Study of Effect of Nd Substitution on Dielectric and Electrical Properties of Bismuth Iron Titanate

In this communication, Nd-doped bismuth iron titanate [(Bi0.9Nd0.1)(Fe0.5Ti0.5)O3] material was synthesized with the traditional solid-state reaction method. Structural analysis and phase identification were done with X-ray diffraction. Morphological analysis was carried out by field emission scanning electron microscope (FE-SEM). FE-SEM image shows that the grains are uniformly distributed over the surface. Also, the polycrystalline nature of the sample is confirmed by FE-SEM analysis. EDX study shows the presence of all essential elements with appropriate purity. Dielectric and impedance analyses were done in a wide range of frequencies and temperatures. NTCR behaviour of the sample was confirmed by impedance analysis. The electrical and dielectric properties have been substantially enhanced, and the synthesized material’s frequency-dependent AC conductivity plot agrees with Jonscher’s universal power law. Based on the dielectric and electrical features of [(Bi0.9Nd0.1)(Fe0.5Ti0.5)O3], the synthesized material could be useful for electronic device applications.