Abstract
As a first step to an understanding of the atomic chemisorption of C1 on Cu(001) and Cu(111) we have studied high-resolution angle and photon-polarization dependent photoelectron spectra of the clean substrate surfaces. In a subsequent paper we will (besides presenting the energy dispersion curves of the adsorbate-derived bands) in particular discuss and interpret the adsorbate-induced changes within the substrate 3d-band emission spectra. Therefore a detailed understanding of the clean substrate emission was a necessary prerequisite. We demonstrate that a clear identification of bulk direct transitions, surface state emission and contributions from density of states transitions can be given. In particular we investigated the photoemission spectra from Cu(001) in the ΓXWK bulk mirror plane excited by NeI, Hel and HeII radiation, from Cu(001) in the ΓXUL plane excited by HeI radiation, and from Cu(111) along ΓLUX and ΓLKL (HeI). The experimental bulk direct transitions are in very good agreement with simple calculations based on Burdick's initial state band structure and a free electron like final state.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
