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The phase transition of nanoparticles which have hierarchic structures

Research Project

Project/Area Number 17K04980
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nanostructural physics
Research InstitutionUniversity of Toyama

Principal Investigator

Ikemoto Hiroyuki  富山大学, 学術研究部理学系, 教授 (20262496)

Co-Investigator(Kenkyū-buntansha) 宮永 崇史  弘前大学, 理工学研究科, 教授 (70209922)
小田 竜樹  金沢大学, 数物科学系, 教授 (30272941)
畑田 圭介  富山大学, 学術研究部理学系, 准教授 (00813700)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords階層性 / 基本構造間相互作用 / X線吸収微細構造 / 斜入射小角X線散乱 / 機械学習 / ナノ粒子 / 深層学習 / 局所構造 / 相転移
Outline of Final Research Achievements

In the X-ray absorption fine structure analysis of Bi nanoparticles, the A17 structure was used as a reasonable model. In the case of Bi nanoparticles, the interlayer interaction collapses and the Bi nanoparticles become isolated chair-shaped Bi sheets. The model determination by deep learning was effective in GISAXS analysis.
In order to clarify the characteristics of hierarchical elements, the local structure of the 3-helix chain, which is the basic structure of Te, was investigated. The relationship between the inter-chain interaction and the covalent bond length and Einstein temperature was investigated, and it was found that the inter-chain interaction weakens the covalent bond.

Academic Significance and Societal Importance of the Research Achievements

共有結合でできた層状・鎖状構造を基本構造とし、基本構造間の相互作用により2次構造を形成する階層性元素では、基本構造が積み重なって2次構造ができるだけでなく、2次構造が基本構造に影響することを明らかにした。
EXAFSデータを解析するためのプログラムとしてmiXAFSコードを開発し公開した。これは、複数の構成元素の同時解析、構造パラメータ間の相関表示、迅速な解析など、この分野での解析に有用である。一方、GISAXS解析で重要なモデル推定に、機械学習が効果的であることも示した。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (23 results)

All 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (6 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 6 results) Presentation (14 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Int'l Joint Research] Institute for Plasma Research(インド)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Institute for Plasma Research(インド)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Institute for Plasma Research(インド)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Theory of polarization-averaged core-level molecular-frame photoelectron angular distributions: I. A full-potential method and its application to dissociating carbon monoxide dication2021

    • Author(s)
      Ota F、Yamazaki K、S?billeau D、Ueda K、Hatada K
    • Journal Title

      Journal of Physics B: Atomic, Molecular and Optical Physics

      Volume: 54 Issue: 2 Pages: 024003-024003

    • DOI

      10.1088/1361-6455/abd06d

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Theory of polarization-averaged core-level molecular-frame photoelectron angular distributions: II. Extracting the x-ray-induced fragmentation dynamics of carbon monoxide dication from forward and backward intensities2021

    • Author(s)
      F Ota, K Yamazaki, D Sebilleau, K Ueda and K Hatada
    • Journal Title

      Journal of Physics B: Atomic, Molecular and Optical Physics

      Volume: 54 Pages: 084001-084001

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Classification of grazing-incidence small-angle X-ray scattering patterns by convolutional neural network2020

    • Author(s)
      Ikemoto Hiroyuki、Yamamoto Kazushi、Touyama Hideaki、Yamashita Daisuke、Nakamura Masataka、Okuda Hiroshi
    • Journal Title

      Journal of Synchrotron Radiation

      Volume: 27 Issue: 4 Pages: 1069-1073

    • DOI

      10.1107/s1600577520005767

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of Te nanoparticles synthesized by plasma processing2020

    • Author(s)
      Iesari Fabio、Hatada Keisuke、Patel Jigar、Balasubramanian Chidambara、Miyanaga Takafumi、Ikemoto Hiroyuki
    • Journal Title

      Radiation Physics and Chemistry

      Volume: 175 Pages: 108334-108334

    • DOI

      10.1016/j.radphyschem.2019.05.024

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] miXAFS : a program for X-ray absorption fine-structure data analysis2018

