Tight-binding Ising-model study of chemisorption effects on surface segregation in transition-metal alloys

被引：2
|
作者：
Modrak, P
机构：
[1] Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw
来源：
SURFACE SCIENCE | 1996年 / 349卷 / 01期
关键词：
alloys; chemisorption; Ising models; surface segregation;
D O I：
10.1016/0039-6028(95)01334-2
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 tight-binding Ising model is generalized for the system consisting of a transition-metal alloy with chemisorbed adatoms. The effect of chemisorption on the surface segregation is calculated within the scope of a semi-infinite linear chain model for hydrogen chemisorbed on a Cu-Ni alloy. The charge-neutrality condition is incorporated into the model and its effect on the calculated surface segregation is demonstrated.
引用
收藏
页码：L128 / L132
页数：5
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