Structural, thermal and magnetic properties of Ni1-xMnxFe2O4 nanoferrites

被引：42

作者：

Shobana, M. K. ^{[1
]}

Sankar, S. ^{[1
]}

机构：

[1] Anna Univ, Dept Phys, Chennai 600025, Tamil Nadu, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 321卷 / 14期

关键词：

Sol-gel preparation; Nanomaterials; Spinel structure; X-ray technique;

D O I：

10.1016/j.jmmm.2009.01.046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the structural, thermal and magnetic properties of Ni1-xMnxFe2O4 are presented. It is observed that high concentration of Mn2+ ions into NiFe2O4 tends to reduce the particle size. Calcination at 500 degrees C has resulted in the growth of Ni1-xMnxFe2O4 nanoparticles, but the calcination at 900 degrees C has led to the evaporation of the majorities of the polyvinyl alcohol. After calcination at 900 degrees C, crystallographically oriented NiMnFe2O4 nanoparticles are formed. These Ni1-xMnxFe2O4 nanoparticles show hysteresis behaviour upon magnetization. On the other hand, saturation magnetization (Ms) values decreases with increasing Mn content in ferrite due to the influence of Mn2+ ion in the sub lattice. (C) 2009 Published by Elsevier B.V.

引用

页码：2125 / 2128

页数：4

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