Electrical conductivity of chromium substituted copper ferrites

被引：15
|
作者：
Ravinder, D [1 ]
Reddy, KS [1 ]
Mahesh, P [1 ]
Rao, TB [1 ]
Venudhar, YC [1 ]
机构：
[1] Osmania Univ, Post Grad Coll Sci, Dept Phys, Hyderabad 500004, Andhra Pradesh, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 370卷 / 1-2期
关键词：
Cu-Cr ferrites; electrical conductivity; Curie temperature; chromium;
D O I：
10.1016/j.jallcom.2003.09.126
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Electrical conductivity of copper-chromium (Cu-Cr) ferrites of various compositions have been investigated as a function of composition and temperature. Plots of log (alphaT) versus 10(3)/T are almost linear and have shown a transition near the Curie temperature. The activation energy in the ferrimagnetic region is in general less than that in the paramagnetic region. An attempt is made to explain the conduction mechanism in Cu-Cr ferrites. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：L17 / L22
页数：6
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