Microstructure and magnetic properties of Cu_(0.5)Co_(0.3)Mo_(0.2)Fe_2O_4 ferrite nanoparticles synthesized by coprecipitation method

摘要

In the current research, Cu_(0.5)Co_(0.3)Mo_(0.2)Fe_2O_4 mixed ferrite nanoparticles have been synthesized using the coprecipitation method. XRD patterns show the development of polyphasic copper, cobalt and molybdenum mixed spinel composition. The particle size of ferrite system is 16 nm and they are nanoparticles. The values of lattice constant are determined to be around 8.368 Å obtained for the highest peak (311). FTIR spectroscopy shows the lower octahedral and higher tetrahedral frequency alignment of ions in the spinel ferrite corresponding to 471 cm~(-1)and 550 cm~(-1)vibration modes, respectively. TEM micrographs illustrate spherical morphology and their grain size less than 50 nm, which correlates well with XRD crystallite size. VSM shows excellent ferrimagnetic properties vividly with a high coercivity (985.29 G). The high coercivity materials can make the active components of magnetic memory devices.