nanoparticles were successfully synthesized by coprecipitation. The samples were calcined at 900 oC for 3 h and X-ray diffraction analysis showed that had a single phase cubic spinel structure, while formation of secondary phase of Fe2O3 was observed in XRD patterns of CuFe2O4, MgFe2O4. The saturation magnetization (Ms) of is in between the saturation magnetization values of CuFe2O4 and MgFe2O4 nanoparticles, CuFe2O4 is a ferromagnetic material, while MgFe2O4 and show superparamagnetic behavior. |
