Hexagonally reconstructed islands and anisotropic diffusion for Au/Au(100)

被引：14

作者：

Nomura, M

Wang, XQ

机构：

[1] Clark Atlanta Univ, Dept Phys, Atlanta, GA 30314 USA

[2] Clark Atlanta Univ, Ctr Theoret Studies Phys Syst, Atlanta, GA 30314 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.81.2739

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The homoepitaxial island growth on hexagonally reconstructed Au(100) is studied using molecular dynamics based on a well-tested many-atom interatomic potential. Our study reveals that the stable islands of rectangular shape are hexagonally reconstructed in conformity with the patterns of the reconstructed Au(100) surface and suggests the "magic" stable width for the reconstructed islands in agreement with experimental observations. Furthermore, our results on the adatom diffusion indicate that the experimentally observed strong anisotropic effect is attributed to the long-range exchange diffusion. [S0031-9007(98)07233-0].

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收藏

页码：2739 / 2742

页数：4

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