Abstract
Zinc doped manganese ferrite nanoparticles having chemical formula Mn1−xZnxFe2O4 (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) were synthesized by co-precipitation method. The structural characterization of the prepared nanoparticles was done by X-ray diffraction and fourier transform infrared spectroscopy. It gave a confirmation of spinel phase formation. Electrical properties such as dielectric constant, dielectric loss tangent, dc-resistivity were studied. Substitution of zinc in manganese ferrite highly enhanced dielectric constant and at the same time it reduces the dielectric loss tangent. The magnetic characterization was carried out using a vibrating sample magnetometer and the parameters such as saturation magnetization, coercivity and retentivity of the synthesized samples were found out. It showed strong dependence on the zinc concentration. The observed behaviour of the structural, electrical and magnetic properties with varying zinc concentration was discussed.
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