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2011 Fiscal Year Annual Research Report

機能元素超構造解析

Planned Research

Project AreaNano Materials Science for Atomic Scale Modification
Project/Area Number 19053001
Research InstitutionThe University of Tokyo

Principal Investigator

幾原 雄一  東京大学, 大学院・工学系研究科, 教授 (70192474)

Co-Investigator(Kenkyū-buntansha) 溝口 照康  東京大学, 生産技術研究所, 准教授 (70422334)
柴田 直哉  東京大学, 大学院・工学系研究科, 准教授 (10376501)
阿部 英司  東京大学, 大学院・工学系研究科, 准教授 (70354222)
着本 享  東北大学, 原子分子材料科学高等研究機構, 講師 (50346087)
佐藤 幸生  東京大学, 大学院・工学系研究科, 助教 (80581991)
Keywords機能元素 / 電子顕微鏡 / 原子配列・電子状態 / 理論計算 / 粒界 / 転位 / ドーパント / 界面
Research Abstract

平成23年度はこれまでに確立してきた界面・表面・転位等の格子欠陥領域におけるナノ計測手法を活用することによる更なる高精度でのナノ機能元素評価ならびに界面・転位制御技術を用いた低次元物性の開拓などを目的として研究を行ってきた.具体的な項目を以下に述べる.
1.界面構造の超高精度解析
球面収差補正装置を導入した走査透過型電子顕微鏡(STEM)ならびに電子エネルギー損失分光(EELS)による原子レベルでの2次元マッピングにより酸化マグネシウム粒界における複合微量不純物元素の局在化ならびに規則構造の形成を明らかにした(Nature,2011)他,近年開発した環状明視野STEM法による軽元素位置も含む局所原子配列の直接観察(JACS,2011)なども成果を挙げた.また,高速計算システムの導入により,これまでより大きな規模の第一原理計算を行えるようになり,より一般的な粒界の計算に道筋をつけた(PRB,2011).また,本プロジェクトを通して行ってきた酸化亜鉛粒界におけるナノ機能元素の局在挙動の一連の解析から,粒界の回転角-局在挙動の相関性ならびに粒界構造転位を見いだした.
2.界面・転位構造制御による新奇低次元物性開拓
これまでに本プロジェクトにおいて明らかにしてきた界面における原子配列ならびにナノ機能元素の局在挙動の理解は低次元物性の開拓へと発展できると考えている.典型的な電気絶縁体のアルミナ(Al2O3)粒界にナノ機能元素を導入・局在させた結果,粒界に沿った2次元的な電子状態の形成が起こることが分かった.電気伝導測定の結果から粒界に沿った導電率の向上が認められ,局在伝導の発現が示唆されている.今後,局所配線形成や高温で用いる半導体,パワーデバイスなどへの応用ができる可能件があると期待する.

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

走査透過型電子顕微鏡法(STEM)と理論計算を有効に活用することにより,界面・表面等の格子欠陥領域に局在する「ナノ機能元素」の位置を原子レベルで直接観察することに成功し,また,直接観察に基づいて構築されたモデルを用いた第一原理計算から電子レベルでの役割も明らかにすることができた.また,粒界・転位等を積極的に活用した新奇物性の開拓にも進展があった.

Strategy for Future Research Activity

本特定領域自体は今年度をもって終了となるが,5年間のプロジェクトを通して得られた多くの知見は今後の研究においても積極的に活用する.粒界・界面・転位・表面といった格子欠陥領域における構造の原子・電子レベルでの理解,ならびにそこから得られた材料物性発現のメカニズムの理解は更なる材料設計へとつなげるごとができると期待する.今後,転位や界面等を制御することによる新奇な低次元物性の開拓,低次元物性を活用したデバイスへの応用などに展開していきたい.

  • Research Products

    (104 results)

All 2012 2011

All Journal Article (31 results) (of which Peer Reviewed: 30 results) Presentation (73 results)

  • [Journal Article] Atomic structure of a Σ3[110]/(111) grain boundary in CeO_22012

    • Author(s)
      B.Feng, H.Hojo, T.Mizoguchi, H.Ohta, S.D.Findlay, Y.Sato, N.Shibata, T.Yamamoto, Y.Ikuhara
    • Journal Title

      APPLIED PHYSICS LETTERS

      Volume: 100 Pages: 073109

    • DOI

      10.1063/1.3682310

    • Peer Reviewed
  • [Journal Article] Unusually Large Enhancement of Thermopower in an Electric Field Induced Two-Dimensional Electron Gas2012

    • Author(s)
      H.Ohta, T.Mizuno, S.Zheng, T.Kato, Y.Ikuhara, K.Abe, H, Kumomi, K.Nomura, H.Hosono
    • Journal Title

      ADVANCED MATERIALS

      Volume: 24 Pages: 740-744

    • DOI

      10.1002/adma.201103809

    • Peer Reviewed
  • [Journal Article] First principles pseudopotential calculation of electron energy loss near edge structares of lattice imperfections2012

    • Author(s)
      T.Mizoguchi, K.Matsunaga, E.Tochigi, Y.Ikuhara
    • Journal Title

      MICRON

      Volume: 43 Pages: 37-42

    • DOI

      10.1016/j.micron.2011.07.005

    • Peer Reviewed
  • [Journal Article] Highly ordered staging structural interface between LiFePO_4 and FePO_42012

    • Author(s)
      L.Suo, W.Han, X.Lu, L.Gu, Y.S.Hu, H.Li, D.Chen, L.Chen, S.Tsukimoto, Y.Ikuhara
    • Journal Title

