Reporting the magnetic profile of cobalt ferrite nanoparticles at different temperatures

Cobalt ferrite nanoparticles (CFNs) were synthesized using cobalt nitrate hexahydrate and ferric nitrate nonahydrate through a wet chemical method. Various characterization techniques were used to confirm the synthesis of CFNs. The thermal stability, structure, morphology and crystallinity of the synthesized CFNs were determined by thermogravimetric analysis, field emission scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. The results show that the synthesized nanoparticles are stable and crystalline with fine homogenized structure. Vibrating sample magnetometry was used to determine the magnetic properties of the synthesized material. The coercivity was noted to be decreased and the hysteresis loop gradually flattens as the temperature increases toward the Curie temperature.