The Structures and Melting Properties of the Al-W Mixed Clusters

Abstract

Through the classical molecular dynamics, the melting properties of the the tungsten and aluminum mixed clusters are explored. By using simulated annealing the structure of the mixed cluster is obtained. It is found that the Al atoms tend to locate on the surface of the clusters. The melting behaviors of the clusters are analyzed in detail by the atom-resolved Lindemann index. The curves of Lindemann index show that the melting process of the can experience three steps which is not common in the melting process of the nanoclusters.