In the current study, we explored the influence of structural, morphological, and magnetic properties of diamagnetic aluminum (Al³⁺) ions substituted nickel-zinc-cobalt (Ni-Zn-Co) spinel ferrites synthesized by the conventional ceramic technique. Single-phase cubic spinel structures with the Fd3m space group of Ni_0.4Zn_0.35Co_0.25Fe_(2‐x)Al_xO₄ (0 ≤ x ≤ 0.12) ferrites were confirmed by the Rietveld refinement of X-ray diffraction (XRD) data. The lattice constants showed a decreasing trend with Al contents. Field Emission Scanning Electron Microscopy (FE-SEM) was used to observe the surface morphology. The average grain size estimated from the FE-SEM microstructures was found to be 0.55–0.38 µm for the studied samples. Fourier transform infrared (FT-IR) spectra identified two prominent absorption bands from 579.82–584.39 cm^‐1 and 399.82–405.03 cm^‐1 corresponding to the tetrahedral and octahedral voids, respectively. The modes' peak positions were both red-shifted and blue-shifted, as demonstrated in the Raman spectra. Cations distributions were identified by the Mossbauer spectra and from the Rietveld refinement. The concentrations of iron (Fe³⁺) ions in the sub-lattices were determined using Mossbauer spectra analysis. The maximum saturation magnetization (M_s) was found to be 93.06 emu/g for the sample with x = 0.12. Overall, the obtained results indicate the applicability of the ferrite for high-frequency electronic devices.

在当前的研究中，我们探索了通过常规陶瓷技术合成的抗磁性铝（Al ³⁺）离子取代的镍锌钴（Ni-Zn-Co）尖晶石铁氧体的结构，形态和磁性能的影响。Ni _0.4 Zn _0.35 Co _0.25 Fe _（2-x） Al _x O ₄的Fd3m空间群的单相立方尖晶石结构X射线衍射（XRD）数据的Rietveld精炼证实了（0≤x≤0.12）铁氧体。随着Al含量的增加，晶格常数呈下降趋势。场发射扫描电子显微镜（FE-SEM）用于观察表面形态。根据FE-SEM显微组织估计的平均晶粒尺寸为0.55-0.38 µm。傅立叶变换红外（FT-IR）光谱确定了579.82–584.39 cm ^-1和399.82–405.03 cm ^-1的两个突出的吸收带分别对应于四面体和八面体空隙。如拉曼光谱所示，这些模式的峰位置同时发生了红移和蓝移。阳离子分布通过Mossbauer光谱和Rietveld精炼方法确定。使用Mossbauer光谱分析确定亚晶格中铁（Fe ³⁺）离子的浓度。对于x ＝ 0.12的样品，发现最大饱和磁化强度（M _s）为93.06emu / g。总体而言，获得的结果表明铁氧体在高频电子设备中的适用性。