title: Autoionization mediated by electron transfer.
abstract: Electron-electron coincidence spectra of Ar-Kr clusters after photoionization have been measured. An electron with the kinetic energy range from 0 to approximately 1 eV is found in coincidence with the Ar 3s cluster photoelectron. The low kinetic energy electron can be attributed to an Ar + Kr+ + Kr+ final state which forms after electron transfer mediated decay. This autoionization mechanism results from a concerted transition involving three different atoms in a van der Waals cluster; it was predicted theoretically, but hitherto not observed.
authors.affiliation: Max-Planck-Institut für Plasmaphysik, EURATOM Association, Boltzmannstr 2, 85748 Garching, Germany.
authors.forename: Marko
authors.initials: M
authors.lastname: Förstel
authors.forename: Melanie
authors.initials: M
authors.lastname: Mucke
authors.forename: Tiberiu
authors.initials: T
authors.lastname: Arion
authors.forename: Alex M
authors.initials: AM
authors.lastname: Bradshaw
authors.forename: Uwe
authors.initials: U
authors.lastname: Hergenhahn