We calculate the Surface Auger Energy Shifts at the (110) surface of B
CC transition metals. We use the equivalent core approximation, which
reduces this problem to the computation of the Surface Segregation Ene
rgy of [Z + 2] and [Z + 1] impurities in a crystal of atomic number Z.
The calculations are carried out in the framework of the tight-bindin
g approximation. General trends are derived and compared with those of
single core hole surface binding energy shifts. (C) 1997 Elsevier Sci
ence Ltd.