The adsorption of Li on an n-type doped Si(100) surface has been inves
tigated by TDS, Delta Phi, AES and LEED measurements. Three distinct a
dsorption sites on the Si surface have been identified apart from the
multilayer adsorption. The changes in the adsorption sites occur at ab
out 0.5, 1 and 2 monolayers, which agree well with recent theoretical
predictions.