Structure determination of mixed clusters by surface scattering
Laboratoire de Physique des Interfaces et des Couches Minces, CNRS, École Polytechnique, 91128 Palaiseau Cedex,
Published online: 15 April 2001
In this paper, we investigate the global structure of mixed clusters created by coexpansion. To determine the relative dopant sites within the mixed clusters, we take advantage of the strong dependence of the cluster/surface collision dynamics on the incident mixed cluster structure. Using both experiments and molecular dynamic simulations, we show that the coexpansion process leads to the most stable cluster structure for clusters. This structure corresponds to an annealed structure and can be characterized as a nearly homogeneous mixture throughout the cluster with a thin argon coating.
PACS: 36.40.-c – Atomic and molecular clusters / 34.30.+h – Intramolecular energy transfer; intramolecular dynamics; dynamics of van der Waals molecules
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001