Tohei Tetsuya 藤平哲也

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TOHEI Tetsuya 藤平哲也

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Researcher Number	00463878
Other IDs
Affiliation (Current)	2025: 大阪大学, 大学院基礎工学研究科, 准教授
Affiliation (based on the past Project Information) *help	2023 – 2024: 大阪大学, 大学院基礎工学研究科, 准教授 2019 – 2021: 大阪大学, 基礎工学研究科, 准教授 2017: 大阪大学, 基礎工学研究科, 准教授 2016: 東京大学, 大学院工学系研究科(工学部), 助教 2012 – 2015: 東京大学, 工学(系)研究科(研究院), 助教
Review Section/Research Field	Principal Investigator Medium-sized Section 26:Materials engineering and related fields / Basic Section 26020:Inorganic materials and properties-related / Basic Section 21050:Electric and electronic materials-related / Physical properties of metals Except Principal Investigator Inorganic materials/Physical properties / Science and Engineering
Keywords	Principal Investigator 第一原理計算 / 電子顕微鏡その場観察 / 人工シナプス / 酸化物メモリスタ / 透過型電子顕微鏡 / 酸化物 / 磁性体 / エントロピー / 半導体 / TEMその場観察 … More / 点欠陥 / ルチル型TiO2 / 酸化物半導体 / 抵抗変化現象 / 酸化チタン / 透過型電子顕微鏡その場観察 / YMnO3 / DyInO3 / 複合酸化物 / ドメイン / ドメイン構造 / 強誘電体 / 走査透過型電子顕微鏡 … More Except Principal Investigator 透過型電子顕微鏡 / 収差補正走査透過電子顕微鏡 / 収差補正等差透過型電子顕微鏡 / 電子顕微鏡 / 構造ユニット / 粒界・界面 / 結晶構造・組織制御 / 収差補正透過型電子顕微鏡 / 粒界拡散 / 粒界偏析 / セラミックス / バイクリスタル / 第一原理計算 / 結晶粒界 / ナノ / 界面・表面 / 格子欠陥 / その場観察 / 界面、粒界、表面、転位 / STEM / 機能元素 Less

磁性体のエントロピー勾配に伴う新規磁気起電力効果の探索Principal Investigator
- Principal Investigator
  
  藤平哲也
- Project Period (FY)
  2024 – 2025
- Research Category
  
  Grant-in-Aid for Challenging Research (Exploratory)
- Review Section
  
  Medium-sized Section 26:Materials engineering and related fields
- Research Institution
  Osaka University
Development of plastic functionality electronic devices based on elementary processes of point defects fluid and condensationPrincipal Investigator
- Principal Investigator
  
  藤平哲也
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 26020:Inorganic materials and properties-related
- Research Institution
  Osaka University
TEM operand and first principles analysis of mechanisms of time-dependent oxide memristor propertiesPrincipal Investigator
- Principal Investigator
  
  Tohei Tetsuya
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 21050:Electric and electronic materials-related
- Research Institution
  Osaka University
Interfacial structural unit design for advanced stractural and functional materials
- Principal Investigator
  
  幾原雄一
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Inorganic materials/Physical properties
- Research Institution
  The University of Tokyo
Frontier explorations in nanodopant analysis
- Principal Investigator
  
  Shibata Naoya
- Project Period (FY)
  2013 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  The University of Tokyo
Atomistic scale analysis of microstructures in unconventional ferroelectric oxidesPrincipal Investigator
- Principal Investigator
  
  TOHEI Tetsuya
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Physical properties of metals
- Research Institution
  The University of Tokyo

All 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 Other

All Journal Article Presentation Patent

[Journal Article] Versatile Functionality of Four-Terminal TiO2-x Memristive Devices as Artificial Synapses for Neuromorphic Computing2022
- Author(s)
  Ryotaro Miyake, Zenya Nagata, Kenta Adachi, Yusuke Hayashi, Tetsuya Tohei, Akira Sakai
- Journal Title
  
  ACS Applied Electronic Materials
  
  Volume: - Issue: 5 Pages: 2326-2336
- DOI
  10.1021/acsaelm.2c00161
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K04468, KAKENHI-PROJECT-19K05525, KAKENHI-PROJECT-20H00248, KAKENHI-PROJECT-21K18723
[Journal Article] Fabrication of GaOx based crossbar array memristive devices and their resistive switching properties2020
- Author(s)
  M. Joko, Y. Hayashi, T. Tohei, A. Sakai
- Journal Title
  
  Jpn. J. Appl. Phys.
  
  Volume: 59 Issue: SM Pages: SMMC03-SMMC03
- DOI
  10.35848/1347-4065/ab8be6
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04468, KAKENHI-PROJECT-20H00248
[Journal Article] Gate Tuning of Synaptic Functions Based on Oxygen Vacancy Distribution Control in Four-Terminal TiO2－x Memristive Devices2019
- Author(s)
  Z. Nagata, T. Shimizu, T. Isaka, T. Tohei*, N. Ikarashi, A. Sakai*
- Journal Title
  
  Scientific Reports
  
  Volume: 9 Issue: 1
- DOI
  10.1038/s41598-019-46192-x
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K04468, KAKENHI-PROJECT-17H03236
[Journal Article] Leakage current analysis for dislocations in Na-flux GaN bulk single crystals by conductive atomic force microscopy2018
- Author(s)
  Hamachi T.、Takeuchi S.、Tohei T.、Imanishi M.、Imade M.、Mori Y.、Sakai A.
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 123 Issue: 16 Pages: 161417-161417
- DOI
  10.1063/1.5011345
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-16H06423, KAKENHI-PLANNED-25106003
[Journal Article] Microstructural analysis in the depth direction of a heteroepitaxial AlN thick film grown on a trench-patterned template by nanobeam X-ray diffraction2018
- Author(s)
  Shida K.、Takeuchi S.、Tohei T.、Miyake H.、Hiramatsu K.、Sumitani K.、Imai Y.、Kimura S.、Sakai A.
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 123 Issue: 16 Pages: 161563-161563
- DOI
  10.1063/1.5011291
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-16H06423, KAKENHI-PLANNED-25106003, KAKENHI-PLANNED-16H06415
[Journal Article] Leakage current analysis in GaN-on-GaN p-n diode by conductive atomic force microscopy2018
- Author(s)
  S. Mizutani, T. Hamachi, S. Takeuchi, T. Tohei, T. Kachi, S. Sarayama, and A. Sakai
- Journal Title
  
  Proceedings for The 21th SANKEN International The 16th SANKEN Nanotechnology Symposium, January 16 - 17, 2018, Osaka, Japan.
  
