In the present paper, structural, microstructural, dielectric, electrical, and magnetic characteristics of a chemically synthesized double perovskite compound BiMgFeCeO₆ have been reported. An analysis of room temperature X-ray diffraction data has shown formation of compound with orthorhombic symmetry. Study of micrographs of the pellets has shown the homogeneous distribution of grains, grain boundaries, and presence of required elements in the sample. Detailed studies of dielectric (ε_r, tan δ) and impedance parameters of the material have provided an insight into the electrical properties and understanding of types of relaxation process occurred in the material. The semiconductor characteristic (i.e., negative temperature coefficient of resistance behavior) of the compound at high temperature has been observed in the temperature-dependent dc conductivity study. As the characteristics of the frequency dependence of ac conductivity of the material follow Jonscher’s universal power law, the validity of analysis and good quality of the sample are confirmed. The occurrence of ferroelectric polarization (hysteresis loop), magnetization loop, and magnetoelectric pattern in the material confirms the multiferroicity in it.

在本论文中，已经报道了化学合成的双钙钛矿化合物BiMgFeCeO _6的结构，微结构，介电，电和磁特性。室温X射线衍射数据的分析表明形成具有正交斜对称性的化合物。对颗粒的显微照片的研究显示出样品中晶粒的均匀分布，晶界和所需元素的存在。介电常数（_εr（tanδ）和材料的阻抗参数提供了对电特性的了解，并了解了材料中发生的弛豫过程的类型。在与温度相关的直流电导率研究中，已观察到该化合物在高温下的半导体特性（即，电阻行为的负温度系数）。由于材料的交流电导率的频率依赖性特征遵循Jonscher的通用幂定律，因此可以确认分析的有效性和样品的良好质量。材料中铁电极化（磁滞回线），磁化回线和磁电图样的出现证实了其中的多铁性。