Quantitative energy loss by channeled electrons and its application to magnetic states at different atom layers

2010 Fiscal Year Final Research Report

• Project/Area Number: 21760516
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Physical properties of metals
• Research Institution: Nagoya University
• Principal Investigator: TATSUMI Kazuyoshi Nagoya University, 工学研究科, 講師 (00372532)
• Project Period (FY): 2009 – 2010
• Keywords: 原子・電子構造 / 電子顕微鏡分光 / 非経験的量子化学計算

Research Abstract

Site-specific configurations of transition metal 3d electrons in spinel ferrites were investigated by electron energy loss spectroscopy (EELS) under electron channeling conditions. In NiFe_2O_4, An electronic difference in the Fe sites caused by ligand field splitting of trivalent Fe was probed. This demonstrated the promise of site-specific valence and spin state analysis in spintronics applications of spinel ferrites.

Research Products

• [Journal Article] Quantitative determination of site occupancy of multi-rare-earth elements doped into Ca2SnO4 phosphor by electron channeling microanalysis (2010)
  • Author(s): Y.Fujimichi, S.Muto, K.Tatsumi, T.Kawano, H.Yamane
  • Journal Title: J.Sol.Stat.Chem. vol.183 Pages: 2127-2132
  • Peer Reviewed
• [Journal Article] Site-specific electronic configurations of Fe 3d states by energy loss by channeled electrons (2010)
  • Author(s): K.Tatsumi, S.Muto, I.Nishida, J.Rusz
  • Journal Title: Appl.Phys.Lett vol.96 Pages: 201911(3)
  • Peer Reviewed
• [Journal Article] Local electroni c structure analysis by site-selective ELN ES using electron channeling and first-pr inciples calculations (2009)
  • Author(s): K.Tatsumi, S.Muto
  • Journal Title: J.Phys.: Condens.Matter vol.21 Pages: 104213(1-4)
  • Peer Reviewed
• [Journal Article] Local electronic and atomic structures of Ce3+-containing fluoride/oxide determined by TEM-EELS and first principles calculations (2009)
  • Author(s): Nishida, K.Tatsumi, S.Muto
  • Journal Title: Mater.Trans. vol.50 Pages: 952-958
  • Peer Reviewed
• [Journal Article] Thermoelectric properties of Ba3Co2O6(CO3)(0.7) containing one-dimensional CoO6 octahedral columns (2009)
  • Author(s): K.Iwasaki, T.Yamamoto, H.Yamane, T.Takeda, S.Arai, H.Miyazaki, K.Tatsumi, M.Yoshino, T.Ito, Y.Arita, S.Muto, T.Nagasaki, T.Matsui
  • Journal Title: J.Appl.Phys. Vol.106 Pages: 34905
  • Peer Reviewed
• [Journal Article] 種々の電子状態評価技法の比較-ELNES に基づく化学結合性の議論- (2009)
  • Author(s): 武藤俊介, 巽一厳
  • Journal Title: 顕微鏡 Vol.44 Pages: 191
• [Presentation] 電子チャネリングを用いたサイト選択的電子分光の進展 (2010)
  • Author(s): 巽一厳, 武藤俊介
  • Organizer: 夏の電子顕微鏡解析技術フォーラム
  • Place of Presentation: 国立女性教育会館
  • Year and Date: 2010-08-20
• [Presentation] High angle resolution electron channeling electron spectroscopy to analyze valence states of transition metal ions in oxide ceramics (2010)
  • Author(s): K.Tatsumi, I.Nishida, S.Muto, J.Rusz
  • Organizer: PRICM-7(第七回環太平洋先端材料とプロセンシング国際会議)
  • Place of Presentation: ケアンズ,オーストラリア
  • Year and Date: 2010-08-04