  Volume: -
- Data Source
  KAKENHI-PLANNED-25106003
[Journal Article] Analysis of Ti valence States in resistive switching regions of a rutile TiO2-x four-terminal memristive devices2018
- Author(s)
  K. Yamaguchi, S. Takeuchi, T. Tohei, N. Ikarashi, and A. Sakai
- Journal Title
  
  Jpn. J. Appl. Phys.
  
  Volume: -
- NAID
  210000149225
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-25106003
[Journal Article] Nanobeam X-ray diffraction analysis of lattice deformation in thin nano-indented single crystal Si wafers2018
- Author(s)
  Y. Mametsuka, S. Takeuchi, T. Tohei, K. Sumitani, Y. Imai, S. Kimura, J. Fujise, T. Ono, and A. Sakai
- Journal Title
  
  Proceedings for The 21th SANKEN International The 16th SANKEN Nanotechnology Symposium
  
  Volume: -
- Data Source
  KAKENHI-PLANNED-25106003
[Journal Article] TEM Microstructure Analysis of Resistive Switching Regions in Rutile TiO2 Single Crystal Memristors2017
- Author(s)
  T. Tohei, H. Murakami, K. Yamaguchi, T. Shimizu, S. Takeuchi, and A. Sakai
- Journal Title
  
  Proceedings for The 3rd East-Asia Microscopy Conference (EAMC3)
  
  Volume: -
- Data Source
  KAKENHI-PLANNED-25106003
[Journal Article] Analysis of Ti valence state in resistive switching region of rutile TiO2-x four-terminal memristive device2017
- Author(s)
  K. Yamaguchi, S. Takeuchi, T. Tohei, N. Ikarashi, and A. Sakai
- Journal Title
  
  Proceedings for International Workshop on Dielectric Thin Films for Future Electron Devices: Science and Technology (IWDTF 2017)
  
  Volume: -
- NAID
  210000149225
- Data Source
  KAKENHI-PLANNED-25106003
[Journal Article] Inversion Domain Boundaries in Mn and Al Dual Doped ZnO: Atomic Structure and Electronic Properties2017
- Author(s)
  Joshua Hoemke, Eita Tochigi, Tetsuya Tohei, Hidehiro Yoshida, Naoya Shibata, Yuichi Ikuhara, Yoshio Sakka
- Journal Title
  
  Journal of the American Ceramic Society
  
  Volume: 100 Issue: 9 Pages: 4252-4262
- DOI
  10.1111/jace.14931
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-25106003, KAKENHI-PLANNED-25106006, KAKENHI-PROJECT-17H01316, KAKENHI-PROJECT-17H06094
[Journal Article] Valence state analysis of Ti in resistive switching region of rutile TiO2-x single crystals memristor2017
- Author(s)
  K. Yamaguchi, S. Takeuchi, T. Shimizu, T. Tohei, N. Ikarashi, and A. Sakai
- Journal Title
  
  Proceedings for International Conference on Materials and Systems for Sustainability (ICMaSS 2017)
  
  Volume: -
- Data Source
  KAKENHI-PLANNED-25106003
[Journal Article] Resistive switching characteristics of four-terminal TiO2-x single crystal memristive device2017
- Author(s)
  T. Shimizu, S. Takeuchi, T. Tohei, and A. Sakai
- Journal Title
  
  Proceedings for International Workshop on Dielectric Thin Films for Future Electron Devices: Science and Technology (IWDTF 2017)
  
  Volume: -
- Data Source
  KAKENHI-PLANNED-25106003
[Journal Article] Thermoelectric phase diagram of the SrTiO3-SrNbO3 solid solution system2017
- Author(s)
  Yuqiao Zhang, Bin Feng, Hiroyuki Hayashi, Tetsuya Tohei, Isao Tanaka, Yuichi Ikuhara, Hiromichi Ohta
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 121 Issue: 18 Pages: 185102-185102
- DOI
  10.1063/1.4983359
- NAID
  120006463557
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-25106003, KAKENHI-PROJECT-17H06094
[Journal Article] Ferroelectric domains and phase evolution in (Fe:) KTa1-xNbxO3 crystals2017
- Author(s)
  H. Y. Zhao, K. Cai, Z. R. Fan, Z. D. Huang, Z. B. Ma, T. T. Jia, H. Kimura, Y. G. Yang, T. Matsumoto, T. S. Tohei, N. Shibata, Y. Ikuhara
- Journal Title
  
  Applied Surface Science
  
  Volume: 413 Pages: 1-6
- DOI
  10.1016/j.apsusc.2017.04.003
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-25106003, KAKENHI-PROJECT-17H01316, KAKENHI-PROJECT-17H06094
[Journal Article] Atomic structures of a liquid-phase bonded metal / nitride heterointerface2016
- Author(s)
  A. Kumamoto, N. Shibata, K. Nayuki, T. Tohei, N. Terasaki, Y. Nagatomo, T. Nagase, K. Akiyama, Y. Kuromitsu and Y. Ikuhara
- Journal Title
  
  Scientific Reports
  
  Volume: 6 Issue: 1 Pages: 22936-22936
- DOI
  10.1038/srep22936
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-15H02290, KAKENHI-PROJECT-26289234, KAKENHI-PLANNED-25106003
[Journal Article] First principles calculation of thermal expansion coefficients of pure and Cr doped alpha-alumina crystals2016
- Author(s)
  Tetsuya Tohei, Yuito Watanabe, Hak-Sung Lee, Yuichi Ikuhara
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 120 Issue: 14 Pages: 142106-142106
- DOI
  10.1063/1.4961720
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-25106003, KAKENHI-PROJECT-15H02290
[Journal Article] First principles study of oxygen diffusion in a alpha-alumina {10-11} twin grain boundary2015
- Author(s)
  T. Tohei, Y. Watanabe, N. Takahashi, T. Nakagawa, N. Shibata and Y. Ikuhara
- Journal Title
  
