Yasui Akira 保井晃

… Alternative Names

YASUI Akira 保井晃

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Researcher Number	40455291
Other IDs	https://orcid.org/0000-0003-2130-0523
Affiliation (Current)	2024: 公益財団法人高輝度光科学研究センター, ナノテラス事業推進室, 主幹研究員 2024: 公益財団法人高輝度光科学研究センター, 分光推進室, 主幹研究員
Affiliation (based on the past Project Information) *help	2020 – 2024: 公益財団法人高輝度光科学研究センター, 分光推進室, 主幹研究員 2019 – 2020: 公益財団法人高輝度光科学研究センター, 分光・イメージング推進室, 主幹研究員 2019: 公益財団法人高輝度光科学研究センター, 分光・イメージング推進室, 研究員 2015 – 2016: 公益財団法人高輝度光科学研究センター, 利用研究促進部門, 研究員
Review Section/Research Field	Principal Investigator Basic Section 80040:Quantum beam science-related / Quantum beam science Except Principal Investigator Basic Section 80040:Quantum beam science-related / Basic Section 29020:Thin film/surface and interfacial physical properties-related
Keywords	Principal Investigator 磁性材料 / 放射光 / 磁性多層膜 / 磁気物性 / 光電子分光 / 磁場印加光電子分光 / 硬X線光電子分光 / スピントロニクス / 電子・磁気物性 / 硬Ｘ線光電子分光 / スピントロニクス材料 … More Except Principal Investigator … More X線分光 / 電子状態 / 希土類化合物 / 不純物アンダーソン模型 / ベイズ推定 / 顕微 / Society 5.0 / デバイス / 時空間X線分光 / 時空間 / オペランド / トランジスタ / 二次元電子 Less

Elucidation of the valence fluctuation / transition mechanism of rare-earth compounds by means of composite resonant X-ray spectroscopy measurements and Bayesian inference
- Principal Investigator
  
  三村功次郎
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 80040:Quantum beam science-related
- Research Institution
  Osaka Metropolitan University
  Osaka Prefecture University
Development of measuring techniques for electric and magnetic states at buried interface in spintronics materials using hard X-ray photoelectron spectroscopyPrincipal Investigator
- Principal Investigator
  
  Yasui Akira
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 80040:Quantum beam science-related
- Research Institution
  Japan Synchrotron Radiation Research Institute
Mechanistic study of interface electronic states in 2D electron devices and improvement of the device performances
- Principal Investigator
  
  Fukidome Hirokazu
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 29020:Thin film/surface and interfacial physical properties-related
- Research Institution
  Tohoku University
Development of photoemission spectroscopy technique with applying magnetic fieldPrincipal Investigator
- Principal Investigator
  
  YASUI Akira
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Quantum beam science
- Research Institution
  Japan Synchrotron Radiation Research Institute

All 2023 2022 2021 2020 2019 2017 2016 2015

All Journal Article Presentation

[Journal Article] Dynamics of surface electron trapping of a GaN-based transistors revealed by spatiotemporally resolved x-ray spectroscopy2020
- Author(s)
  Omika Keiichi、Takahashi Kensuke、Yasui Akira、Ohkochi Takuo、Osawa Hitoshi、Kouchi Tsuyoshi、Tateno Yasunori、Suemitsu Maki、Fukidome Hirokazu
- Journal Title
  
