Abstract
Cu doped NiCuZn ferrite Ni0.4-xCuxZn0.6Fe2O4 (x=0.16~0.28) have been prepared by the solid-molten salt method using NaCl as flux. The structure and properties were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and vibrating sample magnetometer (VSM) techniques. It is found that addition of Cu2+ results in the particles size growing up because of the tend of crystal structure to be a normal Zn ferrite.The Ms values of NCZF are decrease gradually with increasing of Cu content. Curie temperature (Tc) increases with Cu2+ content in the range of x<0.20, and then decreasing rapidly. This can be ascribed to that the lower magnetization moment Cu2+ ion amount of B-site increasing leads to weaker super-exchange effect.
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