  Philosophical Magazine
  
  Volume: 95 Issue: 35 Pages: 3985-3999
- DOI
  10.1080/14786435.2015.1110257
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H02290, KAKENHI-PROJECT-26289234, KAKENHI-PLANNED-25106003
[Journal Article] First Principles Calculation of Thermal Expansion of Carbon and Boron Nitrides Based on Quasi-Harmonic Approximation2015
- Author(s)
  T. Tohei, HS. Lee, and Y. Ikuhara
- Journal Title
  
  MATERIALS TRANSACTIONS
  
  Volume: 56 Issue: 9 Pages: 1452-1456
- DOI
  10.2320/matertrans.MA201574
- NAID
  130005094792
- ISSN
  1345-9678, 1347-5320
- Language
  English
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02290
[Journal Article] First Principles Study on Vacancy Formation and Diffusion Behaviors in a-Al2O3 Grain Boundary2015
- Author(s)
  T. Tohei, Y. Watanabe, N. Shibata, Y. Ikuhara
- Journal Title
  
  AMTC Letters
  
  Volume: 4 Pages: 134-135
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24760533
[Journal Article] Fluorine in Shark Teeth: Its Direct Atomic-Resolution Imaging and Strengthening Function2014
- Author(s)
  Chen, Chunlin; Wang, Zhongchang; Saito, Mitsuhiro; Tohei, Tetsuya; Takano, Yoshiro; Ikuhara, Yuichi
- Journal Title
  
  Angewandte Chemie
  
  Volume: 126 Issue: 6 Pages: 1569-1573
- DOI
  10.1002/anie.201307689
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24390408, KAKENHI-PROJECT-24760532, KAKENHI-PROJECT-24760533, KAKENHI-PLANNED-25106003
[Journal Article] Determination of Exact Positions of Individual Tungsten Atoms in Unisize Tungsten Oxide Clusters Supported on Carbon Substrate by HAADF-STEM Observation2014
- Author(s)
  H. Yasumatsu, T. Tohei, Y. Ikuhara
- Journal Title
  
  J. Phys. Chem. C
  
  Volume: 118 Issue: 3 Pages: 1706-1711
- DOI
  10.1021/jp4083745
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24760533, KAKENHI-PLANNED-25106003
[Journal Article] Phase Boundary Structure of LixFePO4 Cathode Material Revealed by Atomic-Resolution Scanning Transmission Electron Microscopy2014
- Author(s)
  A. Nakamura, S. Furutsuki, S. Nishimura, T. Tohei, Y. Sato, N. Shibata, A. Yamada, and Y. Ikuhara
- Journal Title
  
  Chemistry of Materials
  
  Volume: 26 Issue: 21 Pages: 6178-6184
- DOI
  10.1021/cm5024986
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-13J07879, KAKENHI-PROJECT-23245042, KAKENHI-PROJECT-24760533, KAKENHI-PROJECT-26289234, KAKENHI-PLANNED-25106003
[Journal Article] Large magnetoelectric coupling in magnetically short-range ordered Bi5Ti3FeO15 film2014
- Author(s)
  H. Zhao, H. Kimura, Z. Cheng, M. Osada, J. Wang, X. Wang, S. Dou, Y. Liu, J. Yu, T. Matsumoto, T. Tohei, N. Shibata, Y. Ikuhara
- Journal Title
  
  Scientific Reports
  
  Volume: 4 Issue: 1 Pages: 5255-1
- DOI
  10.1038/srep05255
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-24760533, KAKENHI-PROJECT-25289232, KAKENHI-PROJECT-26289234, KAKENHI-PLANNED-25106003
[Journal Article] A New Layered Iron Arsenide Superconductor: (Ca,Pr)FeAs22014
- Author(s)
  H. Yakita, H. Ogino, T. Okada, A. Yamamoto, K. Kishio, T. Tohei, Y. Ikuhara, Y. Gotoh, H. Fujihisa, K. Kataoka
- Journal Title
  
  J. Am. Chem. Soc.
  
  Volume: 136 Issue: 3 Pages: 846-849
- DOI
  10.1021/ja410845b
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24760533, KAKENHI-PLANNED-25106003
[Journal Article] Synthesis of String-Bean-Like Anisotropic Titania Nanoparticles with Basic Amino Acids2014
- Author(s)
  Junzheng Wang, John K. Katahara, Akihito Kumamoto, Tetsuya Tohei, Ayae Sugawara-Narutaki, Atsushi Shimojima, Tatsuya Okubo
- Journal Title
  
  RSC Adv
  
  Volume: 4 Issue: 18 Pages: 9233-9234
- DOI
  10.1039/c3ra47170e
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23350098, KAKENHI-PROJECT-24760533, KAKENHI-PLANNED-25106003, KAKENHI-PUBLICLY-25107710
[Journal Article] First Principles Study on Vacancy Formation and Diffusion Behaviors in a-Al2O3 Grain Boundary2014
- Author(s)
  Tetsuya Tohei, Yuito Watanabe, Naoya Shibata, Yuichi Ikuhara
- Journal Title
  
  AMTC Letters
  
  Volume: 4 Pages: 134-135
- Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PLANNED-25106003
[Journal Article] Titanium enrichment and strontium depletion near edge dislocation in strontium titanate [001]/(110) low angle tilt grain boundary2014
- Author(s)
  K. Takehara, Y. Sato, T. Tohei, N. Shibata, and Y. Ikuhara
- Journal Title
  
  Journal of Materials Science
  
  Volume: 49 Issue: 11 Pages: 3962-3969
- DOI
  10.1007/s10853-014-8034-5
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23760632, KAKENHI-PROJECT-24760533, KAKENHI-PLANNED-25106003, KAKENHI-PROJECT-26289234
[Journal Article] Double Columnar Structure with a Nanogradient Composite for Increased Oxygen Diffusivity and Reduction Activity2014
- Author(s)
  Young-Wan Ju, Junji Hyodo, Atsushi Inoishi, Shintaro Ida, Tetsuya Tohei, Yeong-Gi So, Yuichi Ikuhara and Tatsumi Ishihara
- Journal Title
  
  Advanced Energy Materials
  
  Volume: 4 Issue: 17
- DOI
  10.1002/aenm.201400783
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24226016, KAKENHI-PROJECT-24760533
[Journal Article] Multivariate statistical characterization of charged and uncharged domain walls in multiferroic hexagonal YMnO3 single crystal visualized by a spherical aberration-corrected STEM2013
- Author(s)
  T. Matsumoto, R. Ishikawa, T. Tohei, H. Kimura, Q. Yao, H. Zhao, X. Wang, D. Chen, Z. Cheng, N. Shibata and Y. Ikuhara
- Journal Title
  
  Nano Lett.
  
