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Structural and Magnetic Properties of Mn0.50-xZn0.50CuxFe2O4

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DOI: 10.4236/msa.2013.412106    3,438 Downloads   4,482 Views   Citations


Mn0.50-xZn0.50CuxFe2O4 (where x = 0.0 - 0.3) ferrites have been synthesized by auto combustion method. X-ray diffraction patterns reveal that all compositions are of single phase cubic spinel structure. The lattice parameter decreases with the increase in Cu2+ content obeying the Vegard’s law. The bulk density, average grain size, initial permeability, Néel temperature and saturation magnetic induction of Mn0.50-xZn0.50CuxFe2O4 increased with increasing Cu2+content. It is observed that both density and initial permeability increase with increasing sintering temperature. The maximum initial permeability is found to be 1061 which is almost four times greater than that of the parent composition. The resonance frequency of all the samples shifts towards the lower frequency as the permeability increases with Cu2+ content. It is observed from B-H loops of Mn0.50-xZn0.50CuxFe2O4 that coercivity decreases and retentivity increases with Cu2+ content. Possible explanations for the observed magnetic properties with various Cu2+ contents are discussed.

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F. Alam, M. Khan, H. Das and A. Hossain, "Structural and Magnetic Properties of Mn0.50-xZn0.50CuxFe2O4," Materials Sciences and Applications, Vol. 4 No. 12, 2013, pp. 831-838. doi: 10.4236/msa.2013.412106.


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