Abstract
The electronic bulk and surface band structure of cubic zinc sulphide (``zinc blende'') has been studied by angle-resolved photoelectron spectroscopy using synchrotron radiation. The $s\ensuremath{-}p$ derived bands along the $\ensuremath{\Gamma}\ensuremath{-}K\ensuremath{-}X$ high-symmetry direction have been determined, and the region of the Zn $3d$ line has been examined. Spectra at fixed photon energy and variation of polar electron emission angle were used to determine the dispersion of the surface states along the $\overline{\ensuremath{\Gamma}}\ensuremath{-}\overline{X}$ within the surface Brillouin zone. The experimental data for bulk and surface bands are compared with results of a recent density-functional calculation, which includes the interaction between the $s\ensuremath{-}p$ and the cation d-derived states.
Published Version
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