title: Polarized dispersion of X-rays in pyrite.
abstract: Diffraction of synchrotron radiation in a crystal of FeS2 reveals dipolar anisotropy of anomalous scattering by Fe near its K-absorption edge, in spite of the almost-regular octahedral geometry of the nearest S neighbors. At 7121 eV, the magnitude of f changes with polarization direction by as much as 0.7 electron units. No effects of quadrupolar anisotropy were detected.
authors.affiliation: Department of Chemistry, University of California, Berkeley 94720, USA.
authors.forename: D H
authors.initials: DH
authors.lastname: Templeton
authors.forename: L K
authors.initials: LK
authors.lastname: Templeton
mesh_terms: D016880:Anisotropy; D018360:Crystallography, X-Ray; D007501:Iron / Q000737:chemistry*; D008962:Models, Theoretical; D012542:Scattering, Radiation; D013440:Sulfides / Q000737:chemistry*; D017356:Synchrotrons
chemical_list: D013440:Sulfides; C011342:pyrite; D007501:Iron