Abstract
This work discusses the synthesis, characterization, and electrical properties of Gd2NiTiO6 (GNTO) double perovskite synthesized using the sol-gel citrate auto-ignition method. The structure, microstructure, and compositional distribution of the sample were analyzed by X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), and Energy Dispersive X-ray (EDX) analysis. Rietveld's refinement of the XRD pattern corroborated the single-phase monoclinic structure with space group P21/n. The impedance spectra demonstrated grain and grain boundary contributions to the total conductivity and the non-Debye type relaxation. The electrical study also established the semiconductive character of the material. The investigation showed that the conduction mechanism was thermally activated. The frequency-dependent complex dielectric spectra have been investigated using the Havriliak-Nigami (HN) formalism. The temperature variation of leakage-current density was found from J-E characteristics curves.
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