title: Spin-orbit coupling in ferromagnetic nickel.
abstract: We use the Gutzwiller variational theory to investigate the electronic and magnetic properties of fcc nickel. Our particular focus is on the effects of the spin-orbit coupling. Unlike standard relativistic band-structure theories, we reproduce the experimental magnetic-moment direction and we explain the change of the Fermi-surface topology that occurs when the magnetic-moment direction is rotated by an external magnetic field. The Fermi surface in our calculation deviates from early de Haas-van Alphen results. We attribute these discrepancies to an incorrect interpretation of the raw de Haas-van Alphen data.
authors.affiliation: Fachbereich Physik and Material Sciences Center, Philipps-Universität Marburg, D-35032 Marburg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Bünemann
authors.forename: F
authors.initials: F
authors.lastname: Gebhard
authors.forename: T
authors.initials: T
authors.lastname: Ohm
authors.forename: S
authors.initials: S
authors.lastname: Weiser
authors.forename: W
authors.initials: W
authors.lastname: Weber