Exploitation of fast time-resolved x-ray absorption spectroscopy for dilute systems and application to functional materials

• Project/Area Number: 15H02173
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional solid state chemistry
• Research Institution: Institute for Molecular Science
• Principal Investigator: Yokoyama Toshihiko 分子科学研究所, 物質分子科学研究領域, 教授 (20200917)
• Co-Investigator(Kenkyū-buntansha): 高木 康多 分子科学研究所, 物質分子科学研究領域, 助教 (30442982) ; 上村 洋平 分子科学研究所, 物質分子科学研究領域, 助教 (30723647)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥42,770,000 (Direct Cost: ¥32,900,000、Indirect Cost: ¥9,870,000); Fiscal Year 2017: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000); Fiscal Year 2016: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000); Fiscal Year 2015: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
• Keywords: 複合物性 / X線吸収分光 / 高速ダイナミクス / 高速時間分解 / 光触媒

Outline of Final Research Achievements

We have exploited pump-probe fast time-resolved X-ray absorption spectroscopy for dilute systems, which have not been reported so far. In previous pump-probe time-resolved X-ray absorption spectroscopy, due to the synchronization problem between pump lasers and probe synchrotron radiation, only fast time resolved X-ray detectors with low X-ray energy resolution were utilized. Thus the research subject is severely limited only for high concentration materials such as solutions of transition metal complexes. Through the present study, by virtue of the Japanese synchrotron radiation facility Photon Factory Advanced Ring (PF-AR), where the single bunch mode is always operated (only one facility in the world), we can use high energy resolution X-ray detectors and measure fast time resolved (~100 ps) X-ray absorption spectra of diluted systems rather quickly without difficulties. This novel technique is expected to be applied for various scientific and technological subjects in near future.

Research Products

• [Int'l Joint Research] University of Rennes 1(フランス)
• [Int'l Joint Research] レンヌ第1大学(フランス)
• [Int'l Joint Research] レンヌ大学(フランス)
• [Journal Article] Local thermal expansions and lattice strains in Elinvar and stainless steel alloys (2018)
  • Author(s): T. Yokoyama, A. Koide, Y. Uemura
  • Journal Title: Physical Review Materials Volume: 2 Issue: 2 Pages: 023601-023601
  • DOI: 10.1103/physrevmaterials.2.023601
  • Peer Reviewed
• [Journal Article] Capturing local structure modulations of photoexcited BiVO4 by ultrafast transient XAFS (2017)
  • Author(s): Uemura Yohei、Kido Daiki、Koide Akihiro、Wakisaka Yuki、Niwa Yasuhiro、Nozawa Shunsuke、Ichiyanagi Kohei、Fukaya Ryo、Adachi Shin-ichi、Katayama Tetsuo、Togashi Tadashi、Owada Shigeki、Yabashi Makina、Hatada Keisuke、Iwase Akihide、Kudo Akihiko、Takakusagi Satoru、Yokoyama Toshihiko、Asakura Kiyotaka
  • Journal Title: Chem. Commun. Volume: 53 Issue: 53 Pages: 7314-7317
  • DOI: 10.1039/c7cc02201h
