STRUCTURE OF THE K ADSORBED SI(001)2X1 SURFACE STUDIED BY LEED

被引：18
|
作者：
URANO, T
UCHIDA, Y
HONGO, S
KANAJI, T
机构：
[1] Faculty of Engineering, Kobe University, Kobe, 657, Rokko-dai, Nada
来源：
SURFACE SCIENCE | 1991年 / 242卷 / 1-3期
关键词：
D O I：
10.1016/0039-6028(91)90238-N
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 surface structures of K adsorbed Si(001))2 x 1 surfaces have been studied by the dynamical analysis of low-energy electron diffraction (LEED) beam intensity versus electron energy curves (the so-called I-V curves). A reliability factor (R-factor) analysis has been carried out for three models of the site of the K atoms, that is, a pedestal site model (Levine's model), a double layer model, and a cave site model. Although the difference of the numerical value of R is not so large among these models, the double layer model indicates the smallest value within a symmetric dimer model of the topmost Si atoms.
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收藏
页码：39 / 44
页数：6
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