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American Journal of Applied Sciences
Year: 2007  |  Volume: 4  |  Issue: 2  |  Page No.: 89 - 93

Magnetic Properties and Electrical Resistivity of Zr4+ Substituted Li-Zn Ferrite

A.A. Sattar, H.M. El-Sayed, W.R. Agami and A.A. Ghani    

Abstract: The effect of Zr-substitution on the physical and magnetic properties of Li0.3+0.5xZn0.4ZrxFe2.3-1.5xO4 ferrites (x=0.0, 0.01, 0.02, 0.03 and 0.05), prepared by the standard ceramic method, has been studied. It is found that the saturation magnetization increases up to x=0.02 and then it decreases. On the other hand, the initial permeability increased while the Curie temperature remained almost constant with increasing x. The behavior of coercivity and remanence ratio was discussed. The composition dependence of the dc electrical resistivity is found to support the hopping conduction mechanism.

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