The Manganese –Zinc Ferrite nanoparticles (Mna Zn (1-a) Fe2O4 ; a= 0,0.5,1.0) of controlled size were synthesized using chemical precipitation method and characterization for its structural and magnetic properties and compared the particle size in the range of nanometer. Manganese –Zinc Ferrite are of interest on account of their potential uses in many technological fields. The structural, optical and magnetic properties of the prepared samples are characterized by X-ray diffraction (XRD) ,Scanning Electron Microscope (SEM), UV-Visible spectrometer, Fourier Transform infrared spectrometer(FT-IR). XRD pattern indicates the formation of polycrystals with cubic structure. The average crystalline size has been found to increasing with increase in Mn, Zn concentration. UV-Vis absorbance spectra of the synthesized nanoparticles show an increase in the band gap which indicates the decreases in the size of the Manganese- Zinc Ferrite nanocrystalline materials. FTIR measurements show the presence of O-H stretching vibrations along with C=O, C-H, C-O in various regions. SEM micrograph shows the structure and morophology of Manganese –Zinc ferrite nanoparticles.