  Volume: 13 Issue: 10 Pages: 4594-4601
- DOI
  10.1021/nl402158c
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23686093, KAKENHI-PROJECT-24760533, KAKENHI-PLANNED-25106003
[Journal Article] Chain-like nanostructures from anisotropic self-assembly of semiconducting metaloxide nanoparticles with block copolymer2012
- Author(s)
  J. Wang, S. Winardi, A. Sugawara-Narutaki, A. Kumamoto, T. Tohei, A. Shimojima, and *T. Okubo
- Journal Title
  
  Chemistry Communication
  
  Volume: 48 Issue: 90 Pages: 11115-11117
- DOI
  10.1039/c2cc36210d
- Peer Reviewed
- Data Source
  KAKENHI-ORGANIZER-19053003, KAKENHI-PROJECT-23350098, KAKENHI-PROJECT-24760533, KAKENHI-PLANNED-22107005
[Journal Article] First principles calculation of dopant solution energy in HfO2 polymorphs2012
- Author(s)
  M. Saitoh, T. Mizoguchi, T. Tohei, Y Ikuhara
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 112[8] Issue: 8 Pages: 84514-84514
- DOI
  10.1063/1.4755797
- Peer Reviewed
- Data Source
  KAKENHI-ORGANIZER-19053003, KAKENHI-PROJECT-23656395, KAKENHI-PROJECT-24760533
[Journal Article] Nanowire of hexagonal gallium oxynitride: Direct observation of its stacking disorder and its long nanowire growth2012
- Author(s)
  Y. Masubuchi, R. Yamaoka, T. Tohei, T. Mizoguchi, Y. Ikuhara, S. Kikkawa
- Journal Title
  
  Journal of The European Ceramic Society
  
  Volume: 32(9 SI) Issue: 9 Pages: 1989-1993
- DOI
  10.1016/j.jeurceramsoc.2011.10.038
- NAID
  120005946650
- Peer Reviewed
- Data Source
  KAKENHI-ORGANIZER-19053003, KAKENHI-PUBLICLY-22015001, KAKENHI-PROJECT-23655188, KAKENHI-PROJECT-23656395, KAKENHI-PROJECT-24760533
[Journal Article] Observation of Microstructures in Doped LaMOX Compounds by Atomic Scale STEM Imaging2012
- Author(s)
  T. Tohei, T. Mizoguchi, H. Hiramatsu, Y. Kamihara, H. Hosono, and Y. Ikuhara
- Journal Title
  
