Theory of ion-stimulated electron emission from simple metals: Explicit calculations

A description of ion-stimulated electron emission from metals developed earlier was applied to ions which strike aluminum metal at both grazing and normal incidence. The electronic response of the substrate is modeled within the jellium picture. For grazing incidence, realistic ion trajectories whic...

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Bibliographic Details
Published in:Physical review. B, Condensed matter Condensed matter, 1995-05, Vol.51 (20), p.14604-14611
Main Authors: Gaspar, JA, Eguiluz, AG, Mills, DL
Format: Article
Language:English
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Summary:A description of ion-stimulated electron emission from metals developed earlier was applied to ions which strike aluminum metal at both grazing and normal incidence. The electronic response of the substrate is modeled within the jellium picture. For grazing incidence, realistic ion trajectories which allow penetration of the ions into the metal were used. The substrate response is described microscopically, so a proper description of short-wavelength aspects is incorporated fully in the calculations. Response functions used are those for a jellium slab, so that electron emission mediated by bulk plasmons is described. The results reproduce very well the experimental data reported by Rau, for the case of grazing incidence. In addition, calculations for the case of normal incidence are presented.
ISSN:0163-1829
1095-3795
DOI:10.1103/PhysRevB.51.14604