Multiferroic nanocomposites with the chemical formula, (x).Bi_0.95Mn_0.05FeO₃-(1-x). Ni_0.5Zn_0.5Fe₂O₄, (where x = 0.2, 0.4, 0.5, 0.6, and 0.8) have been synthesized using sol–gel autocombustion and conventional solid-state reaction methods. Resistivity and impedance measurements were taken in order to understand the properties of the conductivity of the samples. Multiple hopping mechanisms were evident from the studies of impedance analysis with the traces of different trends from Nyquist plots. Magnetoelectric (ME) coupling coefficient (α_ME) studies were taken in order to understand the possible coupling in the synthesized composites. The composites exhibit different values for α_ME, and it was observed to be varying systematically in accordance with the mixing ratios of the individual constituent phases. Interestingly, the composite with equal ratio (x = 0.5) of both the individual phases shows enhanced value for α_ME along longitudinal and transverse modes. The observed typical values of α_ME along the longitudinal and transverse modes are 28.083 mV/cm. Oe and 27.098 mV/cm. Oe, respectively. The possible reasons for the improvement in the coupling factor are well discussed and are attributed to the charge balance along with the structural inhomogeneities prevailed during the formation of the composite. In addition, the observed difference in magnitudes of α_ME along the longitudinal and transverse modes are also examined and presented in this paper. Improved structural, resistive, impedance and magnetoelectric coupling studies suggest that these composites are well suitable for the applications of spintronic-based devices.

化学式为（x）.Bi _0.95 Mn _0.05 FeO _3-（1- x）的多铁纳米复合材料。Ni _0.5 Zn _0.5 Fe ₂ O ₄（其中x  = 0.2、0.4、0.5、0.6和0.8）已使用溶胶-凝胶自燃和常规固态反应方法合成。进行电阻率和阻抗测量以了解样品的电导率特性。从阻抗分析的研究中可以明显看出多种跳变机制，其中包括来自奈奎斯特图的不同趋势的痕迹。磁电（ME）耦合系数（α _ME进行了研究，以了解合成复合物中可能的偶联。该复合材料表现出不同的值α _ME，并且观察到可根据各个构成相的混合比系统地改变。有趣的是，复合材料等比例（X 的用于增强的值的各个相同时显示了= 0.5）α _ME沿纵向和横向模式。所观察到的典型值α _ME沿纵向和横向模式为28.083 mV / cm。Oe和27.098 mV / cm。大江分别。改善了耦合因子的可能原因已被充分讨论，并且归因于电荷平衡以及复合物形成过程中普遍存在的结构不均匀性。此外，在的幅度所观察到的差α _ME沿纵向和横向模式还审查并在本文提出。改进的结构，电阻，阻抗和磁电耦合研究表明，这些复合材料非常适合基于自旋电子器件的应用。