title: Interatomic electronic decay driven by nuclear motion.
abstract: The interatomic electronic decay after inner-valence ionization of a neon atom by a single photon in a neon-helium dimer is investigated. The excited neon atom relaxes via interatomic Coulombic decay and the excess energy is transferred to the helium atom and ionizes it. We show that the decay process is only possible if the dimer's bond stretches up to 6.2 Å, i.e., to more than twice the equilibrium interatomic distance of the neutral dimer. Thus, it is demonstrated that the electronic decay, taking place at such long distances, is driven by the nuclear motion.
authors.affiliation: Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Germany. Nicolas.Sisourat@pci.uni-heidelberg.de
authors.forename: Nicolas
authors.initials: N
authors.lastname: Sisourat
authors.forename: Hendrik
authors.initials: H
authors.lastname: Sann
authors.forename: Nikolai V
authors.initials: NV
authors.lastname: Kryzhevoi
authors.forename: Přemysl
authors.initials: P
authors.lastname: Kolorenč
authors.forename: Tilo
authors.initials: T
authors.lastname: Havermeier
authors.forename: Felix
authors.initials: F
authors.lastname: Sturm
authors.forename: Till
authors.initials: T
authors.lastname: Jahnke
authors.forename: Hong-Keun
authors.initials: HK
authors.lastname: Kim
authors.forename: Reinhard
authors.initials: R
authors.lastname: Dörner
authors.forename: Lorenz S
authors.initials: LS
authors.lastname: Cederbaum