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Villette J, Borisov AG, Khemliche H, et al. Subsurface-channeling-like energy loss structure of the skipping motion on an ionic crystal. Phys Rev Lett. 2000;85(15):3137-40doi: 10.1103/PhysRevLett.85.3137.
Villette, J., Borisov, A. G., Khemliche, H., Momeni, A., & Roncin, P. (2000). Subsurface-channeling-like energy loss structure of the skipping motion on an ionic crystal. Physical review letters, 85(15), 3137-40. https://doi.org/10.1103/PhysRevLett.85.3137
Villette, J, et al. "Subsurface-channeling-like energy loss structure of the skipping motion on an ionic crystal." Physical review letters vol. 85,15 (2000): 3137-40. doi: https://doi.org/10.1103/PhysRevLett.85.3137
Villette J, Borisov AG, Khemliche H, Momeni A, Roncin P. Subsurface-channeling-like energy loss structure of the skipping motion on an ionic crystal. Phys Rev Lett. 2000 Oct 09;85(15):3137-40. doi: 10.1103/PhysRevLett.85.3137. PMID: 11019285.
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Phys Rev Lett. 2000 Oct 09;85(15):3137-40. doi: 10.1103/PhysRevLett.85.3137.

Subsurface-channeling-like energy loss structure of the skipping motion on an ionic crystal.

Physical review letters

J Villette, A G Borisov, H Khemliche, A Momeni, P Roncin

Affiliations

  1. Laboratoire des Collisions Atomiques et Moleculaires (CNRS UMR 8625), Universite Paris Sud, Batiment 351, F-91405, Orsay Cedex France.

PMID: 11019285 DOI: 10.1103/PhysRevLett.85.3137

Abstract

The skipping motion of Ne+ ions in grazing scattering from the LiF(001) surface is studied for velocity below 0.1 a.u. with a time-of-flight technique. It is demonstrated that suppression of electronic excitation and dominance of optical phonon excitation in the projectile stopping results in an odd 1,3,5,... progression of the energy loss peaks, a feature usually ascribed to subsurface channeling. The experimental findings are well reproduced by parameter-free model calculations where thermal vibrations are the dominant cause for the ion trapping and detrapping.

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