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High spatial and high energy resolution electronic state mapping

Research Project

Project/Area Number 19H02597
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 29020:Thin film/surface and interfacial physical properties-related
Research InstitutionKyoto University

Principal Investigator

Haruta Mitsutaka  京都大学, 化学研究所, 准教授 (00711574)

Co-Investigator(Kenkyū-buntansha) 菅 大介  京都大学, 化学研究所, 准教授 (40378881)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Keywords電子状態 / 電子軌道 / STEM / EELS / 電子軌道マッピング / 電子顕微鏡 / 電子エネルギー損失分光法 / 電子状態マッピング / 状態マッピング
Outline of Research at the Start

本研究計画では球面収差補正器を装備した高空間分解能走査型透過電子顕微鏡とモノクロメーターを装備した高エネルギー分解能電子エネルギー損失分光法を組み合わせて、電子状態を実空間で可視化することを目的とし、主に以下の二つのトピックスについて研究を行う。1つは高温銅酸化物超伝導体における原子分解能でのホール分布研究。もう一つは電子状態マップにおける電子遷移終状態効果の検証である。

Outline of Final Research Achievements

The purpose of this research is to establish the local analytical technology using advanced electron microscopy which equipped monochromated electron source and spherical aberration corrector. We reported the method to measure high signal to noise ratio spectrum with very high spatial resolution. Then, we demonstrated that the extraction of local crystal field splitting and local coordination structure of metal-oxide octahedron by combining the theoretical calculation. And we reported that visualization of electron p orbital of oxygen in SrTiO3 crystal. We demonstrated that the anisotropic distribution of px, py and pz orbitals were directly visualized. These results can be used for other material to extract local information of chemical bond.

Academic Significance and Societal Importance of the Research Achievements

現在、電子顕微鏡の性能は格段に上昇し、異なる場所から異なる形状のスペクトルが原子レベルで得られる一方で、得られたスペクトル構造の解釈についてはまだ十分な理解がなされていなかった。今回の成果ではこれまでとは異なるアプローチにより新しい情報を引き出せる可能性を示したものであり、今後益々の応用が期待される。また、最終年度では電子軌道の可視化を実証したが、このことは電子顕微鏡の高分解能像研究を新たなステージに引き上げる成果であり、実験的原理実証の意義は大きい。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (24 results)

All 2021 2020 2019 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 2 results,  Invited: 6 results) Remarks (1 results)

  • [Journal Article] Electron orbital mapping of SrTiO<sub>3</sub> using electron energy-loss spectroscopy2021

    • Author(s)
      Iwashimizu C.、Haruta M.、Kurata H.
    • Journal Title

      Applied Physics Letters

      Volume: 119 Issue: 23 Pages: 232902-232902

    • DOI

      10.1063/5.0072190

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] モノクロメーター搭載STEM-EELSによる局所電子状態分析2021

    • Author(s)
      治田 充貴, 倉田 博基
    • Journal Title

      顕微鏡

      Volume: 56 Pages: 73-80

    • NAID

      130008086746

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Extraction of the local coordination and electronic structures of FeO6 octahedra using crystal field multiplet calculations combined with STEM-EELS2020

    • Author(s)
      Haruta Mitsutaka、Nii Aoi、Hosaka Yoshiteru、Ichikawa Noriya、Saito Takashi、Shimakawa Yuichi、Kurata Hiroki
    • Journal Title

      Applied Physics Letters

      Volume: 117 Issue: 13 Pages: 132902-132902

    • DOI

      10.1063/5.0020629

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase Segregated Cu2-xS-Ni3Se4 Bimetallic Selenide Nanocrystals Formed through Cation Exchange Reaction for Active Water Oxidation Precatalyst2020

    • Author(s)
      1.S. Kim, H. Mizuno, M. Saruyama, M. Sakamoto, M. Haruta, H. Kurata, T. Yamada, K. Domen, and T. Teranishi
    • Journal Title

      Chem. Sci.

      Volume: 11 Issue: 6 Pages: 1523-1530

    • DOI

      10.1039/c9sc04371c

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Local Elemental and Electronic Structure Analysis Using STEM-EELS2019

    • Author(s)
      治田充貴 倉田博基
    • Journal Title

      Nihon Kessho Gakkaishi

      Volume: 61 Issue: 1 Pages: 7-14

    • DOI

      10.5940/jcrsj.61.7

    • NAID

      130007605892

    • ISSN
      0369-4585, 1884-5576
    • Year and Date
      2019-02-28
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Extremely low count detection for EELS spectrum imaging by reducing CCD read-out noise2019