  Applied Physics Letters
  
  Volume: 117 Issue: 17 Pages: 171605-171605
- DOI
  10.1063/5.0020500
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06361, KAKENHI-PROJECT-19H02590
[Presentation] 鎖状反強磁性体TlFeS2, TlFeSe2の硬X線光電子スペクトルの偏光依存性2023
- Author(s)
  篠塚知輝，井上賢太，浜原健太，雀部矩正，沈用球，脇田和樹，Z. Jahangirli，I. Amiraslanov，保井晃，N. Mamedov，三村功次郎
- Organizer
  第36回日本放射光学会年会・放射光科学合同シンポジウム
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] Electronic Structure of Covalent-Chain Antiferromagnets TlFeX2 (X = S, Se) Studied by HAXPES2022
- Author(s)
  Tomoki Shinozuka, Kenta Inoue, Kenta Hamahara, Norimasa Sasabe, YongGu Shim, Kazuki Wakita, Zakir Jahangirli, Imameddin Amiraslanov, Akira Yasui, Nazim Mamedov, and Kojiro Mimura
- Organizer
  The 9th International Conference on Hard X-Ray Photoelectron Spectroscopy (HAXPES2022)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] 共鳴硬X線光電子分光によるEuNi2(P1-xGex)2の電子状態の研究2022
- Author(s)
  井上賢太，田村浩太郎，井角元，柴垣善則，浜原健太，保井晃，雀部矩正，水牧仁一朗，河村直己，池永英司，筒井智嗣，佐藤仁，光田暁弘，和田裕文，魚住孝幸，三村功次郎
- Organizer
  第35回日本放射光学会年会・放射光科学合同シンポジウム
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] Ir 5d State of CuIr2S4 Studied by Ir 2p3/2-5d Resonant HAXPES2022
- Author(s)
  Yukihiro Taguchi, Yoshinori Shibagaki, Akira Yasui, Norimasa Sasabe, Naomi Kawamura, Eiji Ikenaga, Masaichiro Mizumaki, Satoshi Tsutsui, Hiroki Ishibashi, and Kojiro Mimur
- Organizer
  The 9th International Conference on Hard X-Ray Photoelectron Spectroscopy (HAXPES2022)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] Relationship of Ce 4f-5d Coulomb Repulsion on CeT2X2 (T = Cu, Ru; X = Si, Ge): Resonant HAXPES Study2022
- Author(s)
  Kojiro Mimura, Gen Isumi, Masaichiro Mizumaki, Norimasa Sasabe, Akira Yasui, Yu Akedo, Taku Kawabata, Ryohei Shimokasa, Yoshinori Shibagaki, Naomi Kawamura, Eiji Ikenaga, Satoshi Tsutsui, Hitoshi Sato, Takayuki Uozumi, Tatsuma D. Matsuda, and Yoshichika _nuki
- Organizer
  The 9th International Conference on Hard X-Ray Photoelectron Spectroscopy (HAXPES2022)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] Study on Tm Electronic States in TmX3 (X=Al, Ga, In, and Pd) using X-ray Emission and Photoemission Spectroscopy2022
- Author(s)
  Naomi Kawamura, Norimasa Sasabe, Akira Yasui, Yusuke Hirose, Fuminori Honda, Kojiro Mimura, and Takayuki Uozumi
- Organizer
  29th International Conference on Low Temperature Physics (LT29)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] 硬X線光電子分光による鎖状反強磁性体TlFeS2, TlFeSe2の電子状態の研究2022
- Author(s)
  篠塚知輝，井上賢太，浜原健太，雀部矩正，沈用球，脇田和樹，Z. Jahangirli, I. Amiraslanov，保井晃，N. Mamedov，三村功次郎
- Organizer
  日本物理学会2022年秋季大会
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] 価数揺動物質CeRh3中のCe 4f-5dクーロン斥力：共鳴硬X線光電子分光による研究2022
- Author(s)
  井角元，水牧仁一朗，雀部矩正，保井晃，明渡悠，河端拓，下笠諒平，柴垣善則，河村直己，池永英司，筒井智嗣，佐藤仁，広瀬雄介，摂待力生，魚住孝幸，三村功次郎
- Organizer
  第35回日本放射光学会年会・放射光科学合同シンポジウム
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] 共鳴硬X線光電子分光でみるEuNi2(P1-xGex)2の価数揺動2021
- Author(s)
  井上賢太，田村浩太郎，井角元，柴垣善則，浜原健太, 保井晃，雀部矩正，水牧仁一朗，河村直己，池永英司，筒井智嗣，佐藤仁，光田暁弘，和田裕文，魚住孝幸，三村功次郎
- Organizer
  日本物理学会2021年秋季大会
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] Upgrade of HAXPES functionality in beamline BL09XU of SPring-82021
- Author(s)
  Akira Yasui, Yasumasa Takagi, Taito Osaka, Michihiro Sugahara, Yasunori Senba, Haruhiko Ohashi, Naomi Kawamura, Kyo Nakajima, Koji Motomura, Kenji Tamasaku, Yusuke Tamenori, Makina Yabashi
