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| Article Name : | | | EFFECT OF MN DOPING LEVEL ON MAGNETIC PROPERTIES OF Ni SUBSTITUTED COBALT FERRITE | | Author Name : | | | M.M. SUTAR , J. S. GHODAKE , S. R. KOKARE AND P.B. JOSHI | | Publisher : | | | Ashok Yakkaldevi | | Article Series No. : | | | GRT-2165 | | Article URL : | |  | Author Profile View PDF In browser | | Abstract : | | | It has been observed that for cobalt ferrite the coefficient of magnetostriction is maximum but the observed value of magnetoelectric coefficient is low as compared to the value calculated on the basis of known piezo-electric coefficient(d) and magnetostrictive strain(ë). It was predicted that a large value of magneto crystalline anisotropy of cobalt ferrite reduces the effective magneto electric coupling. To improve the magneto electric coupling still maintaining the values of resistivity (p), Saturation magnetization (Ms) and initial permeability (ì) high, substitution of Nickel is found to be useful. Further substitution of Mn at A or B-site is reported to improve , and reduce anisotropy energy k1, coeresive field (Hc) and curie temperature (Tc) of the material. Therefore it was interesting to determine Magnetic properties of submicron level Ni and Mn substituted Cobalt Ferrite. | | Keywords : | | - Mn substituted cobalt ferrite.,
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