    • Author(s)
      H. Ikemoto
    • Journal Title

      J. Synchrotron Rad.

      Volume: 25 Issue: 2 Pages: 618-624

    • DOI

      10.1107/s1600577518001765

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nearest-neighbour Distribution of Distances in Crystals from Extended X-ray Absorption Fine Structure2017

    • Author(s)
      P. Fornasini, R. Grisenti, M. Dapiaggi, G. Agostini, and T. Miyanaga
    • Journal Title

      J. Chem. Phys.

      Volume: 147 Issue: 4 Pages: 044503-044503

    • DOI

      10.1063/1.4995435

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 深層学習を用いた GISXS 実験データの分類分け2019

    • Author(s)
      山下 大輔, 山本 和司, 唐山 英明, 池本 弘之
    • Organizer
      日本物理学会北陸支部
    • Related Report
      2019 Research-status Report
  • [Presentation] カーボンナノチューブに包摂されたTe 鎖の構造2019

    • Author(s)
      加藤彰悟 池本弘之 宮永崇史
    • Organizer
      日本物理学会北陸支部
    • Related Report
      2019 Research-status Report
  • [Presentation] カーボンナノチューブに包摂された Te 鎖の構造2019

    • Author(s)
      加藤彰悟 、池本弘之 、宮永崇史
    • Organizer
      PF研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] カーボンナノチューブ内に包摂されたカルコゲン元素の構造2019

    • Author(s)
      池本弘之、宮永崇史、加藤彰悟、畑田圭介
    • Organizer
      PF研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] Si基板上のTeナノ粒子のGISAXS解析2019

    • Author(s)
      中村将崇、池本弘之、南村亜登夢、奥田浩司
    • Organizer
      量子ビームサイエンスフェスタ
    • Related Report
      2018 Research-status Report
  • [Presentation] 理論計算によるXANESシミュレーションの基礎と応用2019

    • Author(s)
      畑田圭介
    • Organizer
      日本化学会第99回春季年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Phase transition of bismuth nanoparticles2018

    • Author(s)
      H. Ikemoto, H. Maekawa, H. Isono, and T. Miyanaga
    • Organizer
      17th International Conference on X-ray Absorption Fine Structure
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Characterization of Te nanoparticles synthesized by plasma processing2018

    • Author(s)
      Fabio Iesaria, Keisuke Hatadaa, Jigar Patelb, Chidambara Balasubramanianb, Takafumi Miyanagac, Hiroyuki Ikemoto
    • Organizer
      17th International Conference on X-ray Absorption Fine Structure
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] FPMSプログラムの近年の発展2018

    • Author(s)
      畑田圭介
    • Organizer
      第21回XAFS討論会
    • Related Report
      2018 Research-status Report
  • [Presentation] Recent developments on ES2MS package2018

    • Author(s)
      Keisuke Hatada, Fukiko Ota, Naoki Komiya, Kaori Niki, Naoki Nakatani, Alberto Marmodolo,Jan Minar, Hubert Ebert, Calogero R. Natoli, and Didier Sebilleau
    • Organizer
      17th International Conference on X-ray Absorption Fine Structure
    • Related Report
      2018 Research-status Report
  • [Presentation] Biナノ粒子におけるBiシートの構造2018

    • Author(s)
      磯野颯人、前川仁志、池本弘之、宮永崇史
    • Organizer
      量子ビームサイエンスフェスタ
    • Related Report
      2017 Research-status Report
  • [Presentation] Si基板上のTeナノ粒子のGISAXS解析2018

    • Author(s)
      中村将崇、南村亜登夢、池本弘之
    • Organizer
      量子ビームサイエンスフェスタ
    • Related Report
      2017 Research-status Report
  • [Presentation] Influence of van der Waals and magnetic interaction on solid oxygen2017

    • Author(s)
      Masao Obata, Ikutaro Hamada, Takao Kotani, Tatsuki Oda
    • Organizer
      12th International Symposium on Crystalline Organic Metals, Superconductors and Magnets (ISCOM2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] X線吸収微細構造によるナノ粒子系の解析2017

    • Author(s)
      宮永崇史
    • Organizer
      みちのく分析科学シンポジウム2017
    • Related Report
      2017 Research-status Report
    • Invited

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Published: 2017-04-28   Modified: 2022-01-27  

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