Si(001) c(4 x 2)-p(2 x 2) surface phase transitions induced by electric fields and doping

被引:3
|
作者
Schmidt, W. G. [1 ]
Seino, K. [1 ]
机构
[1] Univ Jena, Inst Festkorpertheorie & Theoret Opt, D-07743 Jena, Germany
关键词
density functional theory; silicon surface; scanning tunneling microscopy; phase transition;
D O I
10.1016/j.cap.2005.11.012
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Density functional calculations on the relative stability of c(4 x 2) and p(2 x 2) reconstructed Si(001) surfaces exposed to external electric fields and charge injection are presented. Electric fields parallel to the [0 0 1] direction or electrons inserted into surface states are found to favor the p(2 x 2) over the c(4 x 2) reconstruction. This explains recent experimental findings for Si and Ge(001). (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:331 / 333
页数:3
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