Effect of BBSZ-LMZBS Co-doped NiCuZn Ferrite on Gyromagnetic, Soft and Static Magnetic Properties

In this study, BBSZ-LMZBS co-doped Ni_0.22Cu_0.31Zn_0.47Fe₂O₄-based ferrites were prepared by low temperature (880 °C) solid state reaction. The microstructure, static magnetic, soft magnetic and gyromagnetic properties of NiCuZn ferrites with different doping amounts were studied. XRD and SEM showed that the samples were successfully synthesized, and BBSZ-LMZBS promoted the low-temperature sintering of the samples through the liquid phase sintering mechanism. With the increase of the doping amount of BBSZ-LMZBS, the static magnetic property Ms of the sample reaches a maximum value of 94.42 emu/g (x=0.35), and H_c reaches a minimum value of 81.84 Oe (x=0.40). From x=0.05 to 0.40, the soft magnetic property μ′ value of the sample decreases by 40% (from 30.6 to 9.3), the ε′ value decreases from 21.8 to about 13, and the tanδ value remains small and stable. The gyromagnetic property value of the sample at 9.55GHz decreases from 872 Oe to 230 Oe, a decrease of 24%.