Structural, microstructure and impedance spectroscopy analysis of Zn2+ doped LaFeO3 nanoparticles

Physical properties are known to be drastically varied with chemical pressure and crystallite size in a multifunctional material. In this context, various concentrations of Zn (0 ≤ x ≤ 0.2) in the Fe site of LaFeO3 are prepared by wet-chemical route. The average particle size is of the order of 40-50 nm. The concentration dependent electrical behavior and the conduction mechanism at room temperature have been studied in detail by cole-cole plot of the Impedance and modulus spectra. The high frequency depressed semi circles represent the grain conduction while the intermediate frequency semi circles appear may be due to grain boundary effect.