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Magnetic Properties and Electrical Resistivity of Zr 4+ Substituted Li-Zn Ferrite

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Author(s): A.A. Sattar | H.M. El-Sayed, | W.R. Agami | A.A. Ghani

Journal: American Journal of Applied Sciences
ISSN 1546-9239

Volume: 4;
Issue: 2;
Start page: 89;
Date: 2007;
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Keywords: Initial permeability | magnetization | hysteresis | ferrites | Li-Zn ferrites | magnetic properties | electrical resistivity

ABSTRACT
The effect of Zr-substitution on the physical and magnetic properties ofLi0.3+0.5xZn0.4ZrxFe2.3-1.5xO4 ferrites (x=0.0, 0.01, 0.02, 0.03 and 0.05), prepared by the standard ceramicmethod, has been studied. It is found that the saturation magnetization increases up to x=0.02 and thenit decreases. On the other hand, the initial permeability increased while the Curie temperature remainedalmost constant with increasing x. The behavior of coercivity and remanence ratio was discussed. Thecomposition dependence of the dc electrical resistivity is found to support the hopping conduction mechanism.
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