Effect of $La3+$ Substitution on Electric, Dielectric and Magnetic Properties of Cobalt Nano‐Ferrite Available to Purchase

Ultrafine particles of $CoLaxFe2−xO4$ (⁠$x = 0,$ 0.20) were prepared by using co‐precipitation method. X‐ray diffraction studies show that the samples have cubic spinel structure and average crystallite size of $x = 0$ and $x = 0.2$ are 49.84 nm and 27.73 nm respectively. Dielectric and magnetic properties have been studied by impedance analyzer and magnetic properties of the ferrite system were studied using VSM respectively. $La3+$ ions modulate significantly the electric, dielectric and magnetic properties of cobalt spinel ferrites.