Structural and Optical Properties of Ba and Co-Doped Lanthanum Ferrite at Room Temperature

Ferrites are ferri-magnetic materials having opposite spins of unequal magnetization (non-zero magnetization). Lanthanum ferrites (perovskite oxides) are candidate materials for application as oxygen carriage membranes, cathode materials for chemical sensor applications, the chemical and food industries, and for environmental monitoring. The citrate autocombustion method has been used to synthesize 10% (Ba and Co-doped) LaFeO3 ferrites. Microstructural analyses were carried out by XRD and SEM. The chemical composition of prepared nanoparticles was also analyzed with the help of energy dispersive X-ray spectrum (EDS). The FTIR spectra exhibit an absorption band corresponding to Fe–O stretching vibration. Optical measurements were studied by UV–visible technique.