The adsorption of Au on Si(111)-7x7 surface: A first-principles study

被引：6
|
作者：
Zhou, Yinghui [1 ]
Wu, Qi-Hui [1 ]
Li, Shuping [1 ]
Kang, Junyong [1 ]
机构：
[1] Xiamen Univ, Dept Phys, Semicond Photon Res Ctr, Xiamen 361005, Peoples R China
来源：
SURFACE REVIEW AND LETTERS | 2007年 / 14卷 / 04期
关键词：
adsorption; Au; Si(111)-7 x 7; first-principles calculation;
D O I：
10.1142/S0218625X07010020
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The initial stage of Au adsorption on the Si(111)-7 x 7 surface has been investigated by the first principles calculations. Different configurations have been considered and the high coordination sites were determined as the most possible places for the Au adsorption. The diffusion barriers for Au atoms on the Si surface have also been evaluated. The results indicated that the Au atoms could diffuse from the top of the Si rest atoms to the high coordination sites only by overcoming a small barrier of 0.11 eV.
引用
收藏
页码：657 / 660
页数：4
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