Adsorption and condensation of Cu on W single-crystal surfaces

Abstract
The adsorption and condensation of Cu up to several monolayers in thickness on tungsten {110} and {100} single‐crystal surfaces are studied by combining low‐energy electron diffraction, Auger electron spectroscopy, thermal desorption spectroscopy, work‐function measurements, and quartz microbalance thickness measurements in one experimental system. The results show drastic differences in the evolution of the structure, work function, and desorption behavior between {110} and {100} surfaces. These differences are understandable in terms of the atomic roughness of the surfaces.