CURIE-TEMPERATURE FOR A FINITE ALTERNATING MAGNETIC SUPERLATTICE

被引：50
作者：
SY, HK
OW, MH
机构：
[1] Dept. of Phys., Nat. Univ. of Singapore
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 27期
关键词：
D O I：
10.1088/0953-8984/4/27/008
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We study a spin-one-half Ising model of an alternating magnetic superlattice. We use the mean-field approximation and express our results for the Curie temperature in terms of two types of determinants. The dependence of the Curie temperature on the film thickness is obtained. The effects of surface modification on finite superlattices are studied numerically for two types of modification to the surface exchange constants.
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页码：5891 / 5900
页数：10
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