Ternary monodispersed Mn0.5Zn0.5Fe2O4 ferrite nanoparticles : preparation and magnetic characterization

摘要: A ternary system of Mn0.5Zn0.5Fe2O4 has been synthesized for the first time using thermal decomposition metal acetylacetonate in presence a high temperature boiling point solvent and fatty acids. Unlike results synthesis this material by other techniques, we obtain nearly monodispersed nanoparticles, rendering them ideal applications like hyperthermia. The crystal structure morphology particles obtained x-ray diffraction (XRD) transmission electron microscopy (TEM) are those single phase spinel with no impurity phases. 7 nm average diameter, very narrow (<10%) size distribution. oleic acid surfactant on shows 28% weight loss thermo-gravimetric analyses (TGAs), which corresponds to monolayer thickness coating. Magnetic measurements show be superparamagnetic characteristic blocking around 50 K.