Self-assembly of two-dimensional islands via strain-mediated coarsening

被引：71

作者：

Liu, F ^{[1
]}

Li, AH ^{[1
]}

Lagally, MG ^{[1
]}

机构：

[1] Univ Wisconsin, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.87.126103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate two distinctive effects of strain-induced island-island interaction on island size and spatial distribution during coarsening of 2D islands. When coarsening proceeds via only mass transport between islands, the interaction broadens the island size distribution, leading to a power-law dependence of island size uniformity on island number density. When coarsening proceeds via island migration in addition to mass transport between islands, the interaction can effectively direct island motion through island edge diffusion, leading to self-organized formation of a regular array of islands with both uniform size and spacing.

引用

页码：126103/1 / 126103/4

页数：4

共 21 条

[1]

Barabasi AL, 1997, APPL PHYS LETT, V70, P2565, DOI 10.1063/1.118920

[2] Self-similar spatial ordering of clusters on surfaces during Ostwald ripening [J].