Abstract
The electronic structure of La0.6Sr0.4FeO3 thin film on MgO substrate has been studied using resonant soft-X-ray emission spectroscopy (SXES) and X-ray absorption spectroscopy (XAS). The thin film has the mixed valence states of Fe2+ and Fe3+ in the ground state. The valence band is mainly composed of O 2p state hybridized with t2g and eg states of Fe 3d. The conduction band is composed of t2g and eg states of Fe 3d. and hole-induced state created by Sr doping. These findings accord with the result of electronic structure expected by tight-binding calculation that included the effect of electron-electron interaction.