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effects of spin-orbit interaction in chromium on oxygen K-edge x-ray magnetic circular dichroism spectra in CrO2 (2017)
  • Author(s): A. Koide, T. Yokoyama
  • Journal Title: Physical Review B Volume: 96 Issue: 14 Pages: 144419-144419
  • DOI: 10.1103/physrevb.96.144419
  • Peer Reviewed
• [Journal Article] Thickness-dependent electronic and magnetic properties of γ'-Fe4N atomic layers on Cu(001) (2017)
  • Author(s): Y. Takahashi, T. Miyamachi, S. Nakashima, N. Kawamura, Y. Takagi, M. Uozumi, V. Antonov, T. Yokoyama, A. Ernst and F. Komori
  • Journal Title: Physical Review B Volume: 95 Issue: 22 Pages: 224417-224417
  • DOI: 10.1103/physrevb.95.224417
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Large-Gap Magnetic Topological Heterostructure Formed by Subsurface Incorporation of a Ferromagnetic Layer (2017)
  • Author(s): T. Hirahara, S. V. Eremeev, T. Shirasawa, Y. Okuyama, T. Kubo, R. Nakanishi, R. Akiyama, A. Takayama, T. Hajiri, S. Ideta, M. Matsunami, K. Sumida, K. Miyamoto, Y. Takagi, K. Tanaka, T. Okuda, T. Yokoyama, S. Kimura, S. Hasegawa, E. V. Chulkov
  • Journal Title: NANO Letters Volume: 17 Issue: 6 Pages: 3493-3500
  • DOI: 10.1021/acs.nanolett.7b00560
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Controlled Modification of Superconductivity in Epitaxial Atomic Layer-Organic Molecule Heterostructures (2017)
  • Author(s): S. Yoshizawa, E. Minamitani, S. Vijayaraghavan, P. Mishra, Y. Takagi, T. Yokoyama, H. Oba, J. Nitta, K. Sakamoto, S. Watanabe, T. Nakayama, and T. Uchihashi
  • Journal Title: Nano Lett. Volume: 17 Issue: 4 Pages: 2287-2293
  • DOI: 10.1021/acs.nanolett.6b05010
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Ultra-Fast XAFS Studies on Photocatalyst Using SACLA (2017)
  • Author(s): 上村 洋平, 脇坂 祐輝, 城戸 大貴, 高草木 達, 朝倉 清高, 丹羽 尉博
  • Journal Title: Nihon Kessho Gakkaishi Volume: 59 Issue: 1 Pages: 24-28
  • DOI: 10.5940/jcrsj.59.24
  • NAID: 130005437784
  • ISSN: 0369-4585, 1884-5576
  • Peer Reviewed
• [Journal Article] Dynamics of Photoelectrons and Structural changes of Tungsten Trioxide Observed by Femtosecond Transient XAFS (2016)
  • Author(s): Y. Uemura, D. Kido, Y. Wakisaka, H. Uehara, T. ohba, Y. Niwa, S. Nozawa, T. Sato, K. Ichiyanagi, R. Fulaya, T. Katayama, T. Togashi, S. Owada, M. Yabashi, K. Hatada, S. Takakusagi, T. Yokoyama, B. Ohtani, K. Asakura
  • Journal Title: Angewandte Chemie International Edition Volume: 55 Issue: 4 Pages: 1364-1367
  • DOI: 10.1002/anie.201509252
  • NAID: 120005946855
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Anomalous structural behavior in the metamagnetic transition of FeRh thin films from a local viewpoint (2015)
  • Author(s): Y. Wakisaka, Y. Uemura, T. Yokoyama, H. Asakura, H. Morimoto, M. Tabuchi, D. Ohshima, T. Kato, S. Iwata
  • Journal Title: Physical Review B Volume: 92 Issue: 18
