Angle resolved auger surface spectroscopy
J. W. Gadzuk
Surface Science 60, 76-84 (1976)
Abstract:
The angular distribution of electrons ejected in core-valence-valence Auger transitions of atoms
chemisorbed on metal surfaces is considered theoretically. Since the valence electrons participating
in the Auger transition are also involved in chemical bonding to the surface, these initial states
contain information pertaining to the chemisorption bonding geometry. The role of the initial state
symmetry in determining the angle resolved Auger surface spectrum (ARASS) is investigated through model
calculations and is found to be small. Thus the ARASS is expected to be a smoothly varying function of
angle with 
± 15% modulations
due to diffraction effects, in agreement with recent experimental results for S adsorbed on Ni(100).
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