Spinel ferrites with composition MnLa_yFe_2-yO₄ (y = 0.00, 0.025, 0.05, 0.075, 0.10) were manufactured via the sol–gel route and characterized under different techniques to evaluate the microwave, magnetic, structural and electrical behavior. All the samples have cubic structures as perceived from XRD data. The impedance became enlarged with an increase of rare earth ions. Hysteresis loops (M vs. H) were drawn on behalf of VSM data within the fixed range of − 2 to + 2 KOe. Remanence magnetization and saturation values were decreased with the substitution of rare earth contents. Microwave properties were measured using cavity perturbation. The real and imaginary parts of permittivity and permeability values gradually decreased with increasing frequency. The perceived consequences recommended the present system can be employed in microwave absorption applications.

成分为MnLa _y Fe _2-y O _{4 的}尖晶石铁氧体(y = 0.00, 0.025, 0.05, 0.075, 0.10) 是通过溶胶-凝胶途径制造的，并在不同的技术下进行表征，以评估微波、磁、结构和电行为。所有样品都具有从 XRD 数据看出的立方结构。阻抗随着稀土离子的增加而增大。代表 VSM 数据在 − 2 到 + 2 KOe 的固定范围内绘制了磁滞回线（M 与 H）。随着稀土含量的替代，剩磁和饱和值降低。使用腔扰动测量微波特性。介电常数和磁导率值的实部和虚部随着频率的增加而逐渐减小。推荐本系统的感知结果可用于微波吸收应用。