Double perovskites are currently being intensively studied thanks to their highly relevant technological potential as materials with manifold properties. This contribution aims to the preparation of double perovskite oxide material BiBaFeZnO₆, which is synthesized by the sol–gel method. The structural study shows that the sample is single phase and crystallizes in the rhombohedral system with the R\(\stackrel{-}{3}\)C space group. In addition, impedance spectroscopy was used to study the dielectric behavior of materials and the different physical phenomena at temperature range from 200 to 380 K and in a frequency range up to 1 MHz. The Nyquist diagram at different temperatures reveals the behavior of flat semi-circular, which has been modeled by an equivalent circuit including an RC element and an RQ element. The frequency-dependent behavior of Z” shows a peak inferring a relaxation. The electrical conductivity was determined by the Jonscher’s law, and the activation energy were calculated from modulus or DC conductivity. The obtained results have confirmed that the non-overlapping small polaron tunneling model (NSPT) is the appropriate model to explain the electrical conduction phenomenon.

由于双钙钛矿作为具有多种特性的材料具有高度相关的技术潜力，目前正在对其进行深入研究。该贡献旨在制备双钙钛矿氧化物材料 BiBaFeZnO ₆，该材料通过溶胶-凝胶法合成。结构研究表明，样品为单相，在菱面体体系中结晶，R \(\stackrel{-}{3}\)C空间群。此外，阻抗谱用于研究材料的介电行为以及在 200 到 380 K 的温度范围和高达 1 MHz 的频率范围内的不同物理现象。不同温度下的奈奎斯特图揭示了扁平半圆形的行为，该行为已通过包含 RC 元件和 RQ 元件的等效电路建模。Z”的频率相关行为显示了一个峰值，推断出松弛。电导率由 Jonscher 定律确定，活化能由模量或 DC 电导率计算。所得结果证实非重叠小极化子隧穿模型（NSPT）是解释导电现象的合适模型。