Signature of metastable electrons in highly charged ion surface interactions
Atomic Physics
2009-10-30 v3
Abstract
We present autoionization spectra of metastable Ar(8+) and C(4+), N(5+), O(6+) and Ne(8+) scattering off an Al(111) surface with incident energies down to 5 eV. The unprecedented quality of the experimental data permits the observation of a unique, yet undiscovered peak in the structures originating from the metastable projectiles compared to corresponding ground state configurations. Analyzing the peak positions for different projectile species and velocities we demonstrate that the peak must be ascribed to an above-surface transition under participation of the metastable state.
Keywords
Cite
@article{arxiv.physics/9712021,
title = {Signature of metastable electrons in highly charged ion surface interactions},
author = {J. Ducree and J. Mrogenda and E. Reckels and M. Ruether and A. Heinen and Ch. Vitt and M. Venier and J. Leuker and H. J. Andrae},
journal= {arXiv preprint arXiv:physics/9712021},
year = {2009}
}
Comments
12 pages, 3 figures, http://pikp28.uni-muenster.de/~ducree