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Título
Auger-induced charge migration
Autor(es)
Materia
Molecular systems
Migration
Electron
Auger electron
X rays
Clasificación UNESCO
3307.07 Dispositivos láser
22 Física
Fecha de publicación
2018
Editor
Physical Review A
Citación
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
Resumen
[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.
URI
ISSN
2469-9926
DOI
10.1103/PhysRevA.98.043433
Versión del editor
Colecciones
- ALF. Artículos [314]