      PHYSCAL CHEMISTRY CHEMICAL PHYSICS

      Volume: 14 Pages: 5363-5367

    • DOI

      10.1039/c2cp40610a

    • Peer Reviewed
  • [Journal Article] High crystallinity CuScO_2 delafossite films exhibiting ultraviolet photoluminescence grown by vapor-liquid-solid tri-phase epitaxy2012

    • Author(s)
      Y.Matsubara, T.Makino, H.Hiraga, C.Chen, S.Tsukimoto, K.Ueno, Y.Kozuka, Y.Ikuhara, M.Kawasaki
    • Journal Title

      APPLIED PHYSICS EXPRESS

      Volume: 5 Pages: 011201

    • DOI

      10.1143/APEX.5.011201

    • Peer Reviewed
  • [Journal Article] トピックス-粒界超構造の発見:不純物を制御して-2012

    • Author(s)
      着本享, 王中長, 齋藤光浩, 幾原雄一
    • Journal Title

      セラミックス

      Volume: 47 Pages: 177

  • [Journal Article] Electrically Induced Ferromagnetism at Room Temperature in Gobalt-Doped Titanium Dioxide2011

    • Author(s)
      Y.Yamada, K.Ueno, T.Fukumura, H.T.Yuan, H.Shimotani, Y.Iwasa, L.Gu, S.Tsukimoto, Y.Ikuhara, M.Kawasaki
    • Journal Title

      SCIENCE

      Volume: 332 Pages: 1065-1067

    • DOI

      10.1126/science.1202152

    • Peer Reviewed
  • [Journal Article] Characterization and atomic modeling of an asymmetric grain boundary2011

    • Author(s)
      HS.Lee, T.Mizoguchi, T.Yamamoto, S-JL.Kang, Y.Ikuhara
    • Journal Title

      PHYSICAL REVIEW B

      Volume: 84 Pages: 195319

    • DOI

      10.1103/PhysRevB.84.195319

    • Peer Reviewed
  • [Journal Article] Electric field thermopower modulation analysis of an interfacial conducting layer formed between Y_2O_3 and rutile TiO_22011

    • Author(s)
      T.Mizuno, T.Nagao, A.Yoshikawa, K.Koumoto, T.Kato, Y.Ikuhara, H.Ohta
    • Journal Title

      JOURNAL OF APPLIED PHYSICS

      Volume: 110 Pages: 063719

    • DOI

      10.1063/1.3633217

    • Peer Reviewed
  • [Journal Article] Preface to the special issue on intergranular and interphase boundaries in materials2011

    • Author(s)
      Y.Ikuhara, M.Kohyama
    • Journal Title

      JOURNAL OF MATERIALS SCIENCE

      Volume: 46 Pages: 4093-4094

    • DOI

      10.1007/s10853-011-5453-4

    • Peer Reviewed
  • [Journal Article] Atomic structure and strain field of threading dislocations in CeO_2 thin films onyttria-stabilized ZrO_22011

    • Author(s)
      H.Hojo, E.Tochigi, T.Mizoguchi, H.Ohta, N.Shibata, B.Feng, Y.Ikuhara
    • Journal Title

      APPLIED PHYSICS LETTERS

      Volume: 98 Pages: 153104

    • DOI

      10.1063/1.3575566

    • Peer Reviewed
  • [Journal Article] Grain boundary character dependence of oxygen grain boundary diffusion in alpha-Al_2O_3 bicrystals2011

    • Author(s)
      T.Nakagawa, H.Nishimura, I.Sakaguchi, N.Shibata, K.Matsunaga, T.Yamamoto, Y.Ikuhara
    • Journal Title

      SCRIPTA MATERIALIA

      Volume: 65 Pages: 544-547

    • DOI

      10.1016/j.scriptamat.2011.06.024

    • Peer Reviewed
  • [Journal Article] Growth of Ruddlesden-Popper type faults in Sr-excess SrTiO(3) homoepitaxial thin films by pulsed laser deposition2011

    • Author(s)
      Y.Tokuda, S.Kobayashi, T.Ohnishi, T.Mizoguchi, N.Shibata, Y.Ikuhara, T.Yamamoto
    • Journal Title

      APPLIED PHYSICS LETTERS

      Volume: 99 Pages: 173109

    • DOI

      10.1063/1.3656340

    • Peer Reviewed
  • [Journal Article] Direct Observation of Lithium Staging in Partially Delithiated LiFePO_4 at Atomic Resolution2011

    • Author(s)
      Gu, Lin, Zhu, Changbao, Li, Hong, Yu, Yan, Li, Chilin, S.Tsukimoto, J.Maier, Y.Ikuhara
    • Journal Title

      JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

      Volume: 133 Pages: 4661-4663

    • DOI

      10.1021/ja109412x

    • Peer Reviewed
  • [Journal Article] Grain boundary atomic structures and light-element visualization in ceramics : combination of Cs-corrected scanning transmission electron microscopy and first-principies calculations2011

    • Author(s)
      Y.Ikuhara
    • Journal Title

      JOURNAL OF ELECTRON MICROSCOPY

      Volume: 60 Pages: S173-S188

    • DOI

      10.1093/jmicro/dfr049

    • Peer Reviewed
  • [Journal Article] Mass transfer through a single grain boundary in alumina bicrystals under oxygen potential gradients2011

    • Author(s)
      T.Matsudaira, S.Kitaoka, N.Shibata, T.Nakagawa, Y.Ikuhara
    • Journal Title

      JOURNAL OF MATERIALS SCIENCE

      Volume: 46 Pages: 4407-4412

    • DOI

      10.1007/s10853-010-5017-z

    • Peer Reviewed
  • [Journal Article] A new iron pnictide oxide (Fe_2As_2)(Ca_5(Mg,Ti)_4O_y)and a new phase in the Fe-As-Ca-Mg-Ti-O system2011

