Fast diffusion of a Lennard-Jones cluster on a crystalline surface

Preprint

20 March 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9703181

Abstract

We present a Molecular Dynamics study of large Lennard-Jones clusters evolving on a crystalline surface. The static and the dynamic properties of the cluster are described. We find that large clusters can diffuse rapidly, as experimentally observed. The role of the mismatch between the lattice parameters of the cluster and the substrate is emphasized to explain the diffusion of the cluster. This diffusion can be described as a Brownian motion induced by the vibrationnal coupling to the substrate, a mechanism that has not been previously considered for cluster diffusion.

Keywords

LENNARD JONES CLUSTER
CRYSTALLINE SURFACE
MOLECULAR DYNAMICS
JONES CLUSTERS
FAST DIFFUSION

All Related Versions

Version 1, 1997-03-20, ArXiv
Published version: Physical Review Letters, 78 (24), 4597.

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