Possibility of minimal surface contributions to low photon energy angle-resolved photoemission of CeRu2Si2.

摘要

Surface-related effects in angle-resolved valence spectra of CeRu(sub 2)2Si(sub 2) at the Ce 4d-(yields) resonance threshold for different cleaved surfaces are presented and compared to angle-integrated valence spectra and to bulk-sensitive Ce 3d-edge valence spectra. Evidence that Ce 4d-edge photoemission spectroscopy on ideal cleaved surfaces is dominated by bulk Ce 4f states is presented.