title: Dynamics of Photoelectrons and Structural Changes of Tungsten Trioxide Observed by Femtosecond Transient XAFS.
abstract: The dynamics of the local electronic and geometric structures of WO3 following photoexcitation were studied by femtosecond time-resolved X-ray absorption fine structure (XAFS) spectroscopy using an X-ray free electron laser (XFEL). We found that the electronic state was the first to change followed by the local structure, which was affected within 200 ps of photoexcitation.
authors.affiliation: Institute for Molecular Science, Myodaiji-cho, Okazaki, 444-8585, Japan.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Uemura
authors.affiliation: Institute for Catalysis Hokkaido University, Sapporo, 001-0021, Japan.
authors.forename: Daiki
authors.initials: D
authors.lastname: Kido
authors.affiliation: Institute for Molecular Science, Myodaiji-cho, Okazaki, 444-8585, Japan.|Graduate School of Science, Nagoya University, Nagoya, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Wakisaka
authors.affiliation: Institute for Catalysis Hokkaido University, Sapporo, 001-0021, Japan.
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Uehara
authors.affiliation: Institute for Catalysis Hokkaido University, Sapporo, 001-0021, Japan.
authors.forename: Tadashi
authors.initials: T
authors.lastname: Ohba
authors.affiliation: PF, IMSS, KEK, Tsukuba, 305-0801, Japan.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Niwa
authors.affiliation: PF, IMSS, KEK, Tsukuba, 305-0801, Japan.
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Nozawa
authors.affiliation: PF, IMSS, KEK, Tsukuba, 305-0801, Japan.
authors.forename: Tokushi
authors.initials: T
authors.lastname: Sato
authors.affiliation: PF, IMSS, KEK, Tsukuba, 305-0801, Japan.
authors.forename: Kohei
authors.initials: K
authors.lastname: Ichiyanagi
authors.affiliation: PF, IMSS, KEK, Tsukuba, 305-0801, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Fukaya
authors.affiliation: PF, IMSS, KEK, Tsukuba, 305-0801, Japan.
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Adachi
authors.affiliation: JASRI, Kouto, Sayo-cho, Hyogo, 679-5198, Japan.
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Katayama
authors.affiliation: JASRI, Kouto, Sayo-cho, Hyogo, 679-5198, Japan.
authors.forename: Tadashi
authors.initials: T
authors.lastname: Togashi
authors.affiliation: RIKEN SPring-8 Center, Kouto, Sayo-cho, Hyogo, 679-5148, Japan.
authors.forename: Sigeki
authors.initials: S
authors.lastname: Owada
authors.affiliation: RIKEN SPring-8 Center, Kouto, Sayo-cho, Hyogo, 679-5148, Japan.
authors.forename: Kanade
authors.initials: K
authors.lastname: Ogawa
authors.affiliation: RIKEN SPring-8 Center, Kouto, Sayo-cho, Hyogo, 679-5148, Japan.
authors.forename: Makina
authors.initials: M
authors.lastname: Yabashi
authors.affiliation: Département Matériaux Nanosciences,Institut de Physique de Rennes, Université de Rennes1, 263 Av. du Général Leclerc, 35042, Rennes cedex, France.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Hatada
authors.affiliation: Institute for Catalysis Hokkaido University, Sapporo, 001-0021, Japan.
authors.forename: Satoru
authors.initials: S
authors.lastname: Takakusagi
authors.affiliation: Institute for Molecular Science, Myodaiji-cho, Okazaki, 444-8585, Japan.
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Yokoyama
authors.affiliation: Institute for Catalysis Hokkaido University, Sapporo, 001-0021, Japan.
authors.forename: Bunsho
authors.initials: B
authors.lastname: Ohtani
authors.affiliation: Institute for Catalysis Hokkaido University, Sapporo, 001-0021, Japan. askr@cat.hokudai.ac.jp.
authors.forename: Kiyotaka
authors.identifier: http://orcid.org/0000-0003-1077-5996
authors.initials: K
authors.lastname: Asakura
keywords: X-ray free electron laser (XFEL); XAFS; photoexcitation; tungsten trioxide; ultrafast spectroscopy