Nonuniversal mound formation in nonequilibrium surface growth
Statistical Mechanics
2009-10-31 v1 Materials Science
Abstract
We demonstrate, using well-established nonequilibrium limited-mobility solid-on-solid growth models, that mound formation in the dynamical surface growth morphology does not necessarily imply the existence of a surface edge diffusion bias (the Schwoebel barrier). We find mounded morphologies in several nonequilibrium growth models which incorporate no Schwoebel barrier. Our numerical results indicate that mounded morphologies in nonequilibrium surface growth may arise from a number of distinct physical mechanisms, with the Schwoebel instability being one of them.
Keywords
Cite
@article{arxiv.cond-mat/0002465,
title = {Nonuniversal mound formation in nonequilibrium surface growth},
author = {S. Das Sarma and P. Punyindu and Z. Toroczkai},
journal= {arXiv preprint arXiv:cond-mat/0002465},
year = {2009}
}
Comments
5 pages, 4 ps figures included, accepted for publication in Surface Science Letters