Influence of Mg2+ substitution on magnetic properties of Co-Fe-Cr-O spinel ferrite system

被引：23

作者：

Shukla, SJ

Jadhav, KM

Bichile, GK ^{[1
]}

机构：

[1] Marathwada Univ, Dept Phys, Aurangabad 431004, Maharashtra, India

[2] Deogiri Coll, PG & Res Ctr Phys, Aurangabad 431005, Maharashtra, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 195卷 / 03期

关键词：

ferrites; AC susceptibility; magnetization; Mossbauer; Neel's two sublattice method;

D O I：

10.1016/S0304-8853(98)01148-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural and magnetic properties of MgxCo1-xFeCrO4 (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6) system have been investigated by X-ray diffraction, magnetization, AC susceptibility and Mossbauer spectroscopy techniques. Magnetization measurements exhibit Neel's collinear ferrimagnetic structure for the range studied, which is further supported by variation of Neel temperature with Mg-content. The Neel temperatures calculated theoretically are in agreement with those deduced experimentally from AC susceptibility measurements. Mossbauer results suggest existence of two types of spin-spin relaxation, smaller magnetic clusters relaxing at a faster rate as compared to the larger ones and giving rise to a quadrupole doublet for x < 0.6 at 300 K. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：692 / 698

页数：7

共 22 条

[1] MAGNETIC AND MOSSBAUER STUDIES OF MAGNESIUM-CHROMIUM FERRITES [J].