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

页码：L128 / L132

页数：5

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