title: Theory of spin-polarized optical potential.
abstract: We develop an approximation for the non-local spin-polarized optical potential theory for atoms in solids at intermediate and high energy. The present approximation for the optical potential builds on the GW-expression. We separate the RPA polarization propagator into a core electron and a valence electron part, and can then achieve a corresponding separation of the optical potential. For the valence electron optical potential we use a local density approximation because the charge density changes fairly slowly, whereas we use a non-local optical potential for the core electron part. Both of them depend on the spin-polarization. We apply this method to electron-Fe elastic scattering in solid, and discuss the results.
authors.affiliation: Graduate School for Science, Chiba University, Inage, Japan. hatada@scichem.s.chiba-u.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Hatada
authors.forename: H
authors.initials: H
authors.lastname: Tanaka
authors.forename: T
authors.initials: T
authors.lastname: Fujikawa
authors.forename: L
authors.initials: L
authors.lastname: Hedin