Ionic disorder and Neel temperature in ZnFe2O4 nanoparticles

被引：113

作者：

Goya, GF ^{[1
]}

Rechenberg, HR ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 196卷

基金：

巴西圣保罗研究基金会;

关键词：

nanoparticles; ball milling; ferrites;

D O I：

10.1016/S0304-8853(98)00723-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic properties of ultrafine ZnFe2O4 particles obtained from mechanosynthesis of the precursor oxides are presented. The ordering temperature of as-milled sample is T-N approximate to 115(10) K, and extends over a Delta T approximate to 60 K range. This behavior can be explained by oxygen vacancies and local disorder at Fe sites resulting from the milling process. Magnetic coupling between ordered and disordered phases is discussed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：191 / 192

页数：2

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