
      13th International Conference on Solid State Chemistry (16-21 September 2018, Pardibice)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Elemental identification of neighboring atoms by x-ray fluorescence holography using an anomalous atomic form factor2018

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, T. Matsushita, K. Kimura, K. Hayash, N. Happo, and H. Ishii
    • Organizer
      The 14th Biennial Conference on High-Resolution X-Ray Diffraction and Imaging (3-7 September 2018, Bari)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Local- and intermediate-range structures of room-temperature superionic Ag-GeSe3 glasses2018

    • Author(s)
      J. R. Stellhorn, S. Hosokawa, W.-C. Pilgrim, K. Hayashi, N. Boudet, N. Blanc, and Y. Kawakita
    • Organizer
      15th International Conference on the Physics of Non-Crystalline Solids & 14th European Society of Glass Conference (9-13 July 2018, St. Malo)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phonon excitations in an anisotropic metaphosphate glass2018

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, S. Inaba, H. Uchiyama, and S. Tsutsui
    • Organizer
      15th International Conference on the Physics of Non-Crystalline Solids & 14th European Society of Glass Conference (9-13 July 2018, St. Malo)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A structural study of a rejuvenation effect in amorphous Gd-Co metal by anomalous x-ray scattering2018

    • Author(s)
      S. Hosokawa, J. R. Stellhorn, Y. Yamazaki, H. Kato, N. Blanc, and N. Boudet
    • Organizer
      The 25th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM2018) (2-6 July 2018, Rome)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous X-ray Scattering Experiments for Disordered Materials at the SAGA Light Source2018

    • Author(s)
      J. R. Stellhorn, S. Hosokawa, and E Magome
    • Organizer
      The 13th International Conference on Synchrotron Radiation Instrumentation (10-15 June 2018, Taipei)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 蛍光X線ホログラフィーを用いたトポロジカル絶縁体Bi2Te3にドープされたMnの局所構造解析2018

    • Author(s)
      細川伸也、Jens R. Stellhorn、松下智裕、八方直久、林好一
    • Organizer
      第12回物性科学領域横断研究会(11月30日-12月1日、奈良先端科学技術大学院大学)
    • Related Report
      2018 Annual Research Report
  • [Presentation] アモルファスGd-Co合金の若返り効果の構造的研究2018

    • Author(s)
      細川伸也, Jens R. Stellhorn, 山崎由勝, 加藤秀実, Nils Blanc, Nathalie Boudet
    • Organizer
      日本物理学会2018年秋季大会 (2018年9月9-12日、同志社大学京田辺キャンパス)
    • Related Report
      2018 Annual Research Report
  • [Presentation] X線異常散乱によるGa-Ge-Seガラスの局所、中距離原子構造2018

    • Author(s)
      J. R. Stellhorn, 細川伸也, M. Krbal, T. Wagner, 馬込栄輔
    • Organizer
      日本物理学会2018年秋季大会 (2018年9月9-12日、同志社大学京田辺キャンパス)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 蛍光X線ホログラフィーによるD相Al75Ni10Co15準結晶の原子配列と位置ゆらぎ2018

    • Author(s)
      細川伸也, Jens R. Stellhorn, 木村耕治, 林好一, Marc de Boissieu, Nils Blanc, Nathalie Boudet
    • Organizer
      日本物理学会2018年秋季大会 (2018年9月9-12日、同志社大学京田辺キャンパス)
    • Related Report
      2018 Annual Research Report
  • [Presentation] X線異常散乱法による機能性カルコゲンガラスの局所構造の解明2018

    • Author(s)
      細川伸也、Jens R. Stellhorn、馬込栄輔
    • Organizer
      第12回九州シンクロトロン光研究センター研究成果報告会(2018年8月1日、佐賀市ホテル・グランデはがくれ)
    • Related Report
      2018 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
      2018 Annual Research Report

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Published: 2018-05-01   Modified: 2024-03-26  

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