Diffusion of adatom dimers on (111) surface of face centred crystals: A molecular dynamics study

Abstract

Using computer simulation by the technique of molecular dynamics, we have studied the diffusion of adatom dimers on a (111) Lennard-Jones surface. In an intermediate range of temperatures (from 0.3 T m up to 0.6 T m, where T m is the substrate melting point) simultaneous multiple jumps for both atoms of the dimer are shown to occur.