title: Magnetism, spin-orbit coupling, and superconducting pairing in UGe2.
abstract: A consistent picture on the mean-field level of the magnetic properties and electronic structure of the superconducting itinerant ferromagnet UGe2 requires inclusion of correlation effects beyond the local density approximation (LDA). The " LDA+U" approach reproduces both the magnitude of the observed moment and the magnetocrystalline anisotropy. The largest Fermi surface sheet is composed primarily of spin majority states with orbital projection m(l) = 0, suggesting a much simpler picture of the pairing than is possible for general strong spin-orbit coupled materials. The quasi-two-dimensional geometry of the Fermi surface supports the likelihood of magnetically mediated p-wave triplet pairing.
authors.affiliation: Department of Physics, University of California, Davis, California 95616, USA.
authors.forename: A B
authors.initials: AB
authors.lastname: Shick
authors.forename: W E
authors.initials: WE
authors.lastname: Pickett