  AMTC Letters
  
  Volume: 3 Pages: 26-27
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24760533
[Patent] メモリスタおよびそれを備えたアレイシステム2019
- Inventor(s)
  林侑介，藤平哲也，酒井朗
- Industrial Property Rights Holder
  林侑介，藤平哲也，酒井朗
- Industrial Property Rights Type
  特許
- Filing Date
  2019
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] GaOxメモリスタの抵抗スイッチング特性評価2022
- Author(s)
  佐藤健人、林侑介、藤平哲也、酒井朗
- Organizer
  第69回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] アモルファスGaOxを用いたクロスバーアレイメモリスタの抵抗変化特性2022
- Author(s)
  正岡直樹, 林侑介, 藤平哲也, 酒井朗
- Organizer
  第69回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 平面型TiO2-xメモリスタ素子における抵抗変化領域のその場TEM観察2022
- Author(s)
  谷口奈穂、藤平哲也、林侑介、酒井朗
- Organizer
  第69回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 平面型微細TiO2-xメモリスタ素子における抵抗変化領域のその場TEM観察2021
- Author(s)
  谷口奈穂、藤平哲也、林侑介、酒井朗
- Organizer
  日本顕微鏡学会第77回学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 4端子平面型アモルファスGaOxメモリスタ素子の開発と抵抗変化特性評価2021
- Author(s)
  池内太志，林侑介，藤平哲也，酒井朗
- Organizer
  第68回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Temperature-Dependent Resistive Switching Properties of GaOx Memristors up to 600 K2021
- Author(s)
  K. Sato, Y. Hayashi, T. Tohei, A. Sakai
- Organizer
  2021 International Workshop on Dielectric Thin Films for future electron devices (IWDTF2021)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Heterosynaptic Property Demonstrated with Planar Four-Terminal Amorphous GaOx Memristive Devices2021
- Author(s)
  T. Ikeuchi, Y. Hayashi, T. Tohei, A. Sakai
- Organizer
  2021 International Conference on Solid State Devices and Materials (SSDM2021)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Pavlovian conditioning implemented in four-terminal TiO2-x memristive devices2021
- Author(s)
  R. Miyake, K. Adachi, Y. Hayashi, T. Tohei, A. Sakai
- Organizer
  4th International Conference on Memristive Materials, Devices & Systems (MEMRISYS 2021)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Habituation and sensitization properties mimicked in four-terminal TiO2-x memristive devices2021
- Author(s)
  K. Adachi, Y. Hayashi, T. Tohei, A. Sakai
- Organizer
  4th International Conference on Memristive Materials, Devices & Systems (MEMRISYS 2021)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 4端子平面型TiO2-xメモリスタ素子におけるゲート制御に基づくシナプス特性の変調2021
- Author(s)
  安達健太，林侑介，藤平哲也，酒井朗
- Organizer
  第68回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] ルチル型TiO2-x平面型メモリスタ素子における抵抗変化領域のその場TEM観察2021
- Author(s)
  谷口奈穂，藤平哲也，上甲守治，林侑介，酒井朗
- Organizer
  応用物理学会関西支部2020年度第1回+第2回合同講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 酸化物四端子型メモリスタの結晶微細構造と電気特性2021
- Author(s)
  藤平哲也，三宅亮太郎，谷口奈穂，上甲守治，林侑介，酒井朗
- Organizer
  第68回応用物理学会春季学術講演会
- Invited
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 第一原理計算手法に基づく外部電場下におけるルチル型TiO2中の酸素空孔挙動の解析2021
- Author(s)
  二宮雅輝、藤平哲也、林侑介、酒井朗
- Organizer
  第82回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Crystalline microstructure and electric property of rutile TiO2 single crystal memristor2021
- Author(s)
  T. Tohei, N. Taniguchi, T. Isaka, R. Miyake, M. Joko, Y. Hayashi, N. Ikarashi, A. Sakai
- Organizer
  International Conference on Materials and Systems for Sustainability 2021 (ICMaSS2021)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] アモルファス酸化ガリウムを用いたメモリスタの抵抗変化特性およびシナプス特性2020
- Author(s)
  上甲守治, 池内太志, 林侑介, 藤平哲也, 酒井朗
- Organizer
  第81回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 複合顕微鏡アプローチによる機能性結晶のマルチスケール構造・物性解析2020
- Author(s)
  藤平哲也
- Organizer
  令和2年日本材料学会半導体エレクトロニクス部門委員会第1回特別研究会
- Invited
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 4端子平面型TiO2-xメモリスタ素子におけるドナーイオン分布2次元制御に基づくパブロフ型条件付けの実装2020
- Author(s)
  三宅亮太郎，林侑介, 藤平哲也，酒井朗
- Organizer
  第67回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 4端子平面型TiO2-x メモリスタ素子における酸素空孔分布2次元制御に基づくSTP・LTP特性の実装2020
- Author(s)
  安達健太, 酒井朗, 藤平哲也, 林侑介, 三宅亮太郎
- Organizer
  第81回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 第一原理計算による外部電場下におけるルチル型TiO2中の酸素空孔挙動解析2020
- Author(s)
  井阪健，藤平哲也，林侑介, 酒井朗
- Organizer
  第67回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Electric and Microstructural Analysis of Rutile TiO2 Single Crystal Memristors2019
- Author(s)
  T. Tohei
- Organizer
  Joint 5th International Symposium on Frontiers in Materials Science & 3rd International Symposium on Nano-materials, Technology and Applications (FMS-NANOMATA 2019)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Oxygen vacancy distribution control for resistive switching of epitaxial TiO2-x thin films in four-terminal memristive devices2019
- Author(s)
  R. Miyake, Z. Nagata, T. Tohei, and A. Sakai
- Organizer
  2019 International Conference on Solid State Devices and Materials (SSDM2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Fabrication of GaOx Based Crossbar Array Memristive Devices and Their Resistive Switching Properties2019
- Author(s)
  M. Joko, Y. Hayashi, T. Tohei, A. Sakai
- Organizer
  2019 International Workshop on Dielectric Thin Films for Future Electron Devices: Science and Technology (IWDTF2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] GaOxを用いたクロスバーアレイメモリスタの開発と抵抗変化特性2019
- Author(s)
  上甲守治，林侑介, 藤平哲也, 酒井朗
- Organizer
  第80回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] Atomic and electronic structure analysis of resistive switching regions in rutile TiO2-x based four-terminal memristive devices2019
- Author(s)
  T. Isaka, T. Tohei, T. Shimizu, S. Takeuchi, N. Ikarashi, A. Sakai
- Organizer
  International Conference on Materials and Systems for Sustainability 2019 (ICMaSS2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] ４端子TiO2-x薄膜メモリスタ素子によるシナプス特性の実装2019
- Author(s)
  三宅亮太郎，林侑介, 藤平哲也，酒井朗
- Organizer
  第80回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-19K04468
[Presentation] 改良型NaフラックスGaN単結晶内の単独転位における漏れ電流特性評価2018
- Author(s)
  濱地威明, 竹内正太郎, 藤平哲也, 今西正幸, 今出完, 森勇介, 酒井朗
- Organizer
  第65回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] 窒化物半導体中の格子欠陥が生み出す特異構造の3次元解析2018
- Author(s)
  酒井朗, 志田和己, 竹内正太郎, 藤平哲也, 今井康彦, 木村滋
- Organizer
  第65回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] ナノビームX線回折法を用いた組成傾斜層を有する高Ge組成SiGe膜の結晶深さ方向格子面微細構造トモグラフィック解析2018
- Author(s)
  志田和己, 竹内正太郎, 藤平哲也, 今井康彦, 木村滋, Andreas Schulze, Matty Caymax, 酒井朗
- Organizer
  第65回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] 先端材料設計を目指した材料・デバイスの原子レベル解析2018
