Author/Authors :
Berthold، نويسنده , , W. and Feulner، نويسنده , , P. and Hِfer، نويسنده , , U.، نويسنده ,
Abstract :
Decoupling of image-potential states from bulk Cu(1 0 0) by Ar spacer layers has been investigated by time-resolved two-photon photoemission. Ordered films with thicknesses of up to five monolayers have been prepared that lead to a lifetime increase of almost three orders of magnitude. It is also demonstrated that continuum models fail to give a satisfactory description of the adlayer electronic structure.
