Angle-resolved photoemission studies of the valence-band structure of stepped crystal surfaces: Cu(S)-(3(111) x (100))

Journal Article · Fri Feb 15 00:00:00 EST 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.31.1997· OSTI ID:6105964

Davis, R F; Williams, R S; Kevan, S D; Wehner, P S; Shirley, D A

Angle-resolved photoemission spectra are reported for the stepped Cu(211) face in the photon-energy range 9< or =h..nu..< or =34 eV. The valence-band (VB) spectra are interpreted in terms of a direct-transition model for bulk photoemission. Determination of VB dispersion relations and assignment of the bands are aided by use of selection rules involving the transmitted-radiation vector potential and several different experimental geometries. The major results are (1) it is possible to determine experimental VB dispersion relations for a lower-symmetry direction such as Cu(211), and (2) VB dispersion relations for stepped Cu(211) show excellent agreement with bulk valence bands interpolated along the (211) direction, uninterrupted by band-gap photoemission, the effects of which are not observed. It is concluded that the unusual structure of the stepped surface does not significantly perturb the bulk electronic structure near the surface in this case.

• Research Organization: Materials and Molecular Research Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 and Department of Chemistry, University of California, Berkeley, California 94720
• OSTI ID: 6105964
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 31:4
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPPER
ELECTRONIC STRUCTURE
PHOTOELECTRON SPECTROSCOPY
ANGULAR DISTRIBUTION
AUGER ELECTRON SPECTROSCOPY
DISPERSION RELATIONS
ELECTRON DIFFRACTION
EXPERIMENTAL DATA
MONOCRYSTALS
SELECTION RULES
SURFACES
SYNCHROTRON RADIATION
ULTRAHIGH VACUUM
BREMSSTRAHLUNG
COHERENT SCATTERING
CRYSTALS
DATA
DIFFRACTION
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTS
INFORMATION
METALS
NUMERICAL DATA
RADIATIONS
SCATTERING
SPECTROSCOPY
TRANSITION ELEMENTS
360104* - Metals &amp; Alloys- Physical Properties