Site-selective analysis of cathodoluminescence of atoms/vacancies by using electron channeling effect

• Project/Area Number: 26870271
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Thin film/Surface and interfacial physical properties; Nanomaterials chemistry
• Research Institution: Nagoya University
• Principal Investigator: Ohtsuka Masahiro 名古屋大学, 工学(系)研究科(研究院), 助教 (60646529)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 透過電子顕微鏡 / 電子チャネリング / カソードルミネッセンス / 蛍光材料 / 発光材料

Outline of Final Research Achievements

The main achievement of this study is summarized in the following: (1) We have confirmed that the characteristic channeling patterns can be obtained from the variation of cathodoluminescence (CL) intensity under an electron incident-beam rocking, by using a transmission electron microscope equipped with a high-performance CL spectrometer. (2) We have developed a new quantification technique, based on the electron channeling effect, of the occupation sites of trace dopants in a complicated crystalline material.

Research Products

• [Journal Article] Quantitative determination of occupation sites of trace Co substituted for multiple Fe sites in M-type hexagonal ferrite using statistical beam-rocking TEM-EDXS analysis (2016)
  • Author(s): M. Ohtsuka, S. Muto, K. Tatsumi, Y. Kobayashi, T. Kawata
  • Journal Title: Microscopy Volume: 65 Issue: 2 Pages: 127-137
  • DOI: 10.1093/jmicro/dfv356
  • Peer Reviewed / Open Access
• [Presentation] 統計的ALCHEMI/HARECXS法を用いたZn添加W型フェライト中のZn占有サイト解析 (2016)
  • Author(s): 大塚真弘, 武藤俊介, 阿南義弘, 小林義徳
  • Organizer: 日本金属学会 2015年春期(第158回)講演大会
  • Place of Presentation: 東京理科大学 葛飾キャンパス
  • Year and Date: 2016-03-23
• [Presentation] ビームロッキングEDXを用いたドーパント占有サイト評価 (2015)
  • Author(s): 大塚真弘, 武藤俊介
  • Organizer: 日本金属学会 2015年秋期講演大会
  • Place of Presentation: 九州大学 伊都キャンパス
  • Year and Date: 2015-09-16
• [Presentation] Site occupancy determination of a dopant substituting for multiple sites using beam-rocking TEM-EDX and statistical analysis (2015)
  • Author(s): Masahiro Ohtsuka, Shunsuke Muto, Kazuyoshi Tatsumi
  • Organizer: Microscopy Conference 2015
  • Place of Presentation: Göttingen, Germany
  • Year and Date: 2015-09-06
• [Presentation] 統計的ALCHEMI法を用いた占有サイト評価における各種実験条件の依存性 (2015)
  • Author(s): 大塚真弘, 武藤俊介
  • Organizer: 日本顕微鏡学会 第71回学術講演会
  • Place of Presentation: 国立京都国際会館 アネックスホール
  • Year and Date: 2015-05-13
• [Presentation] 統計的ALCHEMI法/動力学計算を用いた磁性材料中の添加元素占有サイト評価 (2015)
  • Author(s): 大塚真弘, 武藤俊介, 巽一厳
  • Organizer: 日本顕微鏡学会 第71回学術講演会
  • Place of Presentation: 国立京都国際会館 アネックスホール
  • Year and Date: 2015-05-13
• [Presentation] 統計的ALCHEMI法と動力学計算を組み合わせた添加元素占有サイトの定量評価 (2014)
  • Author(s): 大塚真弘, 武藤俊介, 市川貴浩, 巽一厳
  • Organizer: 日本金属学会 2014年度秋期講演大会
  • Place of Presentation: 名古屋大学 東山キャンパス
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] Element/Site-Selective Local Ligand Analysis using High-Angular Resolution Electron Channeled Fluorescent Spectroscopy (2014)
  • Author(s): S. Muto, M. Ohtsuka, K. Tatsumi, M. Bosman, and H. Yamane
  • Organizer: 18th International Microscopy Congress
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2014-09-07 – 2014-09-12
• [Presentation] Slice-by-slice simulations of absorption potential for high-angular resolution electron channeled X-ray spectroscopy (2014)
  • Author(s): M.Ohtsuka, and S. Muto
  • Organizer: 18th International Microscopy Congress
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2014-09-07 – 2014-09-12