A Comparative Study Between Magnesium Ferrite (Mgfe₂O₄) and Cobalt Ferrite (Cofe₂O₄) in Terms of Optical Properties

This investigation provides a comparative examination of the optical characteristics of magnesium ferrite (MgFe₂O₄) and cobalt ferrite (CoFe₂O₄), which are two significant spinel ferrites utilized in various applications, including photocatalysis, sensing technologies, and energy-related devices. A range of optical attributes, including the absorption coefficient, refractive index, dielectric function, electrical conductivity, and loss function, were systematically analyzed and contrasted. The findings indicated that both materials exhibit pronounced absorption in the low-energy spectrum, with MgFe₂O₄ demonstrating robust absorption in the high-energy range (40-60 eV), whereas CoFe₂O₄ revealed considerable absorption in the intermediate energy range (10-30 eV). Additionally, CoFe₂O₄ displayed a dielectric response characterized by sharper peaks, suggesting more localized electronic transitions. Moreover, notable distinctions in conductivity and loss function were identified between the two materials. This research substantiates the critical role of chemical composition and crystalline structure in influencing the optical properties of these compounds, thereby enriching the comprehension of their applicability in optical and sensing domains.