Electrical and magnetic characteristics of barium doped bismuth ferrite via sol-gel auto combustion technique

This study is devoted to the preparation of barium doped bismuth ferrites by sol-gel auto combustion method using different concentrations of barium nitrates Bi1-xBaxFeO3 (x = 0, 0.10, 0.20, 0.30). The Electrical, structural properties, and crystallite size of all samples had been studied. The electrical properties, of the samples, showed compromising results to use in electrical applications. The X-ray diffraction analysis of the samples showed the rhombohedra shape of the samples. The crystallite size were measured and noted to be 24 nm with the enhancement of Ba concentration. The electrical conductivity and resistivity are measured by the mean of two probe methods and results showed an increase in conductivity with the addition of barium. The activation energy were also calculated and recorded to be a 2.07 eV. The magnetic susceptibility of all samples was measured and the response was enhanced by the increase of the Ba concentration. SEM study revealed the morphology of the all prepared samples. The nanoparticles have average particle sizes of 15 and 75 nm, were observed by using image software. The FTIR analysis of all samples resulted the transmittance and the functional group of the all samples.