Impedance spectroscopic studies on Pb0.6Ba0.2Sr0.2TiO3 ceramic

Abstract Ferroelectrics have been most popular candidates for electro-dielectric applications. Present studies report AC impedance spectroscopic investigations on a typical Pb0.6Ba0.2Sr0.2TiO3 ferroelectric sample. Phase formation was confirmed using X ray diffractometry which showed tetragonal structure with no other impurities. The electro-dielectric behaviour of the system was explored as a function of frequency and temperature. Arrhenius plots were drawn to determine activation energy. Equivalent circuit for the sample was developed to reveal the electrical peculiarities of the samples. Plots of variation of AC conductivity were fitted using Jonscher’s power law. The ferroelectric to paraelectric phase transition was observed at a temperature of 573 K.