    • Author(s)
      H.Ogino, Y.Shimizu, N.Kawaguchi, K.Kishio, J.Shimoyama, T.Tohei, Y.Ikuhara
    • Journal Title

      SUPERCONDUCTOR SCIENCE & TECHNOLOGY

      Volume: 24 Pages: 085020

    • DOI

      10.1088/0953-2048/24/8/085020

    • Peer Reviewed
  • [Journal Article] TEM observation of liquid-phase bonded aluminum-silicon/aluminum nitride hetero interface2011

    • Author(s)
      CM.Montesa, N.Shibata, T.Tohei, Y.Ikuhara
    • Journal Title

      JOURNAL OF MATERIALS SCIENCE

      Volume: 46 Pages: 4392-4396

    • DOI

      10.1007/s10853-010-5023-1

    • Peer Reviewed
  • [Journal Article] Zr segregation and associated Al vacancies in alumina grain boundaries2011

    • Author(s)
      J.P.Buban, T.Mizoguchi, N.Shibata, E.Abe, T.Yamamoto, Y.Ikuhara
    • Journal Title

      JOURNAL OF THE CERAMIC SOCIETY OF JAPAN

      Volume: 19 Pages: 840-844

    • Peer Reviewed
  • [Journal Article] Strontium vacancy clustering in Ti-excess SrTiO_3 thin film2011

    • Author(s)
      Y.Tokuda, S.Kobayashi, T.Ohnishi, T.Mizoguchi, N.Shibata, Y.Ikuhara, T.Yamamoto
    • Journal Title

      APPLIED PHYSICS LETTERS

      Volume: 99 Pages: 033110

    • DOI

      10.1063/1.3616136

    • Peer Reviewed
  • [Journal Article] The effect of vacancies on the annular dark field image contrast of grain boundaries : a SrTiO_3 case study2011

    • Author(s)
      H.S.Lee, S.D.Findlay, T.Mizoguchi, Y.Ikuhara
    • Journal Title

      ULTRAMICROSCOPY

      Volume: 111 Pages: 1531-1539

    • DOI

      10.1016/j.ultramic.2011.08.013

    • Peer Reviewed
  • [Journal Article] Ab-initio multiplet calculation of oxygen vacancy effect on Ti-L_<2,3> electron energy loss near edge structures of BaTiO_32011

    • Author(s)
      S.Ootsuki, H.Ikeno, Y.Umeda, H.Moriwake, A.Kuwabara, O.Kido, S.Ueda, I.Tanaka, Y.Fujikawa, T.Mizoguchi
    • Journal Title

      APPLIED PHYSICS LETTERS

      Volume: 99 Pages: 233109-1-233109-3

    • DOI

      10.1063/1.3663543

    • Peer Reviewed
  • [Journal Article] Atomic and Electronic Structures of the SrVO3-LaAlO3 Interface2011

    • Author(s)
      M.Chi, J.P.Bradley, N.D.Browning, T.Mizoguchi, L.W.Martin, R.Ramesh, H.Ikeno, I.Tanaka
    • Journal Title

      JOURNAL OF APPLIED PHYSICS

      Volume: 110 Pages: 046104-1-046104-3

    • DOI

      10.1063/1.3601870

    • Peer Reviewed
  • [Journal Article] Controlling interface intermixing and property of SrTiO3 based superlattices2011

    • Author(s)
      T.Mizoguchi, H.Ohta, HS.Lee, N.Takahashi, Y.Ikuhara
    • Journal Title

      ADVANCED FUNCTIONAL MATERIALS

      Volume: 21 Pages: 2258-2263

    • DOI

      10.1002/adfm.201100230

    • Peer Reviewed
  • [Journal Article] Theoretical Fingerprints of Transition Metal L2,3 XANES and ELNES for Lithium Transition Metal Oxides by ab Initio Multiplet Calculations2011

    • Author(s)
      H.Ikeno, T.Mizoguchi, Y.Koyama, I.Tanaka
    • Journal Title

      JOURNAL OF PHYSICAL CHEMISTRY C

      Volume: 115 Pages: 11871-11879

    • DOI

      10.1021/jp202383n

    • Peer Reviewed
  • [Journal Article] Al-L2,3 edge x-ray absorption spectra in III-V semiconductors : Many-body perturbation theory in comparison with experiment2011

    • Author(s)
      W.Olvsson, I.Tanaka, T.Mizoguchi, G.Radtke, P.Puchnig, C.Ambrosh-Draxl
    • Journal Title

      PHYSICAL REVIEW B

      Volume: 83 Pages: 195206-1-195206-8

    • DOI

      10.1103/PhysRevB.83.195206

    • Peer Reviewed
  • [Journal Article] Ab-initio charge transfer multiplet calculations on the L_<2,3> XANES and ELNES of 3d transition metal oxides2011

    • Author(s)
      H.Ikeno, T.Mizoguchi, I.Tanaka
    • Journal Title

      PHYSICAL REVIEW B

      Volume: 83 Pages: 155107-1-155107-13

    • DOI

      10.1103/PhysRevB.83.155107

    • Peer Reviewed
  • [Journal Article] Magnetic properties of Sr_2FeTaO_6 double perovskite epitaxially grown by pulsed-laser deposition2011

    • Author(s)
      S.Chakraverty, M.Saito, S.Tsukimoto, Y.Ikuhara, A.Ohtomo, M.Kawasaki
    • Journal Title

