FERROMAGNETISM IN SMALL CLUSTERS

被引：86

作者：

MERIKOSKI, J ^{[1
]}

TIMONEN, J ^{[1
]}

MANNINEN, M ^{[1
]}

JENA, P ^{[1
]}

机构：

[1] VIRGINIA COMMONWEALTH UNIV,DEPT PHYS,RICHMOND,VA 23284

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.66.938

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetization of small ferromagnetic clusters at finite temperatures has been studied using the Ising model and Monte Carlo techniques. The magnetization of finite clusters is reduced from the bulk value, and increases with the external magnetic field and with the cluster size. The results explain qualitatively the recent observations by de Heer, Milani, and Chatelain of the reduction with decreasing cluster size of the average magnetic moment in small iron clusters.

引用

页码：938 / 941

页数：4

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