Abstract: Nano sized ferrites show a significant change in physical, electrical, and magnetic properties in contrast to their bulk counterparts due to their high surface to volume ratio of the grains. Ferrite nanomaterials have been prepared by coprecipitation method. X-ray diffraction analysis confirms the single-phase cubic close-packed lattice formation of synthesized materials. Vibrating Sample magnetometer is used to get the information regarding magnetic properties. The synthesized nanomaterials possess high saturation magnetization and moderate coercive field and may have a potential for different magnetic applications. Impedance spectroscopy is used for getting information about metallic and semiconducting behaviour. Electrical conduction in ferrite nanomaterials is due to electronic hopping between ion pairs of the same type of element on equivalent sub lattice sites but having different valence state. Variation in resistivity with dopant concentration is explained based on occupancy of cations in the sub-lattices of the spinel structure. Dielectric behavior of the spinel ferrites is explained by considering interfacial polarization due to surface effect. This work is an attempt to meet the challenges for the advancements in the new ferrite technology.
Keywords:- Nano Ferrires, X-ray diffraction, Coprecipitation, Impedance Spectroscopy Vibrating Sample magnetometer.
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