Rchr
J-GLOBAL ID：202301013639562339
Update date: Nov. 02, 2023
Yokoyama Yuichi
ヨコヤマ ユウイチ | Yokoyama Yuichi
Affiliation and department：
Job title：
Researcher
Research field (1)：
Magnetism, superconductivity, and strongly correlated systems
Research keywords (3)：
ベイズ推定
, スパースモデリング
, 放射光X線
Research theme for competitive and other funds (2)：
- 2019 - 2023 Time- and spatially- resolved measurements of magnetic texture using ultrafast coherent X-ray pulse
- 2019 - 2022 Visualization of magnon motion by time-resolved coherent soft x-ray microscopy
Papers (16)：
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Yuichi Yokoyama, Yuichi Yamasaki, Masato Okada, Masaichiro Mizumaki. Phase Retrieval Algorithm based on Total Variation Regularization for Ferromagnetic Domain Patterns. Journal of the Physical Society of Japan. 2022. 91. 3
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Motoi Kimata, Norimasa Sasabe, Kensuke Kurita, Yuichi Yamasaki, Chihiro Tabata, Yuichi Yokoyama, Yoshinori Kotani, Muhammad Ikhlas, Takahiro Tomita, Kenta Amemiya, et al. X-ray study of ferroic octupole order producing anomalous Hall effect. Nature Communications. 2021
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Jose R. L. Mardegan, Serhane Zerdane, Giulia Mancini, Vincent Esposito, Jeremy R. Rouxel, Roman Mankowsky, Cristian Svetina, Namrata Gurung, Sergii Parchenko, Michael Porer, et al. Ultrafast electron localization in the EuNi2(Si0.21Ge0.79)(2) correlated metal. PHYSICAL REVIEW RESEARCH. 2021. 3. 3
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Yuichi Yokoyama, Naruki Tsuji, Ichiro Akai, Kenji Nagata, Masato Okada, Masaichiro Mizumaki. Bayesian Orbital Decomposition and Determination of End Condition for Magnetic Compton Scattering. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN. 2021. 90. 9
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Yuichi Yokoyama, Takayuki Uozumi, Kenji Nagata, Masato Okada, Masaichiro Mizumaki. Bayesian Integration for Hamiltonian Parameters of X-ray Photoemission and Absorption Spectroscopy. Journal of the Physical Society of Japan. 2021
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MISC (15)：
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横山 優一. 放射光ニュース 第24回日本放射光学会奨励賞受賞研究報告 共鳴非弾性軟X線散乱による電子状態解明およびコヒーレント軟X線散乱による時空間分解計測の開発-Community News : Report on the JSSRR Scientific Award : Study of electronic structures revealed by resonant soft X-ray inelastic scattering and development of time- and space-resolved measurements via coherent soft X-ray scattering. 放射光 : 日本放射光学会誌 = Journal of the Japanese Society for Synchrotron Radiation Research / 日本放射光学会 編. 2020. 33. 2. 147-150
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Yokoyama Y., Nagata K., Okada M., Akai I., Mizumaki M. Analysis of x-ray photoemission and absorption spectra in YbRh2Si2 based on Bayesian inference. Meeting Abstracts of the Physical Society of Japan. 2020. 75.1. 1877-1877
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Yokoyama Yuichi, Kawakami Koki, Hirata Yasuyuki, Yamamoto Kohei, Takubo Kou, Abe Koudai, Mitsuda Akihiro, Wada Hirofumi, Uozumi Takayuki, Mimura Kojiro, et al. Photoinduced valence change of EuNi2(Si0.21Ge0.79)2 observed by time-resolved XAS. JSAP Annual Meetings Extended Abstracts. 2018. 2018.1. 1795-1795
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Yokoyama Y., Kawakami K., Hirata Y., Takubo K., Yamamoto K., Abe K., Mitsuda A., Wada H., Mimura K., Wadati H. Photo-induced valence transition of EuNi2(Si0.21Ge0.79)2 studied by time-resolved soft x-ray absorption spectroscopy. Meeting Abstracts of the Physical Society of Japan. 2018. 73.1. 2058-2058
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Yokoyama Yuichi, Yamasaki Yuichi, Okada Masato. Sparse phase retrieval algorithm from coherent diffraction patterns with missing area. Meeting Abstracts of the Physical Society of Japan. 2018. 73.2. 935-935
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Education (2)：
- 2013 - 2018 The University of Tokyo Graduate School of Science Department of Physics
- - 2013 Tokyo University of Science Faculty of Science, Division 1 Physics
Work history (3)：
- 2022/10 - 現在 Japan Synchrotron Radiation Research Institute
- 2019/04 - 2022/09 Japan Synchrotron Radiation Research Institute
- 2018/04 - 2019/03 National Institute for Materials Science
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