Structure determination of mixed clusters by surface scattering

In this paper, we investigate the global structure of mixed clusters create d by coexpansion. To determine the relative dopant sites within the mixed c lusters, we take advantage of the strong dependence of the cluster/surface collision dynamics on the incident mixed cluster structure. Using both expe riments and molecular dynamic simulations, we show that the coexpansion pro cess leads to the most stable cluster structure for AT((880))Kr((120)) clus ters. This structure corresponds to an annealed structure and can be charac terized as a nearly homogeneous mixture throughout the cluster with a thin argon coating.