Characterization of (Mg, La) Substituted Ni-Zn Spinel Ferrite

Spinel structure of (Mg, La) substituted spinel Ni-Zn ferrite has been synthesized by sol–gel auto combustion method. The ferrite exhibits a single-spinel structure. The ferrite is studied as a microwave absorbing material. The microwave measurements are carried out by a vector network analyzer. The reflection loss of the ferrite is calculated as a single-layer absorber. The results indicate that the ferrite annealed at 850°C has great potential for application in electromagnetic wave attenuation.