  • DOI: 10.1103/physrevb.92.184408
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 鉄系スピンクロスオーバー錯体の局所構造解析 (2017)
  • Author(s): 上村洋平, 小出明広, 横山利彦, 高橋一志
  • Organizer: 第6回名古屋大学シンクロトロン光研究センターシンポジウム
  • Place of Presentation: 名古屋大学(愛知県名古屋市)
  • Year and Date: 2017-03-02
• [Presentation] 超高速時間分解XAFSによる不均一触媒のメカニズムの研究 (2017)
  • Author(s): 上村洋平
  • Organizer: 第30回日本放射光学会年会
  • Place of Presentation: 神戸芸術センター(兵庫県神戸市)
  • Year and Date: 2017-01-07
  • Invited
• [Presentation] 強磁性体中における軽元素K-edge XMCDスペクトルの解析 (2017)
  • Author(s): 小出明広、横山利彦
  • Organizer: 第30回日本放射光学会年会
  • Place of Presentation: 神戸芸術センター(兵庫県神戸市)
  • Year and Date: 2017-01-07
• [Presentation] Investigation of excited states of WO3 in picoseconds by L1-edge XANES (2017)
  • Author(s): A. Koide, Y. Uemura, D. Kido, Y. Wakisaka, Y. Niwa, S. Nozawa, S. Adachi, T. Katayama, M. Yabashi, K. Hatada, S. Takakusagi, K. Asakura, B. Ohtani, T. Yokoyama
  • Organizer: International Conference on Photochemistry
  • Int'l Joint Research
• [Presentation] Ultrafast structural modulation in the photoexcited BiVO4 observed by transient XAFS spectroscopy (2017)
  • Author(s): Y. Uemura, D. Kido, A. Koide, Y. Wakisaka, Y. Niwa, S. Nozawa, S. Adachi, T. Katayama, T. Togashi, M. Yabashi, A. Iwase, A. Kudo, S. Takakusagi, T. Yokoyama, K. Asakura
  • Organizer: International Conference on Photochemistry
  • Int'l Joint Research
• [Presentation] Femtoseconds transient XAFS (2017)
  • Author(s): Y. Uemura
  • Organizer: XTRAM
  • Int'l Joint Research / Invited
• [Presentation] 光励起状態WO3における超高速局所構造変化の解析 (2017)
  • Author(s): 小出明広，上村洋平，城戸大貴，脇坂祐輝，丹羽尉博，野澤俊介，足立伸一，片山哲夫，矢橋牧名, 畑田圭介，高草木達，朝倉清高，大谷文章，横山利彦
  • Organizer: 第20回XAFS討論会
• [Presentation] 超高速時間分解 XAFS 法による光触媒 BiVO4の局所構造変化の観測 (2017)
  • Author(s): 上村洋平，城戸大貴，小出明広，脇坂祐輝，丹羽尉博，野澤俊介，足立伸一，片山哲夫, 矢橋牧名，富樫格，岩瀬顕秀，工藤昭彦，高草木達，横山利彦，朝倉清高
  • Organizer: 第20回XAFS討論会
• [Presentation] WO3の光励起緩和過程における局所構造変化 (2017)
  • Author(s): 小出明広
  • Organizer: 日本放射光学会第9回若手研究会・最先端のパルス光で観る超高速科学
• [Presentation] 超高速時間分解XAFSによる不均一触媒のメカニズム (2017)
  • Author(s): 上村洋平
  • Organizer: 日本放射光学会第9回若手研究会・最先端のパルス光で観る超高速科学
  • Invited
• [Presentation] Structural dynamics of photocatalysts observed by ultrafast time resolved XAFS (2017)
  • Author(s): Y. Uemura
  • Organizer: EMN Meeting on Ultrafast
  • Int'l Joint Research / Invited
• [Presentation] Structural dynamics of photocatalysts observed by ultrafast time resolved XAFS (2017)
  • Author(s): Y. Uemura, D. Kido, A. Koido, Y. Wakisaka, Y. Niwa, S. Nozawa, S. Adachi, T. Katayama, T. Togashi, M. Yabashi, A. Iwase, A. Kudo, S. Takakusagi, T. Yokoyama, K. Asakura
  • Organizer: International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
  • Int'l Joint Research
• [Presentation] Anisotropic Local Structural Change in Excited States of WO3 (2017)
