Equilibrium shape of two-dimensional islands under stress

被引：101

作者：

Li, A ^{[1
]}

Liu, F ^{[1
]}

Lagally, MG ^{[1
]}

机构：

[1] Univ Wisconsin, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.85.1922

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the equilibrium shape anisotropy of two-dimensional islands in heteroepitaxial growth depends on island size, a consequence of the presence of strain. Even in homoepitaxy, in which the island shape has conventionally been equated with the ratio of step energies, a substrate surface stress anisotropy can influence island shape.

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页码：1922 / 1925

页数：4

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