Abstract
Angular-resolved Auger electron spectroscopy (ARAES) was applied for the investigation of the Ni(001) face of both a clean surface and a surface covered with a c(2 × 2) sulphur layer at different sample temperatures. Polar ARAES profiles measured for the NiM 2,3VV transition are presented for the [100] and [110] azimuths, for the full Auger current and for particular Auger energies as well. These latter profiles are theoretically calculated and compared with experiment. An increase of the temperature up to 980 K does not influence appreciably the polar ARAES profiles for the c(2 × 2) S Ni (001) sample. It indicates that the atomic structure of the surface investigated is not changed in this temperature region.
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