Present study reports the electronic structures of Cr doped Fe3O4 (Fe3-xCrxO4 (0 x 3) grown on MgO (100)
substrates in the form of thin films fabricated by a plasma–oxygen assisted Molecular Beam Epitaxy (MBE). X-ray
absorption near-edge structure (XANES) spectra at Cr & Fe L-, and O K-edges were used to understand the
electronic structure: changes in the bonding nature, valence states, and site occupancies. Cr doping in Fe3O4
results in the change of charge transfer, crystal structure, and selective occupation of ions in octahedral and
tetrahedral sites. Such change modifies the electrical and magnetic properties due to the covalency of Cr ions. The
physical and chemical properties of ferrites are strongly dependent on the lattice site, ion size of dopant, and
magnetic nature present at different structural symmetry of the spinel structure.
