LEED ANALYSIS OF THE ADSORPTION STRUCTURE OF C(2X2)S/NI(100) INCLUDING SUBSTRATE MODIFICATIONS

被引：31
|
作者：
STARKE, U
BOTHE, F
OED, W
HEINZ, K
机构：
[1] Universität Erlangen-Nürnberg, D-8520 Erlangen
来源：
SURFACE SCIENCE | 1990年 / 232卷 / 1-2期
关键词：
D O I：
10.1016/0039-6028(90)90587-X
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：
We present LEED structure determinations of c(2 × 2)S Ni(100) both by a conventional R-factor analysis and a recently developed direct method. The adsorption height of sulfur in the hollow site results to be 1.30 ± 0.02 Å. The adsorbate is found to induce almost no substrate reconstruction and only a slight 2 ± 1 % expansion of the first substrate layer distance. The results are compared to earlier structure determinations, to theoretical predictions and to the structure recently obtained for the similar system c(2 × 2)O Ni(100). © 1990.
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收藏
页码：56 / 62
页数：7
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