A model calculation on the electronic structure of Ni-Cu and Pd-Ag alloys

The electronic structure of Ni-Cu and Pd-Ag alloy surfaces is investigated by the CNDO/2 tight-binding method. In both alloys, the VIIIB and IB metal atoms form the independent d sub-bands, which is qualitatively consistent with the calculations by the coherent-potential approximation and with photoemission spectroscopy experiments.