In this study, NiFe₂O₄ (1:1, 1:2, 1:3, 2:1, and 3:1) nanoparticles were synthesized via sol-gel method and thermally treated at 900 °C. The reflection planes with single and two phases by homogeneous and nonhomogeneous distributions of Ni²⁺ and Fe³⁺ ions in cubic spinel nickel ferrite samples confirmed by using XRD patterns through the Rietveld refinement method and FTIR analysis. The changes in structural parameters correlated with the morphology and elements obtained from FESEM and EDS analysis. UV-vis diffuse reflectance spectra images indicate that the band gap ranges from 1.87 to 1.57 eV by varying the ratios of precursors. The homogeneity of Ni²⁺ and Fe³⁺ ions between the octahedral and tetrahedral sites plays a desired role in the magnetic and impedance responses. Maximum saturation magnetization of 66.26 emu/g with pure ferromagnetic behavior and high impedance response of 1.15 × 10⁵ Ω were obtained, and then the value decreased due to the nonhomogeneous distribution.

在这项研究中，NiFe ₂ O ₄（1：1、1：2、1：3、2：1和3：1）纳米粒子通过溶胶-凝胶法合成，并在900°C下进行了热处理。通过Rietveld精炼方法和FTIR分析，通过XRD图案确定了立方尖晶石镍铁氧体样品中Ni ²⁺和Fe ³⁺离子的均匀和不均匀分布的单相和两相反射面。结构参数的变化与通过FESEM和EDS分析获得的形态和元素相关。紫外可见漫反射光谱图像表明，通过改变前体的比例，带隙范围为1.87至​​1.57 eV。Ni ²⁺和Fe ³⁺的均质性八面体和四面体位点之间的离子在磁响应和阻抗响应中起着期望的作用。的66.26鸸鹋/ g的最大饱和磁化强度与纯铁磁行为和1.15×10高阻抗响应⁵ 获得Ω，然后将该值与非均匀分布降低所致。