Characterization of Symmetry Properties of Pt(111) Electron Bands by Means of Angle-, Energy-, and Spin-Resolved Photoemission with Circularly Polarized Synchrotron Radiation

Abstract

An angle-, energy-, and spin-resolved photoemission experiment has been performed for Pt(111) with the circularly polarized synchrotron radiation of the new German dedicated storage ring BESSY. The photoelectron polarization measured as function of the kinetic energy at different photon energies between 6.5 and 24 eV for normal incidence and normal emission shows a pronounced spectral variation up to \ifmmode\pm\else\textpm\fi{}55%. The electron intensities and polarizations observed allow a symmetry-resolved band characterization of Pt in the $\ensuremath{\Gamma}\ensuremath{-}L$ direction.