      APPLIED PHYSICS LETTERS

      Volume: 99 Pages: 223101

    • DOI

      10.1063/1.3663214

    • Peer Reviewed
  • [Journal Article] Atom-resolved imaging of ordered defect superstructures at individual grain boundaries2011

    • Author(s)
      Z.C.Wang, M.Saito, K.P.McKenna, L.Gu, S.Tsukimoto, A.L.Shluger, Y.Ikuhara
    • Journal Title

      NATURE

      Volume: 479 Pages: 380-383

    • DOI

      10.1038/nature10593

    • Peer Reviewed
  • [Journal Article] Heterointerface : atomic structures, electric states, and related properties2011

    • Author(s)
      Z.C.Wang, M.Saito, S.Tsukimoto, Y.Ikuhara
    • Journal Title

      JOURNAL OF THE CERAMICS SOCIETY OF JAPAN

      Volume: 119 Pages: 783-793

    • DOI

      10.2109/jcersj2.119.783

    • Peer Reviewed
  • [Journal Article] Ferrimagnetism and spontaneous ordering of transition metals in double perovskite La_2CrFeO_6 films2011

    • Author(s)
      S.Chakraverty, A.Ohtomo, D.Okuyama, M.Saito, M.Okude, R.Kumai, T.Arima, Y.Tokura, S.Tsukimoto, Y.Ikuhara, M.Kawasaki
    • Journal Title

      PHYSICAL REVIEW B

      Volume: 84 Pages: 064436

    • DOI

      10.1103/PhysRevB.84.064436

    • Peer Reviewed
  • [Presentation] Direct observation of Pt on TiO_2 surface2012

    • Author(s)
      Teng-Yuan Chang, Ryo Ishikawa, Naoya Shibata, Katsuyuki Matsunaga, Yukio, Sato, Teruyaki Mizoguchi, Takahisa Yamamoto, Yuichi Ikuhara
    • Organizer
      GRI Symposium III on Cluster Science
    • Place of Presentation
      Toyota(poster)
    • Year and Date
      20120201-20120203
  • [Presentation] Atomic Structure and Electronic State in Lanthanum Titanate with Semiconducting Layered Structure2012

    • Author(s)
      S.Tsukimoto, L.Gu, Z.C.Wang, M.Saito, Y.Ikuhara, J.G.Bednorz
    • Organizer
      2012 WPI-AIMR Annual Workshop
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2012-02-21
  • [Presentation] Atom-by-atom Analysis of Functional Ceramics Interfaces and Grain Boundaries2012

    • Author(s)
      Z.C.Wang, M.Saito, L.Gu, C.L.Chen, S.Tsukimoto, Y.Ikuhara
    • Organizer
      2012 WPI-AIMR Annual Workshop
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2012-02-21
  • [Presentation] Microstructural Characterization of Polycrystalline Cubic Boron Nitride Sintered under High Pressure and High Temperature2012

    • Author(s)
      C.L.Chen, Z.C.Wang, R.Huang, N.Shibata, T.Taniguchi, Y.Ikuhara
    • Organizer
      2012 WPI-AIMR Annual Workshop
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2012-02-21
  • [Presentation] Strain Control of Orbital Polarization and Correlated Metal-Insulator Transition in La_2CoMnO_6 from First Principles2012

    • Author(s)
      S.H.Lv, X.J.Liu, J.Meng, Z.C.Wang, M.Saito, S.Tsukimoto, Y.Ikuhara
    • Organizer
      2012 WPI-AIMR Annual Workshop
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2012-02-21
  • [Presentation] STEM-EELS and first principles study on SrTiO3 based materials : Understanding and controlling intermixing at hetero-interface2012

    • Author(s)
      Teruyasu Mizoguchi
    • Organizer
      Joint MCEM/School of Physics seminar
    • Place of Presentation
      Monash University, Australia(招待講演)
    • Year and Date
      2012-02-02
  • [Presentation] TEM Study of Structure of MgO Sigma 5 (310)[001] Symmetrical Tilt Grain Boundary2012

    • Author(s)
      M.Saito, Z.C.Wang, L.Gu, S.Tsukimoto, Y.Ikuhara
    • Organizer
      International Symposium on Role of Electron Microscopy in Industry
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      2012-01-19
  • [Presentation] HRTEM Investigation of Grain Boundary of Polycrystalline Cubic Boron Nitride2012

    • Author(s)
      C.L.Chen, Z.C.Wang, M.Saito, S.Tsukimoto, R.Sun, T.Taniguchi, Y.Ikuhara
    • Organizer
      International Symposium on Role of Electron Microscopy in Industry
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      2012-01-19
  • [Presentation] Atomic-Scale Structure and Electronic Property of the SrTiO_3/TiO_2 Interface2012

    • Author(s)
      Z.C.Wang, M.Saito, R.Sun, C.L.Chen, S.Tsukimoto, Y.Ikuhara
    • Organizer
      International Symposium on Role of Electron Microscopy in Industry
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      2012-01-19
  • [Presentation] Microstructure and Thermal Stability of Fe-Co Based Nanogranular Thin Films with Tunnel-Type Magnetroresistance2012

    • Author(s)
      S.Tsukimoto, N.Kobayashi, M.Saito, Z.C.Wang, K.Arai, Y.Ikuhara, T.Masumoto
    • Organizer
      International Symposium on Role of Electron Microscopy in Industry
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      2012-01-19
  • [Presentation] Direct Observation of Function Providing Elements in Ceramics and Their Properties2011

    • Author(s)
      Y.Ikuhara
    • Organizer
      The 28th Japan-Korea International Ceramics Seminar
    • Place of Presentation
      Okayama(招待講演)
    • Year and Date
      20111123-20111126
  • [Presentation] ABF STEM Imaging of Light Elements in Oxides2011

