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| 001 | 631513 | ||
| 005 | 20250715151532.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.jpclett.5c01062 |2 doi |
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| 100 | 1 | _ | |a Uemura, Yohei |0 P:(DE-H253)PIP1084874 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Electronic and Structural Relaxation of Photoexcited WO$_3$ Observed by Femtosecond Resonant X-ray Emission Spectra |
| 260 | _ | _ | |a Washington, DC |c 2025 |b ACS |
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| 520 | _ | _ | |a Photoexcited states of tungsten trioxide (WO$_3$) were observed using femtosecond high-energy-resolution fluorescence detection X-ray Absorption Spectra (HERFD-XAS) and resonant X-ray emission spectra (RXES). In the initial state of the photoexcitation (∼100 fs), the W L$_3$ edge XAS shifts to lower energy and the energy levels of the t$_{2g}$ and e$_g$ peaks are modulated due to the photoexcited electrons in the conduction band. The electronic state of the photoexcited W atoms is modified by 500 fs. The crystal field splitting between the t$_{2g}$ and e$_g$ peaks shrinks by 500 fs, which indicates local structural changes around the W atoms due to the formation of polarons. HERFD-XAS and RXES provide more details about the early state of the photoexcited states of WO$_3$. This work demonstrates that the detailed dynamics of 5d elements in the femtosecond range can be addressed with HERFD-XAS/RXES. |
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| 700 | 1 | _ | |a Yamamoto, Kohei |b 1 |
| 700 | 1 | _ | |a Niwa, Yasuhiro |b 2 |
| 700 | 1 | _ | |a Buttiens, Thomas |b 3 |
| 700 | 1 | _ | |a Elnaggar, Hebatalla |b 4 |
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| 700 | 1 | _ | |a Milne, Christopher J. |b 10 |
| 700 | 1 | _ | |a Yokoyama, Toshihiko |b 11 |
| 773 | _ | _ | |a 10.1021/acs.jpclett.5c01062 |g Vol. 16, no. 24, p. 6138 - 6145 |0 PERI:(DE-600)2522838-9 |n 24 |p 6138 - 6145 |t The journal of physical chemistry letters |v 16 |y 2025 |x 1948-7185 |
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