- Author(s)
  藤平哲也
- Organizer
  日本セラミックス協会2017年度ガラス表面・分析研究討論会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] 酸素空孔分布制御型4端子メモリスタ素子における抵抗変化機構の有限要素法シミュレーション2018
- Author(s)
  永田善也, 清水拓磨, 竹内正太郎, 藤平哲也, 酒井朗
- Organizer
  第65回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] 4端子メモリスタ素子における抵抗変化特性精密制御2018
- Author(s)
  志田和己, 竹内正太郎, 藤平哲也, 今井康彦, 木村滋, Andreas Schulze, Matty Caymax, 酒井朗
- Organizer
  第65回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] ルチル型TiO2単結晶微細メモリスタ素子における抵抗変化領域のTEM微細構造解析2017
- Author(s)
  山口賢吾, 村上弘弥, 清水拓磨, 竹内正太郎, 藤平哲也, 酒井朗
- Organizer
  第78回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] Al-Sn添加ZnOにおける反転ドメイン構造の形成と選択的偏析現象2017
- Author(s)
  栃木栄太, ヘムキジョシュア, 藤平哲也, 吉田英弘, 目義雄, 柴田直哉, 幾原雄一
- Organizer
  日本金属学会 2017年秋期(第161回)講演大会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] 4端子TiO2単結晶構造メモリスタの抵抗変化特性2017
- Author(s)
  清水拓磨, 竹内正太郎, 藤平哲也, 酒井朗
- Organizer
  第78回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] TEMナノインデンテーション法とSTEM法によるアルミナ粒界破面の原子構造解析2016
- Author(s)
  栃木栄太, 石原聡仁, 近藤隼, 藤平哲也, 柴田直哉, 幾原雄一
- Organizer
  日本顕微鏡学会第72回学術講演会
- Place of Presentation
  仙台国際センター、宮城県
- Year and Date
  2016-06-14
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] 単原子層偏析を伴う金属/セラミックス界面の原子分解能STEM-EDSマッピング2016
- Author(s)
  熊本明仁, 柴田直哉, 名雪桂一郎, 藤平哲也, 寺崎伸幸, 長友義幸, 長瀬敏之, 秋山和裕, 黒光祥郎, 幾原雄一
- Organizer
  日本顕微鏡学会第72回学術講演会
- Place of Presentation
  仙台国際センター、宮城県
- Year and Date
  2016-06-15
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] アルミナ結晶の熱膨張係数の第一原理計算2016
- Author(s)
  藤平哲也，渡邉唯人，幾原雄一
- Organizer
  日本セラミックス協会2016年年会
- Place of Presentation
  早稲田大学西早稲田キャンパス，東京都新宿区
- Year and Date
  2016-03-15
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] Al合金と極性結晶AlNの溶融接合界面における原子分解能構造解析2016
- Author(s)
  熊本明仁, 柴田直哉, 名雪桂一郎, 藤平哲也, 寺崎伸幸, 長友義幸, 長瀬敏之, 秋山和裕, 黒光祥郎, 幾原雄一
- Organizer
  日本金属学会秋期講演大会
- Place of Presentation
  大阪大学豊中キャンパス, 大阪府
- Year and Date
  2016-09-22
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] 単原子層偏析を伴う金属/セラミックス界面の原子分解能STEM-EDSマッピング2016
- Author(s)
  熊本明仁, 柴田直哉, 名雪桂一郎, 藤平哲也, 寺崎伸幸, 長友義幸, 長瀬敏之, 秋山和裕, 黒光祥郎, 幾原雄一
- Organizer
  日本顕微鏡学会第72回学術講演会
- Place of Presentation
  仙台国際センター, 宮城県
- Year and Date
  2016-06-15
- Invited
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] TEMナノインデンテーション法とSTEM法によるアルミナ粒界破面の原子構造解析2016
- Author(s)
  栃木栄太, 石原聡仁, 近藤隼, 藤平哲也, 柴田直哉, 幾原雄一
- Organizer
  日本顕微鏡学会第72回学術講演会
- Place of Presentation
  仙台国際センター, 宮城県
- Year and Date
  2016-06-14
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] Atomic scale STEM analysis of structure and dopant effects on grain boundary in oxide ceramics2016
- Author(s)
  T. Tohei, M. Sakai, N. Shibata, and Y. Ikuhara
- Organizer
  ICACC16
- Place of Presentation
  Daytona Beach, FL, USA
- Year and Date
  2016-01-26
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] Al合金と極性結晶AlNの溶融接合界面における原子分解能構造解析2016
- Author(s)
  熊本明仁, 柴田直哉, 名雪桂一郎, 藤平哲也, 寺崎伸幸, 長友義幸, 長瀬敏之, 秋山和裕, 黒光祥郎, 幾原雄一
- Organizer
  日本金属学会秋期大会
- Place of Presentation
  大阪大学豊中キャンパス、豊中市、大阪府
- Year and Date
  2016-09-22
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] First Principles Study of grain boundary diffusion in a-Al2O32015
- Author(s)
  Tetsuya Tohei, Yuito Watanabe, Naoya Shibata, Yuichi Ikuhara
- Organizer
  11th International Conference on Ceramic Materials and Components for Energy and Environmental Applications (11th CMCEE)
- Place of Presentation
  Hyatt Regency Vancouver, Vancouver, Canada
- Year and Date
  2015-06-16
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] アルミナΣ11粒界における原子拡散挙動の第一原理計算2015
- Author(s)
  藤平哲也, 渡邊唯人, 柴田直哉, 幾原雄一
- Organizer
  日本セラミックス協会2015年年会
- Place of Presentation
  岡山大学（岡山）
- Year and Date
  2015-03-19
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] アルミナ双結晶の粒界偏析挙動に対する不純物濃度の影響2015
- Author(s)
  藤平哲也，酒井正裕，柴田直哉，幾原雄一
- Organizer
  日本セラミックス協会第28回秋季シンポジウム
- Place of Presentation
  富山大学五福キャンパス, 富山県富山市
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] First principles study of oxygen diffusion behavior in -Al2O3 grain boundary2015
- Author(s)
  T. Tohei, Y. Watanabe, N. Shibata, Y. Ikuhara
- Organizer
  The 11th Pacific Rim Conference of Ceramic Societies
- Place of Presentation
  Jeju, Korea
- Year and Date
  2015-09-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] Atomic scale STEM analysis of structure and dopant effects on a-alumina grain boundary2015
- Author(s)
  T. Tohei, M. Sakai, N. Shibata, and Y. Ikuhara
- Organizer
  The 2nd East-Asia Microscopy Conference
- Place of Presentation
  The Himeji Chamber of Commerce and Industry, Himeji, Hyogo, Japan
- Year and Date
  2015-11-27
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] Phonon and related properties of ceramics materials from first principles calculations2015
- Author(s)
  T. Tohei, Y. Watanabe, N. Shibata, Y. Ikuhara
- Organizer
  2nd International symposium on Frontiers in Materials Science (FMS2015)
- Place of Presentation
  Waseda University, Shinjuku-ku, Tokyo, Japan
- Year and Date
  2015-11-19
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] アルミナΣ11粒界における原子拡散挙動の第一原理計算2015
- Author(s)
  藤平哲也, 渡邊唯人, 柴田直哉, 幾原雄一
- Organizer
  日本セラミックス協会2015年年会
- Place of Presentation
  岡山大学、岡山県、岡山市
- Year and Date
  2015-03-19
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] First principles calculation of oxygen grain boundary diffusion in alpha-Al2O32015
- Author(s)
  T. Tohei, Y. Watanabe, N. Shibata, and Y. Ikuhara
- Organizer
  第25回日本MRS年次大会
- Place of Presentation
  横浜情報文化センター，神奈川県横浜市
- Year and Date
  2015-12-09
- Data Source
  KAKENHI-PROJECT-15H02290
[Presentation] First Principles Study of grain boundary diffusion in a-Al2O32015
- Author(s)
  Tetsuya Tohei, Yuito Watanabe, Naoya Shibata, Yuichi Ikuhara
- Organizer
  11th International Conference on Ceramic Materials and Components for Energy and Environmental Applications (11th CMCEE)
- Place of Presentation
  Hyatt Regency Vancouver, Vancouver, Canada
- Year and Date
  2015-06-16
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] アルミナ双結晶の粒界原子構造に対する不純物濃度の影響2014
- Author(s)
  藤平哲也, 酒井正裕, 柴田直哉, 幾原雄一
- Organizer
  日本顕微鏡学会第70回記念学術講演会
- Place of Presentation
  幕張メッセ（千葉）
- Year and Date
  2014-05-13
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] First Principles Study on Vacancy Formation and Diffusion Behaviors in a-Al2O3 Grain Boundary2014
