The composite of BaFe₁₂O₁₉ (BHF) and CoFe_1·75Zn_0·25O₄ (CZF) with different weight percentages have been synthesized by using the high energy planetary ball mill technique. The obtained powders have been characterized by employing the X-ray diffraction, Field Emission Scanning Electron Microscope, and Energy Dispersive X-ray analysis techniques. The lattice parameters and phase percentage have been obtained by the Rietveld refinement analysis of XRD peaks. The crystallite sizes of BHF are greater than the CZF. The magnetic hysteresis loops have been recorded by using the Vibrating Sample Magnetometer (VSM) for all samples. The magnetic interaction between BHF and CZF in the composite has been investigated by plotting the loop width (ΔH) versus magnetization (M). The shape of these curves between loop width versus magnetization is changed with a different weight percentage of BHF and CZF. The saturation magnetization increases with an increase in the concentration of CZF in the composites. Vegard's law is used for comparing the theoretical and experimental magnetic parameters. The squeezing in hysteresis loop at H = 0 vanishes for (55)% BHF + (45)%CZF sample below 150 K and interesting magnetic interaction between two phases has been observed.

BaFe ₁₂ O ₁₉（BHF）和CoFe _1·75 Zn _0·25 O ₄的复合物通过使用高能行星式球磨机技术已合成了具有不同重量百分比的CZF（CZF）。通过使用X射线衍射，场发射扫描电子显微镜和能量色散X射线分析技术来表征获得的粉末。通过XRD峰的Rietveld精细分析获得了晶格参数和相百分比。BHF的微晶尺寸大于CZF。使用所有样品的振动样品磁强计（VSM）记录了磁滞回线。通过绘制环路宽度（ΔH）对磁化强度（M）的曲线，研究了复合材料中BHF和CZF之间的磁性相互作用。环路宽度与磁化强度之间的这些曲线的形状随BHF和CZF的不同重量百分比而变化。饱和磁化强度随着复合材料中CZF浓度的增加而增加。维格德定律用于比较理论和实验磁参数。 低于150 K的（55）％BHF +（45）％CZF样品在H = 0时的磁滞回线消失了，并且观察到两相之间有趣的磁相互作用。