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oai:gredos.usal.es:10366/1466072025-04-30T20:35:49Zcom_10366_133237com_10366_4512com_10366_3823col_10366_133238

00925njm 22002777a 4500 dc Picón,Antonio author Bostedt, C. author Hernández García, Carlos author Plaja Rustein, Luis author 2018 [EN]Novel perspectives of controlling molecular systems have recently arisen from the possibility of generating attosecond pulses in the ultraviolet regime and tailoring electron dynamics in its natural time scale. The cornerstone mechanism is the so-called charge migration, he production of a coherent charge transfer with subfemtosecond oscillations across a molecule. Typically, charge migration is induced by the ionization of valence molecular orbitals. However, recent technological developments allow the generation of attosecond pulses in the x-ray regime. In this case, the absorption of photons creates core-hole states. In light elements, core-hole states mainly decay by Auger processes that, driven by electron correlations, involve valence orbitals. We theoretically demonstrate in a fluoroacetylene molecule a double-hole charge migration triggered by attosecond core-electron photoionization, followed by Auger electron relaxations. This opens a new route for inducing with x rays charge transfer processes in the subfemtosecond time scale. Picón, A., Bostedt, C., Hernández-García, C., & Plaja, L. (2018). Auger-induced charge migration. Physical Review A, 98(4). https://doi.org/10.1103/PhysRevA.98.043433 2469-9926 http://hdl.handle.net/10366/146607 10.1103/PhysRevA.98.043433 2469-9934 Molecular systems Migration Electron Auger electron X rays Auger-induced charge migration