title: Dipolar excitations at the LIII x-ray absorption edges of the heavy rare-earth metals.
abstract: We report measured dipolar asymmetry ratios at the LIII edges of the heavy rare-earth metals. The results are compared with a first-principles calculation and excellent agreement is found. A simple model of the scattering is developed, enabling us to reinterpret the resonant x-ray scattering in these materials and to identify the peaks in the asymmetry ratios with features in the spin and orbital moment densities.
authors.affiliation: XMaS, European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble Cedex, France.
authors.forename: S D
authors.initials: SD
authors.lastname: Brown
authors.forename: P
authors.initials: P
authors.lastname: Strange
authors.forename: L
authors.initials: L
authors.lastname: Bouchenoire
authors.forename: B
authors.initials: B
authors.lastname: Zarychta
authors.forename: P B J
authors.initials: PB
authors.lastname: Thompson
authors.forename: D
authors.initials: D
authors.lastname: Mannix
authors.forename: S J
authors.initials: SJ
authors.lastname: Stockton
authors.forename: M
authors.initials: M
authors.lastname: Horne
authors.forename: E
authors.initials: E
authors.lastname: Arola
authors.forename: H
authors.initials: H
authors.lastname: Ebert
authors.forename: Z
authors.initials: Z
authors.lastname: Szotek
authors.forename: W M
authors.initials: WM
authors.lastname: Temmerman
authors.forename: D
authors.initials: D
authors.lastname: Fort