Electrical behaviour of fine particle, co-precipitation prepared Ni-Zn ferrites

被引:48
作者
Islam, MU [1 ]
Abbas, T
Niazi, SB
Ahmad, Z
Sabeen, S
Chaudhry, MA
机构
[1] Bahuddin Zakariya Univ, Dept Phys, Multan, Pakistan
[2] Bahuddin Zakariya Univ, Dept Chem, Multan, Pakistan
关键词
ferrites; fine particles; co-precipitation; electrical resistivity; thermo-power;
D O I
10.1016/j.ssc.2004.02.019
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Co-precipitation technique using chlorides of constituents was used to prepare fine particles Ni-Zn ferrites. The particle size was estimated from X-ray diffraction data using Sherrer's formula. The dc electrical resistivity and thermo-power was measured in the temperature range 300-450 K and it was found that all the samples are degenerate type semi-conductors. The results of dc resistivity and thermo-electric power confirm that the conduction mechanism in these ferrites is due to small polaron hopping. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:353 / 356
页数:4
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