Pure and cobalt-doped zinc nanoferrites (Zn_1−xCo_xFe₂O₄, x = 0.00, 0.03, 0.06, 0.09) have been successfully prepared by cost-effective co-precipitation method. The formation of single spinel ferrites, purity, structure, and cation distribution of the material was determined by the X-ray diffraction method at room temperature. The phase formation, elemental composition and surface morphology were confirmed from the FTIR spectroscopy and SEM. The significant difference between the theoretical and experimental values of magnetic moments recommends that the magnetic order of the existing system is Yafet–Kittle (Y–K) type magnetic order. The complex impedance spectroscopy was performed in the range of frequency from 100 Hz to 2 MHz at various temperature ranges from 300 to 570 K with the step of 30 K. The experimental data are fitted to equivalent circuits to obtain grain and grain boundaries capacitance and resistance. The alternating current (a.c) and direct current (d.c) conductivities are estimated from measured data of the dielectric parameters. The application of plots of Jonscher’s power law showed the correlation barrier hopping (CBH) process can explain the conduction phenomenon in Zn_1−xCo_xFe₂O₄ nanoferrites system.

纯的和钴掺杂的锌纳米铁氧体 (Zn _{1− x} Co _x Fe ₂ O ₄ , x = 0.00, 0.03, 0.06, 0.09) 已通过具有成本效益的共沉淀方法成功制备。单尖晶石铁氧体的形成、纯度、结构和材料的阳离子分布在室温下通过X射线衍射法测定。从 FTIR 光谱和 SEM 证实了相形成、元素组成和表面形态。磁矩的理论值和实验值之间的显着差异表明现有系统的磁序是 Yafet-Kittle (Y-K) 型磁序。复阻抗谱在 100 Hz 至 2 MHz 的频率范围内在 300 至 570 K 的不同温度范围内以 30 K 的步长进行。将实验数据拟合到等效电路中以获得晶界和晶界电容和电阻。交流电 (ac) 和直流电 (dc) 电导率是根据介电参数的测量数据估算的。Jonscher 幂律曲线的应用表明相关势垒跳跃 (CBH) 过程可以解释 Zn 中的传导现象_{1− x} Co _x Fe ₂ O ₄纳米铁氧体系统。