Model of surface instabilities induced by stress

被引：100

作者：

Müller, J ^{[1
]}

Grant, M ^{[1
]}

机构：

[1] McGill Univ, Dept Phys, Ctr Phys Mat, Montreal, PQ H3A 2T8, Canada

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.82.1736

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a model based on a Ginzburg-Landau approach to study a strain relief mechanism at a free interface of a nonhydrostatically 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 that these nonlinearities can lead to competitive coarsening of interfacial structures, corresponding to different wave numbers, as strain is relieved. We suggest ways to experimentally measure this coarsening.

引用

页码：1736 / 1739

页数：4

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