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crystalline magnesium Cerium Gadolinium ferrite with general formula M g Cex Gdy Fe2-x- y O4 (where x = 0.001, 0.012, 0.016, 0.018 and y=0.002) were prepared through sol- gel route from high purity nitrates of M agnesium (M g), Cerium(Ce), Gadolinium(Gd) and Iron. The samples were sintered in microwave furnace and then characterized by XRD, EDAX, FTIR and SEM techniques. X-ray diffraction measurements confirmed the Nano size and formation of single phase cubic spinel structure of magnesium ferrite. It was found that the lattice constant decreases with the increase in Gd 3+ Ce 3+ concentration and the crystalline size of the samples was lying in the range of 53.24 - 53.78 nm, which was confirmed from the SEM monographs. SEM studies show that the grain size of the samples decreases with the increase in Gd 3+ Ce 3+ content. The FTIR spectra shows two strong absorption bands within the frequency range of 362.59-570.89 cm −1 . This concludes that Gd 3+ , Ce 3+ occupies B-site. Saturation magnetization of Gd 3+ Ce 3+ substituted M g ferrites is higher than unsubstituted ferrite. The VSM studies confirm the magnetic behaviour and used to understand the electromagnetic properties of these nano materials. The permittivity studies show the decrease in relative permittivity of the material.

Study of Electrical and Magnetic Properties in Nano sized CeGd Doped Magnesium Ferrite