Magnetic properties comparison of Co 0.5 Zn 0.5 Fe 2 O 4 nanoparticles prepared by different methods

Co0.5Zn0.5Fe2O4 ferrite nanoparticles with diameters less than 11 nm were prepared by three different methods of microwave, co-precipitation and Low Temperature Solid State Reaction (LTSSR). Magnetic and structure properties of the products were investigated by X-Ray Diffraction (XRD), Alternating Gradient-Force Magnetometer (AGFM) and Transmission Electron Microscopy (TEM). Magnetic properties of samples depended on the synthesis method. The X-ray analysis shows the samples have spinel phase. The Curie temperatures of the samples were measured and they were lower than the bulk ones. In addition, all of Co0.5Zn0.5Fe2O4 samples exhibit a small hysteresis loop at room temperature.