Electrical conductivity and microcrystalline parameter in Co-Zn ferrites

Lamani, A. R. and Jayanna, H. S. and Parameswara, P. and Somashekar, R. (2011) Electrical conductivity and microcrystalline parameter in Co-Zn ferrites. MATERIALS RESEARCH INNOVATIONS, 15 (3). pp. 185-189.

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Official URL: https://doi.org/10.1179/143307511X13018917925621

Abstract

A series of samples of the system Co(1-x)Zn(x)Fe(2)O(4) (for x=0.0, 0.2, 0.4, 0.6 and 1.0) were prepared by usual ceramic technique. These prepared samples were examined using X-ray powder pattern, which confirms the presence of a spinel structure. The authors have also carried out line profile analysis of individual Bragg reflections observed in these ferrites, which shows variation in the cell parameter. Further electrical conductivity measurements of these ferrites were carried out as a function of temperature. The observed values of the electrical conductivity have been explained on the basis of Verwey's hopping mechanism. The activation energy was found to decrease with increasing Zn content. In addition, its variations for varying concentrations of Zn in Co are interpreted in terms of microstructural parameters.

Item Type: Article
Uncontrolled Keywords: Electrical conductivity; Bragg reflections; Activation energy; Crystallite size; Strain
Subjects: C Chemical Science > Chemistry
Divisions: Department of > Chemistry
Depositing User: Users 23 not found.
Date Deposited: 08 Jul 2019 11:48
Last Modified: 27 Jul 2019 12:54
URI: http://eprints.uni-mysore.ac.in/id/eprint/2485

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