STRUCTURES OF STEPS AND APPEARANCES OF (311)FACETS ON SI(100) SURFACES

被引：105

作者：

OSHIYAMA, A

机构：

[1] Fundamental Research Laboratories, NEC Corporation, Miyukigaoka

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.74.130

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

First-principles total-energy calculations for structures and reactivities of single-, double-, and quadrilayer steps on Si(100) surfaces are presented. It is found that an activation energy for diffusion of an adatom on an upper terrace increases near a step edge and that rebonded and nonrebonded steps show bistability. A new reaction pathway in which the rebonded double-layer steps bunch and lead to a {311} facet is found to be energetically favorable. © 1994 The American Physical Society.

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页码：130 / 133

页数：4

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