A simple model for the magnetocrystalline anisotropy in mixed ferrite nanoparticles

被引：29

作者：

de Biasi, R. S. ^{[1
]}

Cardoso, L. H. G. ^{[1
]}

机构：

[1] Inst Mil Engn, Secao Engn Mecan & Mat, BR-22290270 Rio De Janeiro, RJ, Brazil

来源：

PHYSICA B-CONDENSED MATTER | 2012年 / 407卷 / 18期

关键词：

Magnetic nanoparticles; Mossbauer spectroscopy; MAGNETIC-ANISOTROPY; SPECTRA;

D O I：

10.1016/j.physb.2012.06.017

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A simple model, based on the relative occupancy of tetrahedral and octahedral sites by different cations, is proposed for the magnetocrystalline anisotropy of mixed ferrite nanoparticles. According to this model, the total magnetocrystalline anisotropy is the weighted average of the contributions of the anisotropies of Fe3+ and M2+ ions in A and B sites. The model predictions are confirmed in the case of cobalt-zinc ferrite. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：3893 / 3896

页数：4

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