Valence electronic structure of alkalis adsorbed on free-electron like and transition metals

Application of a simple wave function-matching technique is made to the problem of alkali adsorption on free-electron like substrates, giving in particular an estimate of the width of the resonance at a given adatom-substrate separation, which is then compared to existing first-principles calculations. The model is then applied to the alkali/transition-metal problem, thus assuming the non-importance of the transition-metal d-bands relative to their sp-bands. The results indicate a fair amount of hybridization between the ns and np valence levels of the alkali adatom.