Polycrystalline samples AlFe[Formula: see text]Cr[Formula: see text]O3 synthetized by a solid state and a co-precipitation (cop) method show an orthorhombic system in space group Pc21n. It was found that the cation distribution and magnetic ordering depend toughly on the preparation conductions. The dielectric and conductivity properties of samples were studied as function of frequency and temperature. We deployed impedance spectroscopy in studying the dielectric behavior of AlFe[Formula: see text]Cr[Formula: see text]O3. The significant results of this work are as follows: For both samples, permittivity and dielectric loss are very sensitive to temperature and frequency variation. The presence of additional effects and conducting species in AFCr5 ceramics leads to high dielectric permittivity. The activation energy values point towards the small range motion of oxygen at low-temperature and long range motion at high-temperature. The dielectric response, in case of AFCr5-s, was assigned to both grain and grain boundaries. However, additional entity pores also contribute to dielectric belongings of AFCr5-cop.

中文翻译：

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共沉淀固相法制备Cr掺杂无铅多铁性AlFeO3的结构、磁学和电学表征

多晶样品 AlFe[分子式：见正文]Cr[分子式：见正文]O3采用固态和共沉淀（cop）法合成，在空间群Pc21n中显示出正交晶系。发现阳离子分布和磁性排序强烈依赖于制备传导。作为频率和温度的函数，研究了样品的介电和电导率特性。我们部署阻抗谱研究AlFe[公式：见正文]Cr[公式：见正文]O的介电行为3. 这项工作的重要结果如下： 对于这两种样品，介电常数和介电损耗对温度和频率变化非常敏感。AFCr5 陶瓷中存在的附加效应和导电物质导致高介电常数。活化能值指向氧气在低温下的小范围运动和高温下的远距离运动。在 AFCr5-s 的情况下，介电响应被分配给晶粒和晶界。然而，额外的实体孔隙也有助于 AFCr5-cop 的电介质属性。