• U. B. Hatwar
• K. G. Rewatkar
• V. M. Nanoti

M-type hexagonal ferrite series, SrCox ZrxFe(12−2x)O19 (x = 0.2, 0.6,1.0), has been synthesized by microwave induced sol-gel auto combustion method. The X-ray diffraction pattern at room temperature shows that the prepared samples have a single phase and the effect of composition on the unit cell parameters, density and porosity had been studied. TEM study confirmed hexagonal structure of synthesized ferrite and particle size varies from 17-55 nm. Magnetic properties have been investigated as a function of substitution of Co and Zr ions at applied field of 15KOe. The substitution causes reduction in anisotropic field. Curie temperature increases with substitution due to strongness of superexchange interaction. The change in magnetic parameters results in possible use of substituted ferrite for recording media.

microwave oven, Sol-gel auto combustion method, Anisotropy, Curie temperature.

"SYNTHESIS AND MAGNETIC PROPERTIES OF Co-Zr SUBSTITUTED STRONTIUM NANO-HEXAFERRITE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.468-473, May-2019, Available :http://www.jetir.org/papers/JETIRBV06105.pdf

"SYNTHESIS AND MAGNETIC PROPERTIES OF Co-Zr SUBSTITUTED STRONTIUM NANO-HEXAFERRITE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp468-473, May-2019, Available at : http://www.jetir.org/papers/JETIRBV06105.pdf