- Organizer
  Material Research Meeting 2021
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K12655
[Presentation] Electronic structure of EuNi2(P1-xGex)2 investigated by resonant hard x-ray photoemission spectroscopy2021
- Author(s)
  K. Inoue, K. Tamura, G. Isumi, Y. Shibagaki, K. Hamahara, A. Yasui, N. Kawamura, N. Sasabe, M. Mizumaki, E. Ikenaga, S. Tsutsui, H. Sato, A. Mitsuda, H. Wada, T. Uozumi, and K. Mimura
- Organizer
  New Generation in Strongly Correlated Electron Systems 2021 (NGSCES-2021)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] スピントロニクス材料の埋もれた界面における磁化分布計測を指向した硬X線光電子分光技術開発2021
- Author(s)
  保井晃，池永英司
- Organizer
  第69回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19K12655
[Presentation] SPring-8 BL09XUにおける硬X線光電子分光計測技術の進展2021
- Author(s)
  保井晃，高木康多，大坂泰斗，菅原道泰，仙波泰徳，大橋治彦，河村直己，中嶋享，本村幸治，玉作賢治，為則雄祐，矢橋牧名
- Organizer
  第82回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-19K12655
[Presentation] Relation of Ce 4f-5d Coulomb Repulsion in Quantum Critical Phenomena of Ce122 Studied by Resonant Hard X-ray Photoemission Spectroscopy2021
- Author(s)
  Kojiro Mimura, Gen Isumi, Masaichiro Mizumaki, Norimasa Sasabe, Akira Yasui, Yu Akedo, Taku Kawabata, Ryohei Shimokasa, Yoshinori Shibagaki, Naomi Kawamura, Eiji Ikenaga, Satoshi Tsutsui, Hitoshi Sato, Takayuki Uozumi, Tatsuma D. Matsuda, and Yoshichika Onuki
- Organizer
  Materials Research Meeting 2021 (MRM2021)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K21828
[Presentation] Advances of resonant HAXPES in BL09XU of SPring-8 and its applications2019
- Author(s)
  Akira Yasui, Naomi Kawamura, Eiji Ikenaga, Masaichiro Mizumaki, Satoshi Tsutsui, and Kojiro Mimura
- Organizer
  8th International Conference on Hard X-ray Photoelectron Spectroscopy (HAXPES2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K12655
[Presentation] Development of Measurement Technique for Magnetization Distribution at Buried Interface in Spintronics Materials using Hard X-ray Photoelectron Spectroscopy2019
- Author(s)
  Akira Yasui and Eiji Ikenaga
- Organizer
  International Conference on Materials and Systems for Sustainability 2019 (ICMaSS2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K12655
[Presentation] 磁性多層膜に対する磁場印加下での硬X線光電子分光測定技術開発2017
- Author(s)
  保井晃、池永英司、中村哲也
- Organizer
  日本金属学会2017年春期講演大会
- Place of Presentation
  首都大学東京南大沢キャンパス（東京都八王子市）
- Year and Date
  2017-03-15
- Data Source
  KAKENHI-PROJECT-15K17496
[Presentation] 着磁済みネオジム磁石における硬X線光電子分光スペクトルの深さ分解磁気円二色性測定2016
- Author(s)
  保井晃、池永英司、小谷佳範、辻成希、上野若菜、中村哲也
- Organizer
  第29回日本放射光学会年会・放射光科学合同シンポジウム
- Place of Presentation
  東京大学柏の葉キャンパス駅前サテライト　（千葉県柏市）
- Year and Date
  2016-01-09
- Data Source
  KAKENHI-PROJECT-15K17496
[Presentation] 深さ分解MCD-HAXPESによるネオジム磁石の破断面に露出した一結晶粒磁化分布解析2016
- Author(s)
  保井晃、池永英司、小谷佳範、辻成希、上野若菜、中村哲也
- Organizer
  第11回放射光表面科学研究部会顕微ナノ材料科学研究会合同シンポジウム
- Place of Presentation
  大型放射光施設SPring-8　（兵庫県佐用郡）
- Year and Date
  2016-03-14
- Data Source
  KAKENHI-PROJECT-15K17496
[Presentation] 磁場印加条件下での硬X線光電子MCD測定技術の開発2015
- Author(s)
  保井晃、池永英司、小谷佳範、辻成希、上野若菜、中村哲也
- Organizer
  SPring-8シンポジウム2015
- Place of Presentation
  九州大学　伊都キャンパス　カーボンニュートラル・エネルギー国際研究所/I2CNER（アイスナー）（福岡県福岡市）
- Year and Date
  2015-09-13
- Data Source
  KAKENHI-PROJECT-15K17496