    • Author(s)
      Y.Ikuhara, R.Huang, S.Findlay, T.Mizoguchi, N.Shibata, T.Hirayama
    • Organizer
      Materials Science & Technology 2011 Conference (MS&T'11)
    • Place of Presentation
      Columbus, Ohio USA(招待講演)
    • Year and Date
      20111016-20111020
  • [Presentation] アルミナ(0001)/[0001]小角粒界中らせん転位ネットワークにおけるErの偏析挙動2011

    • Author(s)
      毛塚雄己, 栃木栄太, 柴田直哉, 幾原雄
    • Organizer
      日本金属学会2011年秋期講演(第149回)大会
    • Place of Presentation
      沖縄(ポスター)
    • Year and Date
      20110925-20110927
  • [Presentation] ABF STEM Characterization of Light Elements in Ceramics2011

    • Author(s)
      Y.Ikuhara
    • Organizer
      Microscopy & Microanalysis 2011
    • Place of Presentation
      Nashville TN, USA(招待講演)
    • Year and Date
      20110807-20110811
  • [Presentation] Segregation behavior of rare earth element to the screw dislocation network in the low-angle twist grain boundary of alpha-Al_2O_32011

    • Author(s)
      Yuki Kezuka, Eita Tochigi, Naoya Shibata, Takahisa Yamamoto, Yuichi Ikuhara
    • Organizer
      E-MRS ICAM IUMRS 2011 Spring Meeting
    • Place of Presentation
      Nice, France(oral)
    • Year and Date
      20110509-20110512
  • [Presentation] Atom-by-atom Analysis of Functional Ceramics Interfaces2011

    • Author(s)
      Z.C.Wang, M.Saito, S.Tsukimoto, Y.Ikuhara
    • Organizer
      The 21st Academic Symposium of Mateials Research Society-Japan (MRS-J)
    • Place of Presentation
      Yokohama, Japan(招待講演)
    • Year and Date
      2011-12-20
  • [Presentation] First Principles Calculations of Finite Temperature Properties of Ceramics Materials2011

    • Author(s)
      T.Tohei, H.S.Lee, T.Mizoguchi, Y.Ikuhara
    • Organizer
      第21回日本MRS学術シンポジウム
    • Place of Presentation
      横浜(ポスター)
    • Year and Date
      2011-12-19
  • [Presentation] 透過型電子顕微鏡法を用いたセラミック材料の解析2011

    • Author(s)
      佐藤幸生
    • Organizer
      第120回強誘電体研究会
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2011-12-16
  • [Presentation] 第一原理計算と電子線エネルギー損失分光による異相界面の電子構造解析2011

    • Author(s)
      溝口照康, 柴田直哉, 幾原雄一, Uli Dahmen
    • Organizer
      表面科学会
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2011-12-16
  • [Presentation] Direct imaging of individual dopant atoms in buried crystalline interfaces2011

    • Author(s)
      N.Shibata, S.D.Findlay, T.Mizoguchi, Y.Ikuhara
    • Organizer
      2011 MRS Fall meeting
    • Place of Presentation
      Boston, USA(招待講演)
    • Year and Date
      2011-11-28
  • [Presentation] Introducing Ohmic Contacts into SiC Technology2011

    • Author(s)
      Z.C.Wang, S.Tsukimoto, M.Saito, Y.Ikuhara
    • Organizer
      The VI International Conference on Physical and Numerical Simulation of Materials Processing (ICPNS 2010)
    • Place of Presentation
      Guilin, China(招待講演)
    • Year and Date
      2011-11-14
  • [Presentation] Atomic-Scale Structures of ZnO [0001] Tilt Grain Boundaries2011

    • Author(s)
      Y.Sato, T.Mizoguchi, N.Shibata, T.Yamamoto, Y.Ikuhara
    • Organizer
      15th International Conference on Thin Films
    • Place of Presentation
      Kyoto(oral)
    • Year and Date
      2011-11-11
  • [Presentation] First Principles Study on Migration Mechanism in Perovskite Oxides2011

    • Author(s)
      T.Mizoguchi, T.K.Yamamoto
    • Organizer
      ICTF-15
    • Place of Presentation
      Kyoto
    • Year and Date
      2011-11-11
  • [Presentation] Insulating-Layer-Induced Insulator-to-Metal Transition in A-site Excess Nonstoichiometric Perovskites2011

    • Author(s)
      Z.C.Wang, M.Okude, M.Saito, S.Tsukimoto, A.Ohtomo, M.Tsukada, M.Kawasaki, Y.Ikuhara
    • Organizer
      15th International Conference on Thin Films
    • Place of Presentation
      Kyoto, Japan(招待講演)
    • Year and Date
      2011-11-11
  • [Presentation] Atomic structure of CeO2 single grain boundary : An atomic resolution STEM study of CeO2 thin films on YSZ bicrystal substrate2011

    • Author(s)
      Bin Feng, Hajime Hojo, Teruyasu Mizoguchi, Hiromichi Ohta, Scott Findlay, Yukio Sato, Naoya Shibata, Yuichi Ikuhara
    • Organizer
      15th International Conference on Thin Films (ICTF-15)
    • Place of Presentation
      Kyoto(oral)
    • Year and Date
      2011-11-10
  • [Presentation] 機能元素超構造の直視と材料設計2011

    • Author(s)
      幾原雄一
    • Organizer
      日本金属学会2011年秋季講演(第149回)大会
    • Place of Presentation
      沖縄(招待講演)
    • Year and Date
      2011-11-09
  • [Presentation] LaCuOSe:Mg/MgO薄膜微構造の原子レベルSTEM観察2011

