Ba(Zn1/3Nb2/3)O3/Ni0.8Zn0.2Fe2O4 magneto-dielectric composite with large dielectric constant and high permeability

Ba(Zn1/3Nb2/3)O-3/Ni0.8Zn0.2Fe2O4 (BZN/NZO) composites were synthesized via the conventional solid-state reaction method. The phase composition and surface morphology of the composites were investigated using XRD and SEM, respectively. The dielectric and magnetic properties of the composites were studied. The results show that the BZN/NZO composites have large dielectric constants and very high permeabilities. For the 20%BZN/80%NZO composite, the dielectric constant and permeability in low frequency range are about 8,000 and 18, respectively. The large dielectric behavior of the BZN/NZO composites is mainly attributed to the Maxwell-Wagner polarization.