Influence of Zn+2 Doping on Dielectric Properties of Ba-Based Nanoferrites

Abstract

The effect of frequency, temperature, and composition on the dielectric behavior for the composition of BaNi2-xZnxFe16 O27 ferrite samples were studied (with x = 0, 0.4, and 1.6) prepared using the usual ceramic method. The experimental results indicated that the dielectric constant  and dielectric loss “decrease as the frequency increases, and increases with increasing temperature. The experimental results indicated that the dielectric constant and dielectric loss  decreases. The dielectric constant has high values and shows relaxation processes at relatively higher temperatures. The dielectric abnormal behavior of the dielectric constant was observed to shift to lower values as the temperature increases. The dielectric loss tangent initially decreases rapidly with increasing frequency, and increasing tan δ with increasing temperature is attributed to thermal activation of electron transport, responsible for dielectric behavior. The , and tanσ were composition-dependent, both decreasing as Zn ion substitution increases.