Investigation of structural and magnetic properties of Zr-Co doped nickel ferrite nanomaterials

Zr-Co doped nickel nano-ferrites were prepared via micro-emulsion method. The crystallite size calculated by scherrer's formula lie in the range 10-15 nm. The saturation magnetization decreases from 47 to 13 emu/g up to x=0.8 with ups and downs fluctuations. The high values of coercivity and moderate saturation magnetization in some samples suggested their potential use in high density perpendicular recording media.114