• [Presentation] Quantitative site Occupancy Determination of Multi-Rare-Earth Elements Doped in Ca 2 SnO 4 Phosphor by Electron Channeling Microanalysis (2010)
  • Author(s): Y.Fujimichi, S.Muto, K.Tatsumi, H.Yamane, K.Kawano
  • Organizer: The 2nd International Symposium on Advanced Microscopy and Theoretical Calculation(AMTC2)
  • Place of Presentation: 名古屋国際議場
  • Year and Date: 2010-06-25
• [Presentation] High Angle Resolution Site-selective EELS by Incident Beam Rocking (2010)
  • Author(s): K.Tatsumi, I.Nishida, S.Muto, J.Rusz
  • Organizer: The 2nd International Symposium on Advanced Microscopy and Theoretical Calculation(AMTC2)
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2010-06-25
• [Presentation] Site occupancy determination of Eu/Y doped in Ca 2 SnO 4 phosphor by electron channeling microanalysis (2010)
  • Author(s): S.Muto, Y.Fujimichi, K.Tatsumi, H.Yamane, T.Kawano
  • Organizer: E-MRS 2010 Spring Meeting
  • Place of Presentation: Strasbourg, France
  • Year and Date: 2010-06-10
• [Presentation] 入射ビームロッキングによる高角度分解サイト選択的EELS 分析:理論計算, 日本顕微鏡学会 (2010)
  • Author(s): 巽一厳、西田育生、武藤俊介、Rusz Jan
  • Organizer: 第66回学術講演会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2010-05-25
• [Presentation] Eu,Y 添加Ca2SnO4 赤色蛍光材料の電子チャネリングTEM-EELS/EDX による状態分析 (2010)
  • Author(s): 武藤俊介、藤通有希、巽一厳、山根久典、川野哲也
  • Organizer: 日本顕微鏡学会 第66回学術講演会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2010-05-25
• [Presentation] 入射ビームロッキングによる高角度分解サイト選択的EELS 分析:実験と定量評価 (2010)
  • Author(s): 巽一厳、西田育生、武藤俊介、Rusz Jan
  • Organizer: 日本顕微鏡学会 第66 回学術講演会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2010-05-24
• [Presentation] 電子チャネリングを利用したサイト選択的EELS の理論計算と測定法の検討 (2010)
  • Author(s): 巽一厳・武藤俊介・西田育生・Jan Rusz
  • Organizer: 日本金属学会 2010年春期(第146回)大会
  • Place of Presentation: 筑波大学
  • Year and Date: 2010-03-29
• [Presentation] 電子チャネリングを利用した遷移金属酸化物におけるサイト選択的EELS とその理論計算 (2009)
  • Author(s): 巽一厳・武藤俊介・西田育生・Jan Rusz
  • Organizer: 日本セラミックス協会第22 回秋季シンポジウム
  • Place of Presentation: 愛媛大学
  • Year and Date: 2009-09-18
• [Presentation] 高角度分解能電子チャネリングEELS によるサイト別電子状態・占有率の決定 (2009)
  • Author(s): 西田育生・巽一厳・武藤俊介
  • Organizer: 日本金属学会 2009年秋期(第145回)大会
  • Place of Presentation: 京都大学
  • Year and Date: 2009-09-16
• [Presentation] 電子定在波EELS によるスピネルフェライト中Fe3+ の結晶場依存電子構造 (2009)
  • Author(s): 巽一厳・武藤俊介・西田育生・Jan Rusz
  • Organizer: 日本顕微鏡学会 第65回学術講演会
  • Place of Presentation: 仙台国際センター
  • Year and Date: 2009-05-29
• [Presentation] Detection of Fe 3+ crystal field splits associated with T- and O-sites in spinel cobalt-ferrite (2009)
  • Author(s): I.Nishida, K.Tatsumi, S.Muto
  • Organizer: EDGE 2009
  • Place of Presentation: カナダ バンフ センター
  • Year and Date: 2009-05-21
• [Presentation] Site-selective EELS analysis by utilizing electron channeling (2009)
  • Author(s): K.Tatsumi, I.Nishida, S.Muto
  • Organizer: multivariate curve resolution and first principles calculation(EDGE2009)
  • Place of Presentation: カナダ バンフセンター
  • Year and Date: 2009-05-21
• [Remarks] ホームページ等
  • URL: http://www.nucl.nagoya-u.ac.jp/emu/sub/TatsumiJ.html