Magnetic moments of iron clusters: a simple theoretical model

被引：16

作者：

Aguilera-Granja, F ^{[1
]}

Montejano-Carrizales, JM

Moran-Lopez, JL

机构：

[1] Univ Valladolid, Fac Ciencias, Valladolid, Spain

[2] Univ Autonoma San Luis Potosi, Inst Fis, San Luis Potosi 78000, Mexico

来源：

PHYSICS LETTERS A | 1998年 / 242卷 / 4-5期

关键词：

D O I：

10.1016/S0375-9601(98)00184-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a simple model for the study of ferromagnetic transition metal clusters. Based on Fridel's model and on the geometrical characteristics, we obtain analytical expressions for the cluster average magnetic moment (<(mu)over bar>(N)) as a function of the number of atoms in bcc structures. The oscillatory behavior of <(mu)over bar>(N) as a function of cluster size reported experimentally in Fe clusters is reproduced by considering spherical bcc clusters. We briefly comment on the influence of ellipsoidal shape clusters on the magnetic moment measurements. (C) 1998 Elsevier Science B.V.

引用

页码：255 / 260

页数：6

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