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Electron stimulated desorption of O+ions: Energy dependence of the desorption efficiency from adsorbed oxygen on metal surfaces and its bearing on the mechanism

Authors
Journal
Surface Science
0039-6028
Publisher
Elsevier
Publication Date
Volume
87
Issue
1
Identifiers
DOI: 10.1016/0039-6028(79)90189-4

Abstract

Abstract Measurements of the structure in the curve of desorption yield versus electron energy for ESD of O + from β 1-oxygen on polycrystalline W and W(100), and from oxidized V are reported. They show definite structure around the core ionization thresholds of the metal atoms. This may be taken as evidence for the existence of Auger mechanisms of ESD, e.g. that proposed recently by Knotek and Feibelman for oxidic oxygen.

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