- Author(s)
  T. Tohei, Y. Watanabe, N. Shibata, Y. Ikuhara
- Organizer
  Advanced Microscopy and Theoretical Calculations 4
- Place of Presentation
  ACT CITY, Hamamatsu
- Year and Date
  2014-05-08
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] 第一原理計算によるアルミナ粒界原子拡散挙動の理論的解析2014
- Author(s)
  藤平哲也，渡邊唯人，柴田直哉，幾原雄一
- Organizer
  日本金属学会2014年春季大会
- Place of Presentation
  東京工業大学（東京）
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] First Principles Study on Vacancy Formation and Diffusion Behaviors in a-Al2O3 Grain Boundary2014
- Author(s)
  Tetsuya Tohei, Yuito Watanabe, Naoya Shibata, Yuichi Ikuhara
- Organizer
  The 4th International Symposium on Advanced Microscopy and Theoretical Calculations (AMTC4)
- Place of Presentation
  ACT CITY Hamamatsu, Hamamatsu, Shizuoka, Japan
- Year and Date
  2014-05-08
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] アルミナ粒界における原子拡散挙動の第一原理理論解析2014
- Author(s)
  藤平哲也, 渡邊唯人, 柴田直哉, 幾原雄一
- Organizer
  日本金属学会2014年度秋期講演大会
- Place of Presentation
  名古屋大学、愛知県、千種区
- Year and Date
  2014-08-25
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] アルミナ双結晶の粒界原子構造に対する不純物濃度の影響2014
- Author(s)
  藤平哲也, 酒井正裕, 柴田直哉, 幾原雄一
- Organizer
  日本顕微鏡学会第70回記念学術講演会
- Place of Presentation
  幕張メッセ、千葉県、千葉市
- Year and Date
  2014-05-13
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] 走査透過型電子顕微鏡による材料微構造の原子レベル解析2014
- Author(s)
  藤平哲也, 熊本明仁, 柴田直哉, 幾原雄一
- Organizer
  日本顕微鏡学会第70回記念学術講演会
- Place of Presentation
  幕張メッセ（千葉）
- Year and Date
  2014-05-12
- Invited
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] LixFePO4異相境界における歪み・組成分析解析2014
- Author(s)
  中村明穂, 古月翔, 西村真一, 藤平哲也, 佐藤幸生, 柴田直哉, 山田淳夫, 幾原雄一
- Organizer
  日本顕微鏡学会第70回記念学術講演会
- Place of Presentation
  幕張メッセ、千葉県、千葉市
- Year and Date
  2014-05-12
- Invited
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] アルミナ粒界における原子拡散挙動の第一原理理論解析2014
- Author(s)
  藤平哲也, 渡邊唯人, 柴田直哉, 幾原雄一
- Organizer
  日本金属学会2014年度秋期講演大会
- Place of Presentation
  名古屋大学（愛知）
- Year and Date
  2014-09-25
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] 走査透過型電子顕微鏡による材料微構造の原子レベル解析2014
- Author(s)
  藤平哲也, 熊本明仁, 柴田直哉, 幾原雄一
- Organizer
  日本顕微鏡学会第70回記念学術講演会
- Place of Presentation
  幕張メッセ、千葉県、千葉市
- Year and Date
  2014-05-12
- Invited
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] Structure and Dopant Effects of Oxide Grain Boundaries by Atomic Scale STEM Analysis2013
- Author(s)
  T. Tohei, M. Sakai, Y. Watanabe, N. Shibata, and Y. Ikuhara
- Organizer
  7th International Conference on the Science and Technology for Advanced Ceramics (STAC7)
- Place of Presentation
  Mielparque, Yokohama
- Invited
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] 原子分解能STEMによる材料界面・微構造の解析2013
- Author(s)
  藤平哲也，柴田直哉, 溝口照康, 幾原雄一
- Organizer
  第74回応用物理学会秋季学術講演会
- Place of Presentation
  同志社大学（京都）
- Invited
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] Analysis of Atomic Structure and Dopant Effects on alpha-alumina Grain Boundaries2013
- Author(s)
  T. Tohei, M. Sakai, TH. Kweon, Y. Watanabe, N. Shibata, and Y. Ikuhara
- Organizer
  iib2013
- Place of Presentation
  Halkidiki, Greece
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] Phonon and related properties of ceramic materials by first principles calculations2013
- Author(s)
  T. Tohei and Y. Ikuhara
- Organizer
  SNU-UT Workshop on Oxide Systems for Energy & Electric Applications
- Place of Presentation
  Seoul, Korea
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] 六方晶希土類複合酸化物の強誘電性と微構造2012
- Author(s)
  藤平哲也・幾原雄一・田中功・森分博紀
- Organizer
  日本金属学会2013年春期講演大会（第152回）
- Place of Presentation
  愛媛大学（愛媛）
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] Observation of Microstructures in Doped LaMOX Compounds by Atomic Scale STEM Imaging2012
- Author(s)
  T. Tohei, T. Mizoguchi, H. Hiramatsu, Y. Kamihara, H. Hosono, and Y. Ikuhara
- Organizer
  3rd International Symposium on Advanced Microscopy and Theoretical Calculations (AMTC3)
- Place of Presentation
  Gifu, Japan
- Data Source
  KAKENHI-PROJECT-24760533
[Presentation] Atomic scale investigation of grain boundaries in CeO2
- Author(s)
  B. Feng, H. Hojo, Y. Sato, T. Tohei, N. Shibata, T. Mizoguchi, H. Ohta and Y. Ikuhara
- Organizer
  The 1st East-Asia Microscopy Conference (EAMC-1)
- Place of Presentation
  Chongqing, China
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] First-principles calculation on Er segregation around screw
- Author(s)
  Yan-Nan Feng, Yuki Kezuka, Eita Tochigi, Tsubasa Nakagawa, Tetsuya Tohei, Naoya Shibata, Kenji Tsuruta and Yuichi Ikuhara
- Organizer
  The 153th Annual Fall Meeting of the Japan Institute of Metals and Materials
- Place of Presentation
  Kanazawa University, Japan
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] 第一原理計算によるアルミナ粒界原子拡散挙動の理論的解析
- Author(s)
  藤平哲也，渡邊唯人，柴田直哉，幾原雄一
- Organizer
  日本金属学会2014年春季(第154回)大会
- Place of Presentation
  東京工業大学、目黒区、東京都
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] Analysis of interface and microstructure of materials by atomic resolution STEM
- Author(s)
  藤平哲也，柴田直哉, 溝口照康, 幾原雄一
- Organizer
  第74回応用物理学会秋季学術講演会
- Place of Presentation
  同志社大学、京都府
- Invited
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] Quantitative strain and chemical analysis for LiαFePO4/Li1-βFePO4 phase interface
- Author(s)
  中村明穂, 古月翔, 西村真一, 藤平哲也, 佐藤幸生, 柴田直哉, 山田淳夫, 幾原雄一
- Organizer
  新学術領域研究　ナノ構造材料のフロンティア開拓　第1回若手の会
- Place of Presentation
  KKRホテル名古屋、愛知県
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] Zoom into the multiferroic vortex core in a hexagonal YMnO3 single crystal by an aberration-corrected TEM: a direct visualization of the topological vortex core pinned by another topological defect on the atomic scale
- Author(s)
  Takao Matsumoto, Ryo Ishikawa, Tetsuya Tohei, Hideo Kimura, Qiwen Yao, Hongyang Zhao, Xiaolin Wang, Dapeng Chen, Zhenxiang Cheng, Naoya Shibata, and Yuichi Ikuhara
- Organizer
  Frontiers of Electron Microscopy in Materials Science 2013
- Place of Presentation
  Lorne, VIC, Australia
- Data Source
  KAKENHI-PLANNED-25106003
[Presentation] LiFePO4/FePO4異相境界における局所strain解析
- Author(s)
  中村明穂, 古月翔, 西村真一, 藤平哲也, 佐藤幸生, 柴田直哉, 山田淳夫, 幾原雄一
- Organizer
  日本セラミックス協会第26回秋季シンポジウム
- Place of Presentation
  信州大学，長野県
- Data Source
  KAKENHI-PLANNED-25106003