  • Author(s): A. Koide, Y. Uemura, D. Kido, Y. Wakisaka, Y. Niwa, S. Nozawa, S. Adachi, T. Katayama, M. Yabashi, K. Hatada, S. Takakusagi, K. Asakura, B. Ohtani, T. Yokoyama
  • Organizer: International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
  • Int'l Joint Research
• [Presentation] 放射光を用いた磁性研究の30年－磁気円二色性の新たな展開－ 磁気円二色性の30年 (2017)
  • Author(s): 横山利彦
  • Organizer: 日本物理学会2017年秋季大会
  • Invited
• [Presentation] X線分光の現況と展望 (2017)
  • Author(s): 横山利彦
  • Organizer: 日本金属学会東北支部第16回研究発表大会
  • Invited
• [Presentation] ポンプ-プローブXAFS法を用いた光触媒の励起状態観測 (2016)
  • Author(s): 上村洋平, 小出明広, 横山利彦, 城戸大貴, 脇坂祐輝, 高草木達, 大谷文章, 朝倉清高, 丹羽尉博, 野澤俊介, 足立伸一, 片山哲夫, 矢橋牧名, 岩瀬顕秀, 工藤昭彦
  • Organizer: 第19回XAFS討論会
  • Place of Presentation: 名古屋大学(愛知県名古屋市)
  • Year and Date: 2016-09-03
• [Presentation] 多重散乱理論を用いたCrO2におけるO K-edge XMCDの解析 (2016)
  • Author(s): 小出明広、横山利彦
  • Organizer: 第19回XAFS討論会
  • Place of Presentation: 名古屋大学(愛知県名古屋市)
  • Year and Date: 2016-09-03
• [Presentation] Photoexcited process of WO3 photocatalyst in femtoseconds to picoseconds region observed by time-resoled XAFS (2016)
  • Author(s): Y. Uemura, A. Koide, T. Yokoyama, D. Kido, Y. Wakisaka, S. Takakusagi, B. Ohtani, K. Asakura, Y. Niwa, S. Nozawa, T. Sato, K. Ichiyanagi, R. Fukaya, S. Adachi, T. Katayama, T. Togashi, S. Owada, K. Ogawa, M. Yabashi
  • Organizer: VUVX2016
  • Place of Presentation: スイス連邦工科大学チューリッヒ校(スイス・チューリッヒ)
  • Year and Date: 2016-07-03
  • Int'l Joint Research
• [Presentation] Time-resolved X-ray Absorption Spectroscopy and Catalytic Reactions (2016)
  • Author(s): Y. Uemura
  • Organizer: The 5th International Conference on MEXT Project of Integrated Research on Chemical Synthesis
  • Place of Presentation: 名古屋大学(愛知県名古屋市)
  • Year and Date: 2016-01-29
  • Int'l Joint Research / Invited
• [Presentation] Femto to Picosecond Transient States of a Photoexcited WO3 Photocatalyst (2015)
  • Author(s): Y. Uemura, D. Kido, Y. Wakisaka, H. Uehara, Ta. Ohba, Y. Niwa, S. Nozawa, T. Sato, K. Ichiyanagi, R. Fukaya, S. Adachi, T. Katayama, T. Togashi, S. Owada, K. Ogawa, M. Yabashi, S Takakusagi, T Yokoyama, B. Ohtani, K. Asakura
  • Organizer: PACIFICHEM2015
  • Place of Presentation: Hawaii Convention Center(Hawaii, U.S.A)
  • Year and Date: 2015-12-15
  • Int'l Joint Research
• [Presentation] 時間分割XAFSによる光触媒の構造・キャリアダイナミクス (2015)
  • Author(s): 上村洋平
  • Organizer: 第35回表面科学学術講演会
  • Place of Presentation: つくば国際会議場(茨城県つくば市)
  • Year and Date: 2015-12-01
  • Invited
• [Presentation] X線吸収微細構造分光の将来展望 (2015)
  • Author(s): 横山利彦
  • Organizer: 第56回高圧討論会シンポジウム「コヒーレント放射光を利用した新しい高圧力科学 III」
  • Place of Presentation: JMSアステールプラザ（広島県広島市）
  • Year and Date: 2015-11-10
  • Invited
• [Presentation] 放射光およびXFELでの時間分解XAFSによる構造ダイナミクス (2015)
  • Author(s): 上村洋平
  • Organizer: 岩澤コンファレンス
  • Place of Presentation: 千葉大学(千葉県千葉市)
  • Year and Date: 2015-09-28
  • Invited
• [Presentation] XAFSによるメタ磁性転移を示すFeRh薄膜の局所構造異常 (2015)
  • Author(s): 脇坂祐輝、上村洋平、横山利彦、朝倉博行、森本浩行、田渕雅夫、大島大輝、加藤剛志、岩田聡
