Abstract
Angle-resolved energy distributions for photoelectrons emitted from the Bi(111) single crystal face are presented at 16.85 eV photon energy. The variation of peak-energy positions as a function of the electron emission angle shows four main dispersing features located between the Fermi level and 5 eV. The bulk electronic structure is found in qualitative agreement with the pseudopotential calculation performed by Golin along the TMU and TQW symmetry lines of the Brillouin zone. The experimental features located at around 0.3 and 3 eV below the Fermi level are sampled in the two-dimensional Brillouin zone along the and symmetry directions (dispersion about 1 eV) and are assigned to electronic surface states.
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