Desorption Methods as Probes of Kinetics and Bonding at Surfaces.

摘要

This paper is divided into two parts. In the first part, a review of desorption methods is presented,with emphasis on the use of temperature programmed desorption (TPD) and electron stimulated desorption (ESD) for understanding the bonding of adsorbed species to surfaces. In the second part,recent studies of the angular distribution of ESD ions from adsorbed layers on W(011) are discussed. The ESD of O(+) ions from oxygen adsorbed on a stepped W(011) surface is shown to be sensitive to the presence of atom steps. (Author)