1. IKUHARA YUICHI (70192474)

# of Collaborated Projects: 2 results

# of Collaborated Products: 38 results
2. 石川亮 (20734156)

# of Collaborated Projects: 2 results

# of Collaborated Products: 1 results
3. 栃木栄太 (50709483)

# of Collaborated Projects: 2 results

# of Collaborated Products: 5 results
4. Shibata Naoya (10376501)

# of Collaborated Projects: 1 results

# of Collaborated Products: 22 results
5. 溝口照康 (70422334)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
6. 佐藤幸生 (80581991)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
7. MATSUMOTO Takao

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
8. NAKABAYASHI Mamiko

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. IMAI Yasuhiko

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
10. SHIMOJIMA Atsushi

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
11. 酒井朗

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
12. 高野吉郎

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
13. 大久保達也

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
14. 菅原彩絵

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
15. 伊田進太郎

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
16. 石原達己

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Tohei Tetsuya 藤平 哲也

TOHEI Tetsuya 藤平 哲也

Research Projects

Research Products

Co-Researchers

磁性体のエントロピー勾配に伴う新規磁気起電力効果の探索Principal Investigator

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Development of plastic functionality electronic devices based on elementary processes of point defects fluid and condensationPrincipal Investigator

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TEM operand and first principles analysis of mechanisms of time-dependent oxide memristor propertiesPrincipal Investigator

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Interfacial structural unit design for advanced stractural and functional materials

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Frontier explorations in nanodopant analysis

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Atomistic scale analysis of microstructures in unconventional ferroelectric oxidesPrincipal Investigator

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[Journal Article] Versatile Functionality of Four-Terminal TiO2-x Memristive Devices as Artificial Synapses for Neuromorphic Computing2022

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[Journal Article] Fabrication of GaOx based crossbar array memristive devices and their resistive switching properties2020

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[Journal Article] Gate Tuning of Synaptic Functions Based on Oxygen Vacancy Distribution Control in Four-Terminal TiO2－x Memristive Devices2019

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[Journal Article] Leakage current analysis for dislocations in Na-flux GaN bulk single crystals by conductive atomic force microscopy2018

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[Journal Article] Microstructural analysis in the depth direction of a heteroepitaxial AlN thick film grown on a trench-patterned template by nanobeam X-ray diffraction2018

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[Journal Article] Leakage current analysis in GaN-on-GaN p-n diode by conductive atomic force microscopy2018

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[Journal Article] Analysis of Ti valence States in resistive switching regions of a rutile TiO2-x four-terminal memristive devices2018

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NAID

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[Journal Article] Nanobeam X-ray diffraction analysis of lattice deformation in thin nano-indented single crystal Si wafers2018

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[Journal Article] TEM Microstructure Analysis of Resistive Switching Regions in Rutile TiO2 Single Crystal Memristors2017

Tohei Tetsuya 藤平哲也

TOHEI Tetsuya 藤平哲也