RAINBOW SCATTERING AT SURFACE STEPS

Authors
PFANDZELTER R KOWALSKI T IGEL T WINTER H
Citation
R. Pfandzelter et al., RAINBOW SCATTERING AT SURFACE STEPS, Surface science, 411(3), 1998, pp. 894-899
Citations number
18
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
411
Issue
3
Year of publication
1998
Pages
894 - 899
Database
ISI
SICI code
0039-6028(1998)411:3<894:RSASS>2.0.ZU;2-M
Abstract
We report on a new kind of rainbow scattering observed for 25 keV He+- ions scattered under glancing angles of incidence from an irregularly stepped Fe(001)-surface. Polar angular distributions of scattered proj ectiles show an additional peak at smaller angles, which is ascribed t o scattering at isolated downward steps on the surface. Based on class ical trajectory calculations we identify the observed feature as a rai nbow and deduce the interaction potential for fast ions at large dista nces. (C) 1998 Elsevier Science B.V. All rights reserved.