Model of surface instabilities induced by stress
Materials Science
2009-10-31 v1 Statistical Mechanics
Abstract
We propose a model based on a Ginzburg-Landau approach to study a strain relief mechanism at a free interface of a non-hydrostatically stressed solid, commonly observed in thin-film growth. The evolving instability, known as the Grinfeld instability, is studied numerically in two and three dimensions. Inherent in the description is the proper treatment of nonlinearities. We find these nonlinearities can lead to competitive coarsening of interfacial structures, corresponding to different wavenumbers, as strain is relieved. We suggest ways to experimentally measure this coarsening.
Keywords
Cite
@article{arxiv.cond-mat/9806278,
title = {Model of surface instabilities induced by stress},
author = {Judith Mueller and Martin Grant},
journal= {arXiv preprint arXiv:cond-mat/9806278},
year = {2009}
}
Comments
4 pages (3 figures included)