Research field (3)：
Structural and functional materials
, Electronic devices and equipment
, Magnetism, superconductivity, and strongly correlated systems
Research keywords (3)：
陽電子消滅
, 3次元アトムプローブ
, 格子欠陥
Research theme for competitive and other funds (24)：
2012 - 現在 LPSO-Mg合金中の局所組成解析
2012 - 現在 鉄鋼材料中の組織観察および3次元元素分布解析
2007 - 現在 3D analysis of dopant distribution in semiconductor devices
2021 - 2024 Elucidation of mechanism of segregation of solute atom to dislocations
2020 - 2023 サブナノ分解能応力下その場観察法の開拓による新たな照射硬化機構の解明
2018 - 2023 ハイエントロピー合金に内在する元素間相互作用と相安定性原理の実験的解明
2018 - 2023 Development of single dopant circuit by deterministic doping and application to stochastic processing
2016 - 2019 Study of Radiation Damage Mechanisms of Structural Materials in Nuclear Reactors by Defect structure - Elemental distribution Tomography
2015 - 2018 Establishment of analysis of single nanowire by atom probe tomography in combination with transmission electron microscopy
2014 - 2017 Dopant diffusion paths in polycrystalline silicon gate of three-dimensional metal-oxide-semiconductor field effect transistor investigated by atom probe tomography
2013 - 2017 Control of quantum material properties by deterministic doping method
2014 - 2016 アトムプローブ法によるLPSO濃化元素のMg中における拡散係数測定
2014 - 2016 Three-dimensional nanoscale elemental analysis in human teeth by atom probe tomography towards their soundness evaluation
2011 - 2016 Atomic-resolution structure analysis of LPSO structures to explore the structure-property relationships
2012 - 2015 "Transformation - Induced Vacancy" - A New Vacancy Formation Mechanism and Its Function in Materials -
2012 - 2015 Atomic scale observation of grain boundary segregation in nuclear materials by atom probe tomography and study on mechanism of grain boundary degradation
2012 - 2014 Creep degradation assessment for creep-strength-enhanced ferritic steels by positron annihilation spectroscopy
2008 - 2009 High-k gate dielectrics investigated by laser-assisted three dimensional atom probe tomography
2005 - 2009 Clarification of Embrittlement and Degradation Mechanisms of NuclearSteel Materials by Advanced Nano-Materials Science for Control and Prediction of theMaterials Integrity
2006 - 2007 Positronium Study of Structural Nanovoids in Model Glasses
2003 - 2005 Study of Nano-Clustering Mechanism by Positron Annihilation and 3D Atom Probe
2001 - 2002 Study of Atomic and Electronic Structures of Nano-Particles in the Early Stages of Their Formation Using Self-Searching Positrons
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Papers (162)：
Koji Inoue, Taiki Yamashita, Shuhei Nogami, Akira Hasegawa, Takeshi Toyama, Yasuyoshi Nagai. Direct observation of voids decorated with transmuted rhenium atoms in neutron-irradiated tungsten by correlative use of TEM and APT. Materialia. 2023. 32
Ryo Kagawa, Zhe Cheng, Keisuke Kawamura, Yutaka Ohno, Chiharu Moriyama, Yoshiki Sakaida, Sumito Ouchi, Hiroki Uratani, Koji Inoue, Yasuyoshi Nagai, et al. High Thermal Stability and Low Thermal Resistance of Large Area GaN/3C-SiC/Diamond Junctions for Practical Device Processes. Small. 2023
Jing Wang, Yuji Hatano, Takeshi Toyama, Tatsuya Hinoki, Kiyohiro Yabuuchi, Yi-fan Zhang, Bing Ma, Alexander V. Spitsyn, Nikolay P. Bobyr, Koji Inoue, et al. Irradiation effects on binary tungsten alloys at elevated temperatures: Vacancy cluster formation, precipitation of alloying elements and irradiation hardening. Materials & Design. 2023. 229. 111899-111899
Kenta Yoshida, Takeshi Toyama, Koji Inoue, Yasuyoshi Nagai, Masaki Shimodaira. Defect Analysis of Matrix Damage in Reactor Pressure Vessel Steel Using WB-STEM. Materia Japan. 2023. 62. 3. 154-158
Yan Chong, Reza Gholizadeh, Tomohito Tsuru, Ruopeng Zhang, Koji Inoue, Wenqiang Gao, Andy Godfrey, Masatoshi Mitsuhara, J. W. Morris, Andrew M. Minor, et al. Grain refinement in titanium prevents low temperature oxygen embrittlement. Nature Communications. 2023. 14. 1
齋藤隼輝, YU Hao, 井上耕治, GAO Zimo, 近藤創介, 笠田竜太, 永井康介. Formation of fine YSZ particles in Zr-added ODS-Cu. 日本金属学会東北支部研究発表大会予稿集. 2022. 21st (Web)
嶋田雄介, CHEN J., 池田裕樹, 吉田健太, 井上耕治, 今野豊彦, 永井康介. In-situ TEM observation of diffusion enhancement by point defects induced by electron irradiation in the FeSi-D03 lattice. 日本物理学会講演概要集(CD-ROM). 2021. 76. 1
Direct observation of voids decorated with transmuted rhenium atoms in tungsten irradiated by neutrons in the fast neutron experimental reactor Joyo
(The Japan Institute of Metals and Materials 2023)
2012/11 - Summit of Materials Science 2012 Summit of Materials Science 2012 Short Presentation Award
2011/09 - 日本陽電子科学会 第1回日本陽電子科学会奨励賞
2011/03 - 応用物理学会 第2回応用物理学会シリコンテクノロジー分科会論文賞 “Dopant distributions in n-MOSFET structure observed by atom probe tomography” Ultramicroscopy vol. 109, pp. 1479-1484 (2009)
