Investigation and Comparison of Structural, Morphological, Magnetic and Optical Properties of Cobalt Ferrite Thin layer and Nanoparticles

In this article, the structural, magnetic, morphological and optical properties of Cobalt ferrite nanoparticles are investigated and compared with Cobalt ferrite thin film. Cobalt ferrite nanoparticles were prepared by auto-combustion Sol-gel method and Cobalt ferrite thin film was prepared by Sol-gel and Spin-coating methods. Structural properties of the samples were investigated using X-ray diffraction spectroscopy and followed by Rietveld and Williamson-Hall analysis. The magnetic properties of the samples, were investigated using the .vibrating sample magnetometer (VSM) and the Faraday magneto-optical effect tests. The morphology of the samples were performed by scanning electron microscopy (SEM), atomic force microscopy (AFM) and field emission electron microscopy (FESEM). Finally, the optical and band gap of the samples were calculated using UVVis diffuse reflectance spectroscopy.