AC conductivity, density related and magnetic properties of Ni 1 − xZn xFe 2O 4 ferrites with the variation of zinc concentration

Abstract

AC conductivity, density related and magnetic properties are reported for Ni 1 − x Zn x Fe 2O 4 ferrites with the variation of zinc concentration prepared by the standard solid state reaction technique. X-ray powder diffraction patterns confirmed the spinel structure of the prepared compounds. AC conductivity (ln σ ac) increases from − 10.045 (S/m) to − 3.781 (S/m) with the increase in zinc concentration from 0.0 to 1.0 at the frequency of 1 kHz. Lattice parameters, sintered density and grain size increase whereas X-ray density and porosity decrease with the increase in zinc concentration. Saturation magnetization increases with the increase in zinc concentration up to x = 0.4 and after that it decreases with the increase in zinc concentration. Remanence magnetization and magnetic moment almost have the similar trend as that of saturation magnetization. Yafet–Kittel angles increase with the increase in zinc concentration. The possible reasons responsible for these changes are undertaken.