Modification of transition metal electronic structure by P, S, C1, and Li adatoms.

We have evaluated the electronic perturbations induced on a thin Rh (001) film by the adsorption of 1/4 monolayer coverages of P, S, C1 or Li atoms. The self-consistent Surface Linearized Augmented Plane Wave (SLAPW) calculations indicate that the P, S, and C1 adlayers cause only very slight work function changes, and generally give rise to perturbations in the valence charge that are small beyond the nearest neighbor Rh atoms. The same is true of any screened quantity.