  • Organizer: 物理学会・2015年秋季年会
  • Place of Presentation: 関西大学(大阪府吹田市)
  • Year and Date: 2015-09-16
• [Presentation] XAFSの解釈 (2015)
  • Author(s): 横山利彦
  • Organizer: 日本XAFS研究会夏の学校
  • Place of Presentation: 八王子セミナーハウス（東京都八王子市）
  • Year and Date: 2015-09-07
  • Invited
• [Presentation] Variation of density of states and local structural transformation under the metamagnetic transition of FeRh (2015)
  • Author(s): Y. Wakisaka, Y. Uemura, T. Yokoyama, H. Asakura, H. Morimoto, M. Tabuchi, D. Ohshima, T. Kato, S. Iwata
  • Organizer: XAFS16: Satellite Meeting Application of XAFS to the study of magnetic materials
  • Place of Presentation: Max-Planck-Institute for Intelligent Systems (Shuttgurt, Germany)
  • Year and Date: 2015-08-30
  • Int'l Joint Research
• [Presentation] Variation of density of states and local structural transformation under the metamagnetic transition of FeRh (2015)
  • Author(s): Y. Wakisaka, Y. Uemura, T. Yokoyama, H. Asakura, H. Morimoto, M. Tabuchi, D. Ohshima, T. Kato, S. Iwata
  • Organizer: 16th International Conference on X-ray Absorption Fine Structure (XAFS16)
  • Place of Presentation: Karlsruhe Institute of Technology (Karlsruhe, Germany)
  • Year and Date: 2015-08-23
  • Int'l Joint Research
• [Presentation] Femto to Picosecond Transient States of a Photoexcited WO3 Photocatalyst (2015)
  • Author(s): Y. Uemura, D. Kido, Y. Wakisaka, H. Uehara, T. Ohba, Y. Niwa, S. Nozawa, T. Sato, K. Ichiyanagi, R. Fukaya, S. Adachi, T. Katayama, T. Togashi, S. Owada, K. Ogawa, M. Yabashi, S. Takakusagi, T. Yokoyama, B. Ohtani, K. Asakura
  • Organizer: 16th International Conference on X-ray Absorption Fine Structure (XAFS16)
  • Place of Presentation: Karlsruhe Institute of Technology (Karlsruhe, Germany)
  • Year and Date: 2015-08-23
  • Int'l Joint Research
• [Presentation] Photoexcited state of tungsten trioxide studied by picosecond and femtosecond XAFS (2015)
  • Author(s): Y. Uemura, D. Kido, Y. Wakisaka, H. Uehara, Ta. Ohba, Y. Niwa, S. Nozawa, T. Sato, K. Ichiyanagi, R. Fukaya, S. Adachi, T. Katayama, T. Togashi, S. Owada, K. Ogawa, M. Yabashi, S Takakusagi, T Yokoyama, B. Ohtani, K. Asakura
  • Organizer: XAFS16 Satelite meeting: Soft X-ray in Energy and Time (SXET)
  • Place of Presentation: Helmholtz Zentrum Berlin (Germany, Berlin)
  • Year and Date: 2015-08-20
  • Int'l Joint Research
• [Presentation] メタ磁性転移を示すFeRh薄膜の局所構造異常 (2015)
  • Author(s): 脇坂祐輝、上村洋平、横山利彦、朝倉博行、森本浩行、田渕雅夫、大島大輝、加藤剛志、岩田聡
  • Organizer: 第18回XAFS討論会
  • Place of Presentation: 高エネルギー加速器研究機構(茨城県つくば市)
  • Year and Date: 2015-07-29
• [Presentation] ポンプ-プローブXAFSによる 酸化タングステンの光励起過程の観測 (2015)
  • Author(s): 上村洋平、城戸大貴、脇坂祐輝、上原広充、大場惟史、丹羽尉博、野澤俊介、佐藤篤志、一柳光平、深谷亮、足立伸一、片山哲夫、矢橋牧名、高草木達、大谷文章、横山利彦、朝倉清高
  • Organizer: 第18回XAFS討論会
  • Place of Presentation: 高エネルギー加速器研究機構(茨城県つくば市)
  • Year and Date: 2015-07-29
• [Presentation] XAFS関連研究の現状と今後の展望：光源検討委員会での将来光源に関する議論 (2015)
