The LaFe_1−xZr_xO₃ (x = 0.01, 0.05) ceramics were prepared by sol-gel and annealing method and studied by XRD, Raman scattering analysis, SEM, and impedance spectroscopy method. The crystal structure and phonon characteristics analysis revealed that the crystal structure tends to preserve its ideal orthorhombic structure, following the increase in driving force of the Fe/ZrO₆ octahedral tilting. The frequency-dependent dielectric parameters at each temperature decreased with increasing Zr content. The temperature dependence dielectric relaxation and dc conduction mechanism satisfied the Arrhenius law and increased with increasing Zr content. The activation energy ranged from 0.30 to 0.50 eV and was similar in the relaxation and conduction mechanisms, indicating that both transport mechanisms were based on a similar mechanism.

中文翻译：

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Zr替代对LaFeO3的结构和电性能的影响：XRD，拉曼散射，SEM和阻抗谱研究

采用溶胶凝胶法和退火法制备了LaFe _1-x Zr _x O ₃（x = 0.01，0.05）陶瓷，并通过X射线衍射，拉曼散射分析，扫描电镜和阻抗谱法进行了研究。晶体结构和声子特性分析表明，随着Fe / ZrO ₆驱动力的增加，晶体结构倾向于保持其理想的正交结构。八面体倾斜。随着Zr含量的增加，每个温度下随频率变化的介电参数都会降低。温度依赖性介电弛豫和直流传导机理满足阿伦尼乌斯定律，并随着Zr含量的增加而增加。活化能的范围为0.30至0.50 eV，并且在弛豫和传导机制中相似，表明这两种传输机制均基于相似的机制。