CRITICAL-BEHAVIOR IN MAGNETIC SUPERLATTICES

被引：49

作者：

HAI, T ^{[1
]}

LI, ZY ^{[1
]}

LIN, DL ^{[1
]}

GEORGE, TF ^{[1
]}

机构：

[1] SUNY BUFFALO,DEPT PHYS & ASTRON,BUFFALO,NY 14260

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1991年 / 97卷 / 1-3期

关键词：

D O I：

10.1016/0304-8853(91)90186-E

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on the effective field theory with correlations, the critical behavior of a magnetic superlattice consisting of two different ferromagnets is examined. A simple cubic Ising model with nearest-neighbor coupling is assumed. It is found that there exists a critical value of the interface exchange coupling above which the interface magnetism appears. The critical temperature of the superlattice is studied as a function of the thickness of the constituents in a unit cell and of the exchange coupling energies in each material. A phase diagram is also given.

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页码：227 / 234

页数：8

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