Fast diffusion of a Lennard-Jones cluster on a crystalline surface
Materials Science
2009-10-30 v1
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
Cite
@article{arxiv.cond-mat/9703181,
title = {Fast diffusion of a Lennard-Jones cluster on a crystalline surface},
author = {Pierre Deltour and Jean-Louis Barrat and Pablo Jensen},
journal= {arXiv preprint arXiv:cond-mat/9703181},
year = {2009}
}
Comments
latex, 5 pages with figures