    • Author(s)
      藤平哲也, 溝口照康, 幾原雄一, 平松秀典, 細野秀雄
    • Organizer
      日本金属学会2011年秋期(第149回)大会
    • Place of Presentation
      沖縄(口頭)
    • Year and Date
      2011-11-08
  • [Presentation] 酸化マグネシウム双結晶における粒界原子構造2011

    • Author(s)
      着本享, 王中長, 斎藤光浩, 谷林, 幾原雄一
    • Organizer
      平成23年日本金属学会秋期(第149回)大会
    • Place of Presentation
      沖縄コンベンションセンター,沖縄
    • Year and Date
      2011-11-08
  • [Presentation] ZnO結晶粒界における機能元素の存在状態および構造安定性2011

    • Author(s)
      佐藤幸生, 井上太志, 柴田直哉, 溝口照康, 幾原雄一
    • Organizer
      日本金属学会2011年秋期(第149回大会)
    • Place of Presentation
      沖縄(口頭)
    • Year and Date
      2011-11-07
  • [Presentation] 反強磁性NiO薄膜中転位における局所磁性2011

    • Author(s)
      杉山一生、小林俊介、佐藤幸生、柴田直哉、溝口照康、幾原雄一、山本剛久
    • Organizer
      日本金属学会秋季(第149回)大会
    • Place of Presentation
      沖縄(ポスター)
    • Year and Date
      2011-11-07
  • [Presentation] WC-Co系超硬合金の微細組織観察による粒成長挙動の解明2011

    • Author(s)
      水向祐樹、杉山一生、白瀬文一、谷内俊之、岡田一樹、幾原雄一、山本剛久
    • Organizer
      日本金属学会2011年秋季講演(第149回)大会
    • Place of Presentation
      沖縄(ポスター)
    • Year and Date
      2011-11-07
  • [Presentation] HAADF and ABF STEM Characterization of Ceramic Interfaces2011

    • Author(s)
      Y.Ikuhara
    • Organizer
      12^<th> KIM/JIM Joint Symposium on Electron Microscopy for Materials Science
    • Place of Presentation
      Okinawa(招待講演)(Japan)
    • Year and Date
      2011-11-06
  • [Presentation] 0.5mass%VC添加WC-12mass%Co超硬合金中Vの焼結中挙動2011

    • Author(s)
      杉山一生、水向祐樹、岡田一樹、白瀬文一、谷内俊之、幾原雄一、山本剛久
    • Organizer
      2011年粉体粉末冶金協会秋季大会
    • Place of Presentation
      大阪(口頭)
    • Year and Date
      2011-10-27
  • [Presentation] 無添加WC-12mass%Co超硬合金における界面構造の合金炭素量依存性2011

    • Author(s)
      水向祐樹、杉山一生、岡田一樹、白瀬文一、谷内俊之、幾原雄一、山本剛久
    • Organizer
      粉体粉末冶金協会平成23年度秋季(第108回)大会
    • Place of Presentation
      大阪(口頭)
    • Year and Date
      2011-10-27
  • [Presentation] Insulator-to-Metal Transition Induced by Insulating Layers in A-site Excess Nonstoichiometric Oxides2011

    • Author(s)
      Z.C.Wang, M.Okude, M.Saito, S.Tsukimoto, A.Ohtomo, M.Tsukada, M.Kawasaki, Y.Ikuhara
    • Organizer
      2011 Materials Science and Technology (MS&T2011)
    • Place of Presentation
      Columbus, Ohio, USA
    • Year and Date
      2011-10-19
  • [Presentation] Direct Imaging of Ordered Defect Superstructures at Grain Boundaries2011

    • Author(s)
      Z.C.Wang, M.Saito, K.McKenna, L.Gu, S.Tsukimoto, A.Shluger, Y.Ikuhara
    • Organizer
      2011 Materials Science and Technology (MS&T2011)
    • Place of Presentation
      Columbus, Ohio, USA
    • Year and Date
      2011-10-17
  • [Presentation] HAADF and ABF STEM Characterization of Ceramic Interfaces2011

    • Author(s)
      Y.Ikuhara
    • Organizer
      TEM Workshop Electron Microscopy, Exploring Materials on the Atomic Scale
    • Place of Presentation
      Darmstadt, Germany(招待講演)
    • Year and Date
      2011-10-10
  • [Presentation] 若手研究者の皆様へ~これまでの体験談から~2011

    • Author(s)
      佐藤幸生
    • Organizer
      特定領域研究第4回若手の会
    • Place of Presentation
      愛知(招待講演)
    • Year and Date
      2011-09-28
  • [Presentation] LaCuOSe:Mg/MgO薄膜微構造の原子レベルSTEM観察2011

    • Author(s)
      藤平哲也
    • Organizer
      特定領域研究「機能元素のナノ材料科学」第四回若手の会
    • Place of Presentation
      愛知(ポスター)
    • Year and Date
      2011-09-27
  • [Presentation] ペロブスカイト型マンガン酸化物中の酸素欠損観察2011

    • Author(s)
      小林俊介
    • Organizer
      特定領域研究第4回若手の会
    • Place of Presentation
      愛知(ポスター)
    • Year and Date
      2011-09-27
  • [Presentation] WC-Co系超硬合金の界面構造観察2011

    • Author(s)
      水向祐樹
    • Organizer
      特定領域研究「機能元素のナノ材料科学」第4回若手の会
    • Place of Presentation
      愛知(ポスター)
    • Year and Date
      2011-09-27
  • [Presentation] LaAlO3における原子拡散と欠陥構造の第一原理計算2011

