title: Spin-resolved mapping of spin contribution to exchange-correlation holes.
abstract: By means of spin-polarized electron coincidence spectroscopy we explore the fundamental issue of spin-resolved contributions to the exchange-correlation hole in many-electron systems. We present a joint experimental and theoretical study of correlated electron pair emission from a ferromagnetic Fe(001) surface induced by spin-polarized low-energy electrons. We demonstrate that the contribution to the exchange-correlation hole due to exchange is more extended than the contribution due to the screened Coulomb interaction.
authors.affiliation: Max-Planck Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany.
authors.forename: F O
authors.initials: FO
authors.lastname: Schumann
authors.forename: C
authors.initials: C
authors.lastname: Winkler
authors.forename: J
authors.initials: J
authors.lastname: Kirschner
authors.forename: F
authors.initials: F
authors.lastname: Giebels
authors.forename: H
authors.initials: H
authors.lastname: Gollisch
authors.forename: R
authors.initials: R
authors.lastname: Feder