Adsorption and condensation of Cu on W singlehyphen;crystal surfaces

摘要

The adsorption and condensation of Cu up to several monolayers in thickness on tungsten {110} and {100} singlehyphen;crystal surfaces are studied by combining lowhyphen;energy electron diffraction, Auger electron spectroscopy, thermal desorption spectroscopy, workhyphen;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.