title: Interface identification by non-local autoionization transitions.
abstract: We use an autoionization process that involves ultrafast energy transfer to neighbouring sites to characterize the formation of NeAr van der Waals bonds in clusters formed by a coexpansion of both gases. This autoionization process, the so-called interatomic or intermolecular coulombic decay (ICD), is ubiquitous in weakly bonded systems. The energy of the electron being emitted in the ICD process is shown to be characteristic of the two neighbouring entities and is therefore suggested as a new means for structural investigation, such as interface identification, of weakly bonded complexes.
authors.affiliation: Max-Planck-Institute for Plasma Physics, EURATOM Association, Boltzmannstr. 2, 85748, Garching, Germany.
authors.forename: Silko
authors.initials: S
authors.lastname: Barth
authors.forename: Simon
authors.initials: S
authors.lastname: Marburger
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Joshi
authors.forename: Volker
authors.initials: V
authors.lastname: Ulrich
authors.forename: Oliver
authors.initials: O
authors.lastname: Kugeler
authors.forename: Uwe
authors.initials: U
authors.lastname: Hergenhahn
mesh_terms: D001128:Argon / Q000737:chemistry*; D016000:Cluster Analysis; D003198:Computer Simulation; D004583:Electrons; D004735:Energy Transfer; D007477:Ions / Q000737:chemistry*; D007700:Kinetics; D008956:Models, Chemical; D009356:Neon / Q000737:chemistry*; D011789:Quantum Theory; D013816:Thermodynamics
chemical_list: D007477:Ions; D009356:Neon; D001128:Argon