In this paper, studies of structural as well as electrical characteristics of the double perovskite material FeTiVO₆ (iron titanium vanadate), synthesized by a high-temperature mixed oxide reaction method have been discussed. The room temperature X-ray diffraction analysis confirms the formation of a single-phase orthorhombic structure without any secondary phase. All the electrical characteristics (i.e., dielectric, impedance, conductivity and modulus) of the sample, studied at various temperatures (25–300^°C) and frequencies (1kHz–1MHz), provide many remarkable characteristics of the material. The dielectric parameters as a function of frequency explain the presence of different polarization mechanisms based on the Maxwell–Wagner double-layer model. Impedance analysis describes the grain (bulk) and grain boundary (bulk interior) effect on the material using the equivalent RQC-RC circuits. The presence of non-Debye type of relaxation behavior in the material is confirmed by the depressed semicircles of Nyquist plots. The conductivity study provides information about the CBH and OLPT type of conduction phenomenon. The temperature dependence of leakage current behavior follows the Ohmic (semiconductor) and space charge limited conduction mechanisms at a different range of applied fields. The occurrence of the room temperature hysteresis loop obtained from the PE loop tracer confirms the ferroelectric behavior of the studied compound.

中文翻译：

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FeTiVO6双钙钛矿的结构和电学特性

本文对采用高温混合氧化物反应法合成的双钙钛矿材料 FeTiVO _{6 （钒酸铁钛）的结构和电学特性进行了研究。}室温 X 射线衍射分析证实形成了没有任何第二相的单相正交结构。在各种温度 (25–300 ^° C) 和频率 (1kHz–1MHz），提供了材料的许多显着特性。作为频率函数的介电参数解释了基于麦克斯韦-瓦格纳双层模型的不同极化机制的存在。阻抗分析描述了使用等效 RQC-RC 电路对材料的晶粒（整体）和晶界（整体内部）的影响。奈奎斯特图的凹陷半圆证实了材料中存在非德拜型弛豫行为。电导率研究提供了有关 CBH 和 OLPT 类型的传导现象的信息。泄漏电流行为的温度依赖性遵循不同应用场范围内的欧姆（半导体）和空间电荷限制传导机制。