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J-GLOBAL ID：201201064071156682   Update date: Nov. 06, 2024

Ohtsuka Masahiro

オオツカ マサヒロ | Ohtsuka Masahiro
Affiliation and department：
Nagoya University Institute of Materials and Systems for Sustainability Advanced Measurement Technology Center (AMTC) Electron Nanoscopy Section

About Nagoya University Institute of Materials and Systems for Sustainability Advanced Measurement Technology Center (AMTC) Electron Nanoscopy Section


Job title： Lecturer
Other affiliations (1)：
Research field  (1)： Nanomaterials
Research keywords  (6)： Transmission electron microscopy ,  Dynamical electron diffraction theory ,  Electron channeling effect ,  Nanotechnology ,  Dopant occupation site analysis ,  Functional materials
Research theme for competitive and other funds  (13)：
  • 2023 - 2027 Multimodal electron beam analysis toward quantitative atomic-site-selective mapping of materials properties
  • 2023 - 2027 Development of a new EBSD analysis method combining dynamical scattering theory and machine learning
  • 2023 - 2027 Development of a new EBSD analysis method combining dynamical scattering theory and machine learning
  • 2023 - 2027 Multimodal electron beam analysis toward quantitative atomic-site-selective mapping of materials properties
  • 2023 - 2025 Characterizing local environments of dopants segregated to grain boundaries using beam-rocking electron microscopy
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Papers (29)：
  • Masahiro Ohtsuka, Yoshihiro Anan, Shunsuke Muto. Dopant site occupancies and iron valence states in SrZnxFe18-xO27 W-type hexaferrites using site-selective X-ray/electron spectroscopy. Journal of Alloys and Compounds. 2024. 1005. 176028-176028
  • Bohan Wang, Haomeng Shi, Tomotaka Miyazawa, Masahiro Ohtsuka, Shunsuke Muto, Shigeo Arai, Toshiyuki Fujii. Cell structure development during cyclic deformation of near-[001] and near-[011] copper single crystals. Materials Science and Engineering: A. 2024. 916. 147357
  • Bohan Wang, Yuuki Umeda, Tomotaka Miyazawa, Masahiro Ohtsuka, Shunsuke Muto, Shigeo Arai, Toshiyuki Fujii. Formation mechanism of dislocation network of cell structure in cyclically deformed near-[1 ̅11] copper single crystals. Materials Science and Engineering: A. 2023
  • Takafumi Ishida, Takeshi Owaki, Masahiro Ohtsuka, Makoto Kuwahara, Koh Saitoh, Tadahiro Kawasaki. Extension of focal depth by electron quasi-Bessel beam in atomic-resolution scanning transmission electron microscopy. Applied Physics Express. 2022. 15. 11. 115001-115001
  • Hitoshi Makino, Ján Rusz, Jian Wang, Diego Turenne, Masahiro Ohtsuka, Yukiko K, Takahashi, Hermann A. Dürr, Shunsuke Muto. A study on the relationship of magnetic moments orientation in L10 FePt network nanostructured film by electron energy-loss magnetic chiral dichroism using semi-core excitation spectra. Journal of Magnetism and Magnetic Materials. 2022. 558. 15. 169522-169522
ｍore...
Lectures and oral presentations  (101)：
  • 動力学的理論に基づく電子後方散乱回折のシミュレーション手法の開発と鉱物学への応用
    (日本鉱物科学会2024年年会・総会 2024)
  • Determination of La Segregation Sites on Al2O3 General Grain Boundaries using Combined STEM/HARECXS Analysis
    (2024)
  • Burgers vector analysis of dislocation network of cell boundary developed in [1 ̅11] copper single crystals during cyclic deformation with virtual scanning transmission electron microscopy
    (International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023) 2023)
  • Precipitation behavior in an Al-Mg-Si alloy during low temperature aging by STEM and DSC analysis
    (International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023) 2023)
  • Site-Selective Hole-Distribution Analysis of Spin-Ladder Superconducting Materials Using High-Angular Resolution Electron Channeling Electron Spectroscopy
    (20th International Microscopy Congress (IMC20) 2023)
ｍore...
Education (3)：
  • 2010 - 2013 Tokyo University of Science Graduate School, Division of Natural Science
  • 2007 - 2009 Tokyo University of Science Graduate School, Division of Natural Science
  • 2003 - 2007 Tokyo University of Science Faculty of Science
Professional career (3)：
  • 学士(理学) (東京理科大学)
  • 修士(理学) (東京理科大学)
  • 博士(理学) (東京理科大学)
Work history (4)：
  • 2020/04 - 現在 Nagoya University Electron Nanoscopy Section, Advanced Measurement Technology Center, Institute of Materials and Systems for Sustainability Lecturer
  • 2017/04 - 2020/03 Nagoya University Department of Materials Physics, Graduate School of Engineering Assistant Professor
  • 2012/09 - 2017/03 Nagoya University Department of Materials, Physics and Energy Engineering, Graduate School of Engineering Assistant Professor
  • 2009/04 - 2011/09 Foundation for Promotion of Material Science and Technology of Japan
Committee career (1)：
  • 2020/04 - 2022/03 The Japanese Society of Microscopy Subcommittee of young scientists for interdisciplinary microscopic researches
Awards (6)：
  • 2023/06 - 日本顕微鏡学会 公益社団法人日本顕微鏡学会 第79回学術講演会 優秀ポスター賞[一般「顕微鏡技術(装置・手法系)部門] 電子チャネリングカソードルミネッセンス分光による原子振動情報抽出
  • 2021/06 - 日本顕微鏡学会 公益社団法人日本顕微鏡学会 第77回学術講演会 優秀ポスター賞(一般部門) HARECXS法を用いたBaTiO3におけるドーパント占有サイトの定量解析
  • 2019/05 - 日本顕微鏡学会 公益社団法人日本顕微鏡学会 第74回学術講演会 優秀ポスター賞 STEM-CL法によるナノ分相ガラ スのナノスケール応力マッピング
  • 2014/05 - 日本顕微鏡学会 公益社団法人日本顕微鏡学会 第70回記念学術講演会 優秀ポスター賞 層状構造を有するNaイオン電子正極材料の結晶構造解析
  • 2013/05 - 日本顕微鏡学会 公益社団法人日本顕微鏡学会 第69回学術講演会 優秀ポスター賞 Bloch波法によるfrozen lattice近似の計算手法
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Association Membership(s) (3)：
日本金属学会 ,  日本顕微鏡学会 ,  日本物理学会
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