1. Fukidome Hirokazu (10342841)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
2. 小嗣真人 (60397990)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 三村功次郎 (40305652)

# of Collaborated Projects: 1 results

# of Collaborated Products: 10 results
4. 光田暁弘 (20334708)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
5. 河村直己 (40393318)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
6. 水牧仁一朗 (60360830)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
7. 魚住孝幸 (80295724)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results

Yasui Akira 保井 晃

YASUI Akira 保井 晃

Research Projects

Research Products

Co-Researchers

Elucidation of the valence fluctuation / transition mechanism of rare-earth compounds by means of composite resonant X-ray spectroscopy measurements and Bayesian inference

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of measuring techniques for electric and magnetic states at buried interface in spintronics materials using hard X-ray photoelectron spectroscopyPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Mechanistic study of interface electronic states in 2D electron devices and improvement of the device performances

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of photoemission spectroscopy technique with applying magnetic fieldPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Dynamics of surface electron trapping of a GaN-based transistors revealed by spatiotemporally resolved x-ray spectroscopy2020

Author(s)

Journal Title

DOI

Data Source

[Presentation] 鎖状反強磁性体TlFeS2, TlFeSe2の硬X線光電子スペクトルの偏光依存性2023

Author(s)

Organizer

Data Source

[Presentation] Electronic Structure of Covalent-Chain Antiferromagnets TlFeX2 (X = S, Se) Studied by HAXPES2022

Author(s)

Organizer

Data Source

[Presentation] 共鳴硬X線光電子分光によるEuNi2(P1-xGex)2の電子状態の研究2022

Author(s)

Organizer

Data Source

[Presentation] Ir 5d State of CuIr2S4 Studied by Ir 2p3/2-5d Resonant HAXPES2022

Author(s)

Organizer

Data Source

[Presentation] Relationship of Ce 4f-5d Coulomb Repulsion on CeT2X2 (T = Cu, Ru; X = Si, Ge): Resonant HAXPES Study2022

Author(s)

Organizer

Data Source

[Presentation] Study on Tm Electronic States in TmX3 (X=Al, Ga, In, and Pd) using X-ray Emission and Photoemission Spectroscopy2022

Author(s)

Organizer

Data Source

[Presentation] 硬X線光電子分光による鎖状反強磁性体TlFeS2, TlFeSe2の電子状態の研究2022

Author(s)

Organizer

Data Source

[Presentation] 価数揺動物質CeRh3中のCe 4f-5dクーロン斥力：共鳴硬X線光電子分光による研究2022

Author(s)

Organizer

Data Source

[Presentation] 共鳴硬X線光電子分光でみるEuNi2(P1-xGex)2の価数揺動2021

Author(s)

Organizer

Data Source

[Presentation] Upgrade of HAXPES functionality in beamline BL09XU of SPring-82021

Author(s)

Organizer

Data Source

[Presentation] Electronic structure of EuNi2(P1-xGex)2 investigated by resonant hard x-ray photoemission spectroscopy2021

Author(s)

Organizer

Data Source

[Presentation] スピントロニクス材料の埋もれた界面における磁化分布計測を指向した 硬X線光電子分光技術開発2021

Author(s)

Yasui Akira 保井晃

YASUI Akira 保井晃

[Presentation] スピントロニクス材料の埋もれた界面における磁化分布計測を指向した硬X線光電子分光技術開発2021