Non-stochastic behavior of atomic surface diffusion on Cu(111) at all temperatures
Other Condensed Matter
2016-08-16 v1
Abstract
Atomic diffusion is usually understood as a succession of random, independent displacements of an adatom over the surface's potential energy landscape. Nevertheless, an analysis of Molecular Dynamics simulations of self-diffusion on Cu(111) demonstrates the existence of different types of correlations in the atomic jumps at all temperatures. Thus, the atomic displacements cannot be correctly described in terms of a random walk model. This fact has a profound impact on the determination and interpretation of diffusion coefficients.
Cite
@article{arxiv.cond-mat/0403565,
title = {Non-stochastic behavior of atomic surface diffusion on Cu(111) at all temperatures},
author = {J. Ferrón and L. Gómez and J. J. de Miguel and R. Miranda},
journal= {arXiv preprint arXiv:cond-mat/0403565},
year = {2016}
}
Comments
5 figures