Effect of the shot-to-shot variation on charge migration induced by sub-fs x-ray free-electron laser pulses
Entity
UAM. Departamento de QuímicaPublisher
American Physical SocietyDate
2023-04-01Citation
10.1103/PhysRevResearch.5.023092
Physical Review Research 5.2 (2023): 023092
ISSN
2643-1564 (online)DOI
10.1103/PhysRevResearch.5.023092Funded by
Y2018 NMT-5028, PID2019-105458RB-I00, CEX2020-001039-S, CEX2018-000805-MProject
Comunidad de Madrid. Y2018/NMT-5028/FULMATEN-CM; Gobierno de España. PID2019-105458RB-I00; Gobierno de España. CEX2020-001039-S; Gobierno de España. CEX2018-000805-MEditor's Version
https://doi.org/10.1103/PhysRevResearch.5.023092Subjects
Electrons; Free Electron Lasers; Stochastic Systems; QuímicaRights
© 2023 authorsAbstract
X-ray free-electron lasers (XFELs) are now able to provide tunable pairs of intense sub-fs pulses in the soft x-ray regime, paving the way for time-resolved investigations of attosecond charge migration in molecules. However, the stochastic shot-to-shot variation of the XFEL pulses may degrade and eventually hide the observable features. We show by means of state-of-the-art calculations that the damping of the charge migration induced by 260 eV pulses in p-aminophenol due to the shot-to-shot variation of pulses generated at the Linac Coherent Light Source is negligible in comparison to the natural damping due to the intrinsic fluctuation of the initial molecular geometry. This result gives us confidence in the utility of XFEL sub-fs pulses for the measurement of charge migration and other ultrafast charge dynamics
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Google Scholar:Grell, Gilbert
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Guo, Zhaoheng
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Driver, Taran
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Decleva, Piero
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Plésiat, Etienne
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Picón Álvarez, Antonio
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González Vázquez, Jesús
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Walter, Peter
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Marangos, Jonathan P.
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Cryan, James P.
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Marinelli, Agostino
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Palacios Cañas, Alicia
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Martín García, Fernando
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