  • Author(s): 横山利彦
  • Organizer: 第18回日本XAFS討論会(JXAFS18)
  • Place of Presentation: 高エネルギー加速器研究機構(茨城県つくば市)
  • Year and Date: 2015-07-29
  • Invited
• [Presentation] Variation of density of states and local structural transformation under the metamagnetic transition of FeRh (2015)
  • Author(s): Y. Wakisaka, Y. Uemura, T. Yokoyama, H. Asakura, H. Morimoto, M. Tabuchi, D. Ohshima, T. Kato, S. Iwata
  • Organizer: New Trends in X-ray Absorption and Photoelectron Spectroscopy and Multiple Scattering Theory (MSNano)
  • Place of Presentation: 千葉大学(千葉県千葉市)
  • Year and Date: 2015-07-28
  • Int'l Joint Research
• [Presentation] ELECTRONIC STATES AND STRUCTURAL CHANGES OF WO3 (2015)
  • Author(s): Y. Uemura, D. Kido, H. Uehara, Y. Wakisaka, T. Oba, Y. Niwa, S. Nozawa, T. Sato, K. Ichiyanagi, R. Fukaya, S. Adachi, T. Katayama, M. Yabashi, S. Takakusagi, T. Yokoyama, B. Ohtani, K. Asakura
  • Organizer: New Trends in X-ray Absorption and Photoelectron Spectroscopy and Multiple Scattering Theory (MSNano)
  • Place of Presentation: 千葉大学(千葉県千葉市)
  • Year and Date: 2015-07-28
  • Int'l Joint Research
• [Presentation] Ambient Pressure Hard X-ray Photoelectron Spectroscopy of Polymer Electrolyte Fuel Cells under Working Conditions (2015)
  • Author(s): T. Yokoyama, Y. Takagi
  • Organizer: New Trends in X-ray Absorption and Photoelectron Spectroscopy and Multiple Scattering Theory (MSNano)
  • Place of Presentation: 千葉大学(千葉県千葉市)
  • Year and Date: 2015-07-28
  • Int'l Joint Research / Invited
• [Presentation] Electronic and Magnetic States of Vanadium Phthalocyanine Monolayer and Multilayer Films Synthesized on Ag(111) (2015)
  • Author(s): K. Eguchi, T. Nakagawa, Y. Takagi and T. Yokoyama
  • Organizer: 22nd International Colloquium on Magnetic Films and Surfaces (ICMFS2015)
  • Place of Presentation: AGH University (Krakow, Poland)
  • Year and Date: 2015-07-12
  • Int'l Joint Research
• [Book] XAFSの基礎と応用 (2017)
  • Author(s): 編者：太田俊明・朝倉清高・阿部仁・稲田康宏・横山利彦
  • Total Pages: 352
  • Publisher: 講談社
  • ISBN: 9784061532953
• [Book] XAFS Techniques for Catalysis, Nanomaterials and Surfaces (2017)
  • Author(s): 上村洋平、横山利彦他
  • Total Pages: 556
  • Publisher: Springer
• [Book] X-ray and Neutron Techniques for Nanomaterials Characterization (2016)
  • Author(s): 上村洋平他
  • Total Pages: 830
  • Publisher: Springer
• [Remarks] Exploitation of Novel Spectroscopic Methods...
  • URL: https://www.ims.ac.jp/research/search/pdf/yokoyama.pdf
• [Remarks] 分子科学研究所物質分子科学研究領域電子構造研究部門横山グループ
  • URL: http://msmd.ims.ac.jp/yokoyama_g/
• [Remarks] 【プレスリリース】酸化タングステン光触媒の光キャリア超高速構造追跡に成功（横山グループら）
  • URL: https://www.ims.ac.jp/news/2015/12/10_3344.html
• [Remarks] 上村洋平助教が第21回日本放射光学会奨励賞を受賞
  • URL: https://www.ims.ac.jp/news/2017/01/19_3609.html
• [Remarks] 酸化タングステン光触媒の光キャリア超高速構造追跡に成功（横山グループら）
  • URL: https://www.ims.ac.jp/news/2015/12/10_3344.html