Structure, magnetic and electrical transport properties of the perovskites Sm1-xCaxFe1-xMnxO3

被引：18
|
作者：
Huo, Guoyan [1 ]
Song, Dayong [1 ]
Yang, Qing [1 ]
Dong, Fuying [1 ]
机构：
[1] Hebei Univ, Sch Chem & Environm Sci, Baoding 071002, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2008年 / 34卷 / 03期
关键词：
magnetic properties; structure; electrical transport behavior; serial compounds;
D O I：
10.1016/j.ceramint.2006.11.010
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The structure of series Sm1-xCaxFe1-xMnxO3 (0.0 <= x <= 1.0) compounds was investigated. The lattice parameters increase with coupled substitution Sm3+ by Ca2+ and Mn4+ for Fe3+. The variation of parameter, c, is larger than that of a and b, respectivly. The detailed analysis of magnetic properties of series Sm1-xCaxFe1-xMnxO3 (0-1 <= x <= 0.9) shows that local magnetic interaction between Fe3+ and Fe3+ and Mn4+ and Mn4+ at below magnetic transition temperature is antiferromagnetic. Above magnetic transition temperature the presence of large magnetic cluster is proposed and the sizes of magnetic clusters decrease with Mn4+. The electrical transport behaviors related with small polaron hopping and variable range hopping models. (C) 2007 Published by Elsevier Ltd and Techna Group S.r.l.
引用
收藏
页码：497 / 503
页数：7
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