Probing the effect of LaFeO3 on the structural, electrical, and dielectric properties of Sr0.8Sn0.2Bi2Nb2O9 processed through solid state route method

SrBi2Nb2O9 belongs to the class of Aurivillius layered ferroelectric oxide materials and this article offers a suitable method for understanding the structural and electrical properties of this class material for industrial application. With this aim we have synthesized LaFeO3 (LFO) doped Sr0.8Sn0.2Bi2Nb2O9 (SBN) novel ceramic by solid state route using ball milling in an ethanol medium for 20 h with 200 rpm, followed by single -step microwave sintering. For better phase formation, the obtained powders are compressed into cylindrical pellets and fired at 1000 degrees C for 5 h. The sample was critically analyzed using powder X-ray diffraction data confirming the distorted perovskite structure. The dielectric properties were studied in a frequency range of 10 Hz to 2 MHz at different temperatures revealing many exciting results. Further analyzing the impedance spectroscopy gives an idea about the contribution of different electrically dynamic regions in different conduction processes.