SPIN-WAVES IN A SEMI-INFINITE HEISENBERG-FERROMAGNET WITH AN IMPURITY LAYER

被引：5

作者：

CHEN, NN

COTTAM, MG

机构：

[1] Physics Department, University of Western Ontario, London

来源：

JOURNAL OF APPLIED PHYSICS | 1990年 / 67卷 / 09期

关键词：

D O I：

10.1063/1.345858

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A Heisenberg model is employed in a theoretical study of the effect of a magnetic impurity layer embedded in a semi-infinite ferromagnet. Using a Green's function formalism we find that, in addition to bulk spin-wave modes, there may be localized spin-wave modes associated with the impurity layer and with the surface. The spin correlation functions are also calculated as a function of the impurity-layer distance from the surface. Results are also deduced for the temperature dependence of the magnetization in different layers of the ferromagnet.

引用

页码：5483 / 5485

页数：3

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