    • Author(s)
      山本貴志, 溝口照康
    • Organizer
      特定領域研究「機能元素のナノ材料科学」第4回若手の会
    • Place of Presentation
      愛知
    • Year and Date
      2011-09-27
  • [Presentation] 第一原理計算とEELSによるイオン液体の原子・電子構造解析2011

    • Author(s)
      松井良樹, 溝口照康
    • Organizer
      特定領域研究「機能元素のナノ材料科学」第4回若手の会
    • Place of Presentation
      愛知
    • Year and Date
      2011-09-27
  • [Presentation] 収差補正STEMによる原子直視と材料設計2011

    • Author(s)
      幾原雄一
    • Organizer
      4セラミックス研究機関合同講演会
    • Place of Presentation
      名古屋(招待講演)
    • Year and Date
      2011-09-26
  • [Presentation] Direct Observation of Li ions in Li Battery Cathode Materials by STEM2011

    • Author(s)
      Y.Ikuhara
    • Organizer
      ISE 2011
    • Place of Presentation
      Niigata(招待講演)
    • Year and Date
      2011-09-13
  • [Presentation] PMN-PT中の微小領域におけるTEM・STEM観察2011

    • Author(s)
      佐藤幸生, 平山司, 幾原雄一
    • Organizer
      日本セラミックス協会第24回秋季シンポジウム
    • Place of Presentation
      札幌(口頭)
    • Year and Date
      2011-09-09
  • [Presentation] 内殻励起スペクトルと第一原理計算による界面研究2011

    • Author(s)
      溝口照康, 松井良樹, 柴田直哉, 松永克志, 幾原雄一
    • Organizer
      XAFS討論会,2011年
    • Place of Presentation
      自然科学研究機構岡崎コンファレンスセンター
    • Year and Date
      2011-09-09
  • [Presentation] 金属微粒子-酸化物界面原子構造の直接観察:TiO_2(110)表面上の白金原子の構造解析2011

    • Author(s)
      張騰元, 柴田直哉, 溝口照康, 佐藤幸生, 山本剛久, 幾原雄一
    • Organizer
      日本セラミックス協会第24回秋季シンポジウム
    • Place of Presentation
      札幌(口頭)
    • Year and Date
      2011-09-07
  • [Presentation] セリアにおけるΣ3[110]/(111)粒界の原子構造解析2011

    • Author(s)
      フウビン、北條元、溝口照康、太田裕道、スコット フィンドレー、佐藤幸生、幾原雄一
    • Organizer
      セラミックス協会第24回秋期シンポジウム
    • Place of Presentation
      札幌(ポスター)
    • Year and Date
      2011-09-07
  • [Presentation] アルミナ非CSL粒界における金属元素の偏析挙動2011

    • Author(s)
      小原和貴、佐藤幸生、柴田直哉、山本剛久、幾原雄一
    • Organizer
      セラミックス協会第24回秋期シンポジウム
    • Place of Presentation
      札幌(ポスター)
    • Year and Date
      2011-09-07
  • [Presentation] 多分割検出による原子分解能STEMの新しい展開2011

    • Author(s)
      柴田直哉
    • Organizer
      第27回分析電顕討論会
    • Place of Presentation
      幕張(招待講演)
    • Year and Date
      2011-09-06
  • [Presentation] WIEN2kによる内殻電子励起スペクトル(ELNESおよびXANES)の第一原理計算2011

    • Author(s)
      溝口照康
    • Organizer
      アクチノイドセミナー
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2011-09-06
  • [Presentation] パルスレーザー堆積法を用いたSrMnO_<3-δ>薄膜の酸素欠損制御2011

    • Author(s)
      小林俊介, 大西剛, 溝口照康, 柴田直哉, 佐藤幸生, 幾原雄一, 山本剛久
    • Organizer
      秋季第72回応用物理学会学術講演会
    • Place of Presentation
      山形(口頭)
    • Year and Date
      2011-09-01
  • [Presentation] 収差補正STEMによる軽元素の直視-酸素から水素まで-2011

    • Author(s)
      幾原雄一, 他
    • Organizer
      第72回応用物理学会学術講演会
    • Place of Presentation
      山形(招待講演)
    • Year and Date
      2011-08-30
  • [Presentation] Novel atomic resolution scanning transmission electron microscopy for oxide interface characterization2011

    • Author(s)
      N.Shibata, S.D.Findlay, Y.Ikuhara
    • Organizer
      IMRCXX 2011
    • Place of Presentation
      Cancun, Mexico(招待講演)
    • Year and Date
      2011-08-15
  • [Presentation] Interface and defect structures in epitaxial thin films of LaCuOSe and related compounds by HAADF-STEM observations2011

    • Author(s)
      T.Tohei, T.Mizoguchi, H.Hiramatsu, H.Hosono, Y.Ikuhara
    • Organizer
      Microscopy and Microanalysis
    • Place of Presentation
      Nashville, USA(口頭)
    • Year and Date
      2011-08-11
  • [Presentation] 機能元素の界面設計2011

    • Author(s)
      幾原雄一
    • Organizer
      第45回基礎科学部会セミナー、日本セラミックス協会
    • Place of Presentation
      鹿児島(招待講演)
    • Year and Date
      2011-08-04
  • [Presentation] Thermodynamic Properties of Ceramics Materials by First Principles Phonon State Calculations2011

    • Author(s)
      T.Tohei, H.S.Lee, T.Mizoguchi, Y.Ikuhara
    • Organizer
      International Symposium on Atomistic Modeling for Mechanics and Multiphysics of Materials (ISAM4)
    • Place of Presentation
      Tokyo(口頭)
    • Year and Date
      2011-07-20
  • [Presentation] Interface intermixing in SrTiO3 based superlattice2011

