GROWTH AND STRUCTURE OF THIN AU FILMS ON AG(111)

The growth and the structure of thin Au films on Ag(111) were studied by measuring the angular distribution of core-level photoelectrons emi tted at high kinetic energy using a two-dimensional display-type elect ron spectrometer. Additional information was obtained by angle-integra ted photoelectron spectroscopy and by thermal desorption spectrometry of NO. We find, even at room temperature, intermixing induced by surfa ce diffusion. This conclusion is corroborated by the study of Au films deposited on (1-3)-monolayer-high Ag films grown on Pd(111).