High temperature thermoelectric power studies of Cu-Cr ferrites

被引：5
|
作者：
Venkateshwarlu, C [1 ]
Ravinder, D [1 ]
机构：
[1] Osmania Univ, Dept Phys, Post Grad Coll Sci, Hyderabad 500004, Andhra Pradesh, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 397卷 / 1-2期
关键词：
thermoelectic power; Cu-Cr ferrites; Curie temperature; Seebeck coefficient; chromium;
D O I：
10.1016/j.jallcom.2004.12.044
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：
Thermoelectric power studies of Cu-Cr ferrites of various compositions were investigated from room temperature to well beyond the Curie temperature. The Seebeck coefficient is negative for all the compositions showing that these ferrites behave as n-type semiconductors. Plots of the Seebeck coefficient versus temperature show a maximum at Curie temperature. On the basis of these results, an explanation for the conduction mechanism in Cu-Cr mixed ferrites is suggested. (c) 2005 Published by Elsevier B.V.
引用
收藏
页码：5 / 8
页数：4
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