    • Author(s)
      T.Mizoguchi, H.Ohta, Y.Ikuhara
    • Organizer
      ISAM4 2011
    • Place of Presentation
      Tokyo
    • Year and Date
      2011-07-20
  • [Presentation] Insulating-layer-induced insulator-metal transition in La-doped STO ceramics2011

    • Author(s)
      S.Tsukimoto, M.Saito, Z.C.Wang, M.Okude, A.Ohtomo, M.Kawasaki, Y.Ikuhara
    • Organizer
      The 9th International Meeting of Pacific Rim Ceramic Society
    • Place of Presentation
      Cairns, Australia
    • Year and Date
      2011-07-14
  • [Presentation] Atomic-scale characterization of Ti3SiC2 MAX phase grown on SiC2011

    • Author(s)
      S.Tsukimoto, Y.Ikuhara
    • Organizer
      The 9th International Meeting of Pacific Rim Ceramic Society
    • Place of Presentation
      Cairns, Australia(招待講演)
    • Year and Date
      2011-07-12
  • [Presentation] Insulating-Layer-Induced Insulator-to-Metal Transition in Ruddlesden-Popper Series2011

    • Author(s)
      Z.C.Wang, M.Saito, S.Tsukimoto, T.Mizoguchi, M.Okude, A.Ohtomo, T.Kita, M.Tsukada, M.Kawasaki, Y.Ikuhara
    • Organizer
      International Workshop on Advanced Electron Microscopy and Applications in Materials Science
    • Place of Presentation
      Shenyang, China
    • Year and Date
      2011-07-12
  • [Presentation] 機能元素の直視と新材料設計2011

    • Author(s)
      幾原雄一
    • Organizer
      財)ファインセラミックスセンター研究成果発表会2011
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2011-07-08
  • [Presentation] Atomic scale observation of fluorine dopants in LaFeAsO_<1-x>F_x superconductor by STEM-EELS spectrum imaging2011

    • Author(s)
      T.Tohei, T.Mizoguchi, H.Hiamatsu, Y.Kamihara, H.Hosono, Y.Ikuhara
    • Organizer
      The Fifth International Conference on the Science and Technology for Advanced Ceramics (STAC-5)
    • Place of Presentation
      Yokohama(ポスター)
    • Year and Date
      2011-06-22
  • [Presentation] 内殻励起スペクトル(ELNES及びXANES)と第一原理計算による機能材料の原子・電子構造解析2011

    • Author(s)
      溝口照康
    • Organizer
      アクセルリスユーザーフォーラム
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2011-06-16
  • [Presentation] Overlap Population for ELNES calculation : Beyond Reproduction2011

    • Author(s)
      T.Mizoguchi
    • Organizer
      IUMAS-V 2011
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2011-05-24
  • [Presentation] Theoretical Calculation of ELNES : One-particle and Multi-particle Calculations2011

    • Author(s)
      T.Mizoguchi, H.Ikeno, I.Tanaka
    • Organizer
      IUMAS-V 2011
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2011-05-24
  • [Presentation] Atom-by-atom Analysis of Functional Ceramics Interfaces2011

    • Author(s)
      Z.C.Wang, M.Saito, S.Tsukimoto, Y.Ikuhara
    • Organizer
      The 3rd International Conference on Heterogeneous Materials Mechanics (ICHMM 2011)
    • Place of Presentation
      Shanghai, China(招待講演)
    • Year and Date
      2011-05-24
  • [Presentation] Atomic-scale investigations of nano-scale regions in electroceramics through scanning transmission electron microscopy2011

    • Author(s)
      Y.Sato, T.Mizoguchi, N.Shibata, T.Yamamoto, T.Hirayama, Y.Ikuhara
    • Organizer
      5th Meeting of the International Union of Microbeam Analysis Societies (IUMAS-V)
    • Place of Presentation
      Seoul, Korea(招待講演)
    • Year and Date
      2011-05-23
  • [Presentation] Atomic structure characterizatino of CeO2 Σ3[110]/(111) and Σ5[001]/(210) grain boundaries using STEM and EELS2011

    • Author(s)
      B.Feng, H.Hojo, T.Mizoguchi, H.Ohta, N.Shibata, Y.Sato, T.Yamamoto, Y.Ikuhara
    • Organizer
      5th International Union of Microbeam Analysis Societies (IUMAS-V)
    • Place of Presentation
      Seoul, Korea(oral)
    • Year and Date
      2011-05-23
  • [Presentation] 内殻励起スペクトル(ELNES/XANES)の第一原理計算2011

    • Author(s)
      溝口照康
    • Organizer
      情報機構セミナー
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2011-05-19
  • [Presentation] Yttrium segregation behavior and mechanism at CSL grain boundaries in α-Al2O32011

    • Author(s)
      Taikhyun Kweon, Shinya Azuma, Nobuaki Takahashi, Naoya Shibata, Yukio Sato, Teruyasu Mizoguchi, Takahisa Yamamoto, Yuichi Ikuhara
    • Organizer
      E-MRS 2011 Spring Meeting
    • Place of Presentation
      Nice, France(Oral)
    • Year and Date
      2011-05-11
  • [Presentation] Atomic Structures and Segregated Atoms in Ceramic Interfaces2011

    • Author(s)
      Y.Ikuhara
    • Organizer
      Materials Science Seminar, TU Darmstadt
    • Place of Presentation
      Darmstadt, Germany(招待講演)
    • Year and Date
      2011-04-04

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Published: 2013-06-26  

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