Abstract Bulk samples of Co1-xMnxFe2O4 (x = 0, 0.05 and 0.10) were synthesized in single phase form by using sol-gel technique. All samples undergo ferrimagnetic transition which decrease from 778 K to 766 K with increase in Mn substitution. The initial magnetization data measured at room temperature were interpreted using the Law of Approach to Saturation. The magnetocrystalline anisotropy constant and saturation magnetization showed increase in value for 5 at.% of Mn concentration.The variation of coercive field was interpreted in terms of microstructural parameter. The complex impedance spectroscopic data showed the charge carrier relaxes over the grains and grain boundaries with relaxation energy of the order of 10−1 eV. Equivalent circuits corresponding to the Nyquist plots were obtained from Zsimpwin software. The ac conductivity was studied by using Jonscher Power Law and it was established that small polaron model governs the mechanism of electrical conductivity.

中文翻译：

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阳离子分布和温度变化对锰取代钴铁氧体磁性和介电性能的影响

摘要 使用溶胶-凝胶技术以单相形式合成了 Co1-xMnxFe2O4 (x = 0、0.05 和 0.10) 块状样品。所有样品都经历亚铁磁转变，随着 Mn 取代度的增加，该转变从 778 K 降低到 766 K。在室温下测量的初始磁化数据使用饱和逼近定律进行解释。磁晶各向异性常数和饱和磁化强度在 Mn 浓度为 5 at.% 时增加。矫顽场的变化是根据微观结构参数来解释的。复阻抗光谱数据显示电荷载流子在晶粒和晶界上弛豫，弛豫能量约为 10-1 eV。对应于奈奎斯特图的等效电路从 Zsimpwin 软件中获得。