Information about the band structure of LiC 6 from inelastic synchrotron X-ray scattering

Abstract

Inelastic X-ray scattering spectroscopy (IXSS) is a useful tool for getting information about the band structure. Here IXSS-measurements of LiC 6 and HOPG are presented. A nearly rigid-band behavior of the unoccupied energy levels is observed, except for the σ-type interlayer state, which shifts down in energy by 2 eV upon intercalation. By estimating the number of unoccupied π-states from the integral intensity of the core excitation spectra for LiC 6 and HOPG the amount of charge transfer to the graphite π-bands could be established.