Auger-induced charge migration

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.


Published in:
Physical Review A, 98, 4, 043433
Year:
Oct 26 2018
Publisher:
College Pk, AMER PHYSICAL SOC
ISSN:
2469-9926
2469-9934
Keywords:
Laboratories:




 Record created 2018-12-13, last modified 2019-03-19


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)