[en] We develop a theoretical model for the recently observed threshold for potential sputtering of LiF by slow singly and doubly charged ions. The threshold coincides with the potential energy to create a cold hole in the valence band of LiF by resonant neutralization. We calculate the level shift of the incident ion and the deformation of the valence band under the influence of the projectile. Resonant neutralization becomes possible for ions with recombination energies larger than 10 eV in agreement with the experimental findings. (C) 2000 Elsevier Science B.V. All rights reserved.
Disciplines :
Physics
Author, co-author :
Wirtz, Ludger ; Technische Universität Wien = Vienna University of Technology - TU Vienna > Institute for Theoretical Physics
Hayderer, G.; Technische Universität Wien = Vienna University of Technology - TU Vienna > Institut fu¨r Allgemeine Physik
Lemell, C.; Technische Universität Wien = Vienna University of Technology - TU Vienna > Institute for Theoretical Physics
Burgdorfer, J.; Technische Universität Wien = Vienna University of Technology - TU Vienna > Institute for Theoretical Physics
Hagg, L.; Mid Sweden University > Department of Physics and Mathematics
Reinhold, C. O.; Oak Ridge National Laboratory, Oak Ridge
Varga, P.; Technische Universität Wien = Vienna University of Technology - TU Vienna > Institut für Allgemeine Physik
Winter, P.; Technische Universität Wien = Vienna University of Technology - TU Vienna > Institut für Allgemeine Physik
Aumayr, F.; Technische Universität Wien = Vienna University of Technology - TU Vienna > Institut für Allgemeine Physik
Language :
English
Title :
Curve-crossing analysis for potential sputtering of insulators
Publication date :
2000
Event name :
8th International Workshop on Desorption Induced by Electronic Transitions, Long Branch NJ Army Res Off
Event date :
SEP 27 - OCT 01, 1999
Audience :
International
Journal title :
Surface Science
ISSN :
0039-6028
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
451
Issue :
1-3
Pages :
197-202
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
SEP 27-OCT 01, 1999
8th International Workshop on Desorption Induced by Electronic Transitions
Long Branch
NJ
Army Res Off, Durham, Natl Sci Fdn, Ruters Lab Surface Modificat