Publikace ÚTF

Interatomic Electronic Decay Driven by Nuclear Motion

Sisourat N.; Sann H.; Kryzhevoi N. V.; Kolorenč P.; Havermeier T.; Sturm F.

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 A ° , 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.
typ:article
journal:Phys. Rev. Lett.
volume:105
pages:17340
year:2010
pacs:36.40.c, 34.80.Dp

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