    • Author(s)
      Mitsutaka Haruta, Yoshifumi Fujiyoshi, Takashi Nemoto, Akimitsu Ishizuka, Kazuo Ishizuka, Hiroki Kurata
    • Journal Title

      Ultramicroscopy

      Volume: 207 Pages: 112827-112827

    • DOI

      10.1016/j.ultramic.2019.112827

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anomalous Photoinduced Hole Transport in Type I Core/Mesoporous-Shell Nanocrystals for Efficient Photocatalytic H2 Evolution2019

    • Author(s)
      Lian Zichao、Sakamoto Masanori、Kobayashi Yoichi、Tamai Naoto、Ma Jun、Sakurai Tsuneaki、Seki Shu、Nakagawa Tatsuo、Lai Ming-Wei、Haruta Mitsutaka、Kurata Hiroki、Teranishi Toshiharu
    • Journal Title

      ACS Nano

      Volume: 13 Issue: 7 Pages: 8356-8363

    • DOI

      10.1021/acsnano.9b03826

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic behavior of helium bubbles at high temperature in Si studied by in situ TEM, STEM-EELS, and TDS2019

    • Author(s)
      Ono K.、Miyamoto M.、Kurata H.、Haruta M.、Yatomi A.
    • Journal Title

      Journal of Applied Physics

      Volume: 126 Issue: 13 Pages: 135104-135104

    • DOI

      10.1063/1.5118684

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 電子エネルギー損失分光法による高空間分解能元素・電子状態測定2019

    • Author(s)
      治田充貴 倉田博基
    • Journal Title

      セラミックス

      Volume: 54 Pages: 77-80

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] STEM-EELS法によるマッピング-元素・状態・軌道-2021

    • Author(s)
      治田充貴
    • Organizer
      第36回分析電子顕微鏡討論会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] High spatial resolution electronic state analysis of transition metal oxides using STEM-EELS2021

    • Author(s)
      治田充貴
    • Organizer
      ナノ学会 ナノ構造・物性-ナノ機能・応用部会合同シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 電子顕微鏡法による酸素2p電子軌道の可視化2021

    • Author(s)
      岩清水千咲
    • Organizer
      応用物理学会 第82回秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 酸素K吸収端ELNESを用いた電子軌道マッピング2021

    • Author(s)
      岩清水千咲
    • Organizer
      日本顕微鏡学会 第77回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] High spatical resolution electronic structure analysis by scanning transmission electron microscopy and electron energy loss spectroscopy2021

    • Author(s)
      治田充貴
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] STEM-EELS法による高分解能電子状態解析2020

    • Author(s)
      治田充貴
    • Organizer
      日本セラミックス協会 第33回秋季シンポジウム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Low Count Detection for EELS Spectrum by Reducing CCD Read-out Noise2020

    • Author(s)
      M. Haruta, Y. Fujiyoshi, T. Nemoto, A. Ishizuka, K. Ishizuka and H. Kurata
    • Organizer
      Microscopy & Microanalysis 2020 Meeting (M&M2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] STEM-EELS法によるSrTiO3の電子軌道マッピング2020

    • Author(s)
      石清水 千咲, 治田 充貴 倉田 博基
    • Organizer
      日本顕微鏡学会 第63回シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] Towards Atomic Resolution State Analysis by STEM-EELS2020

    • Author(s)
      倉田 博基, 治田 充貴
    • Organizer
      日本顕微鏡学会 第76回学術講演会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Extraction of Local Coordination Structure and Crystal Field Splitting Using Crystal Field Multiplet Calculation2020

    • Author(s)
      M. Haruta
    • Organizer
      12th Asia-Pacific Microscopy Conference (APMC-2020)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Aloofビームによる有機結晶の価電子励起EELS2019

    • Author(s)
      倉田博基, 白澤由理, 治田充貴, 根本隆
    • Organizer
      日本顕微鏡学会第75回学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 結晶場多重項計算を用いた局所配位構造の導出2019

    • Author(s)
      治田 充貴,新居 あおい,倉田 博基
    • Organizer
      日本顕微鏡学会第75回学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] CCDノイズ低減によるEELSスペクトルのSN比の改善2019

    • Author(s)
      治田 充貴,藤吉 好史,根本 隆,石塚 顕在,石塚 和夫,倉田 博基
    • Organizer
      日本顕微鏡学会第75回学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] STEM-EELSによる局所電子構造解析・電子状態マッピング2019

    • Author(s)
      治田 充貴
    • Organizer
      日本顕微鏡学会第62回シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Remarks] D1の岩清水さんが顕微鏡学会シンポジウムでポスター賞を受賞しました

    • URL

      https://eels.kuicr.kyoto-u.ac.jp/EMCC/posts/news11.html

    • Related Report
      2020 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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