Rchr
J-GLOBAL ID：201701008709350899
Update date: Feb. 01, 2024
Fukumoto Keiki
Fukumoto Keiki
Affiliation and department：
Research field (1)：
Semiconductors, optical and atomic physics
Research keywords (1)：
Ultrafast phenomena, photoemission spectroscopy, semiconductor
Research theme for competitive and other funds (5)：
- 2021 - 2024 表面終端により異なるトポロジカル表面状態とスピン流ダイナミクス
- 2020 - 2023 Detailed characterization of SAMO utilizing Li@C60 films
- 2017 - 2022 Observation of a structural transition induced by external-field in the softcrystals using X-ray molecular movie method.
- 2015 - 2017 Construction of the energy tunable fs laser for time-resolved photoemission electron microscopy with time, space, and energy resolution
- 2006 - 2010 Observation of ultra-fast magnetic response by a time-resolved photoemission electron microscope
Papers (53)：
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Ryoma Hayakawa, Soichiro Takeiri, Yoichi Yamada, Yutaka Wakayama, Keiki Fukumoto. Carrier Transport Mechanism in Organic Antiambipolar Transistors Unveiled by Operando Photoemission Electron Microscopy. 2022
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Yusuke Fukami, Masato Iwasawa, Masahiro Sasaki, Takuya Hosokai, Hajime Nakanotani, Chihaya Adachi, Keiki Fukumoto, and Yoichi Yamada. Direct Observation of Photoexcited Electron Dynamics in Organic Solids Exhibiting Thermally Activated Delayed Fluorescence via Time-Resolved Photoelectron Emission Microscopy. Advanced Optical Materials. 2021
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Masato Iwasawa, Ryohei Tsuruta, Yasuo Nakayama, Masahiro Sasaki, Takuya Hosokai, Sunghee Lee, Keiki Fukumoto, Yoichi Yamada. Exciton Dissociation and Electron Transfer at a Well-Defined Organic Interface of an Epitaxial C-60 Layer on a Pentacene Single Crystal. JOURNAL OF PHYSICAL CHEMISTRY C. 2020. 124. 25. 13572-13579
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Keiki Fukumoto, Ayse Seyhan, Ken Onda, Shunri Oda, Shin-ya Koshihara. Comparison of picosecond electron dynamics in isolated and clustered Si quantum dots deposited on a semiconductor surface. APPLIED PHYSICS LETTERS. 2019. 115. 5
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Fukaya R., Nozawa S., Adachi J., Ichiyanagi K., Fukumoto K., Fujioka J., Wadachi H., Tokura Y., Adachi S., Yamasaki Y., et al. Photoinduced dynamics of magnetic and orbital order in LaCoO3 thin films by time-resolved resonant soft x-ray scattering. Meeting Abstracts of the Physical Society of Japan. 2018. 73. 0. 1532-1532
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MISC (16)：
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福本 恵紀, 恩田 健, 腰原 伸也. 半導体表面を超高速で流れる電子を可視化 : フェムト秒レーザを利用した時間分解光電子顕微鏡の開発. 光アライアンス. 2014. 25. 10. 41-44
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Yamada Y., Fukumoto K., Ishikawa T., Okimoto Y., Onda K., Koshihara S. 28pEJ-2 Imaging of photo-carrier dynamics in semiconductor by time-resolved photoemission electron microscopy. Meeting abstracts of the Physical Society of Japan. 2013. 68. 1. 825-825
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Fukumoto K., Yamada Y., Ishikawa T., Okimoto Y., Onda K., Koshihara S. 18aHC-6 Development of time-resolved photoemission electron microscopy with femtosecond laser. Meeting abstracts of the Physical Society of Japan. 2012. 67. 2. 657-657
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Yamada Y., Fukumoto K., Ishikawa T., Okimoto Y., Onda K., Koshihara S. 20aHB-10 Imaging of carrier diffusion at the SiO_2/Si interface by time-resolved photoemission electron microscopy. Meeting abstracts of the Physical Society of Japan. 2012. 67. 2. 701-701
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FUKUMOTO K., KINOSHITA T. Spin Dynamics in Micron-sized Magnetic Elements Using Time-resolved XMCD-PEEM. Magnetics Japan. 2011. 6. 5. 258-263
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Books (1)：
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X線分光 : 放射光の基礎から時間分解計測まで
共立出版 2019 ISBN:9784320044722
Education (1)：
- 2002 - 2005 ベルリン自由大学 実験物理研究科
Work history (6)：
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