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Title: Energy loss of keV fluorine ions scattered off a missing-row reconstructed Au(110) surface under grazing incidence

A joint experimental and theoretical study of energy loss is presented for 1-to-4-keV fluorine negative ions in grazing scattering on a missing-row reconstructed Au(110) surface. Measurements of energy losses for various azimuthal orientations of the crystal have been performed by means of a time-of-flight method with a pulsed beam. The dependence of the fraction of surviving negative ions on azimuthal angles, was determined. Our energy-loss data are discussed in light of trajectory and stopping-power calculations, where the explicit inclusion of the nonuniform electron density at the surface provides good agreement with the experimental data. The simulation allows us to delineate various trajectory classes that correspond to different contributions in the energy-loss spectra for various azimuthal orientations of the surface.
Authors:
 [1] ;  [2] ; ;  [1] ; ;  [3]
  1. Institut des Sciences Moleculaires (Unite Mixte de Recherche CNRS Universite, UMR 8214), bat 351, Universite de Paris Sud, Orsay F-91405 (France)
  2. (China)
  3. Department of Physics, Universidad Tecnica Federico Santa Maria, Valparaiso, Casilla 110-V (Chile)
Publication Date:
OSTI Identifier:
21541303
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 83; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.83.032901; (c) 2011 American Institute of Physics
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 74 ATOMIC AND MOLECULAR PHYSICS; ANIONS; BEAMS; COORDINATES; CRYSTALS; ELECTRON DENSITY; ENERGY LOSSES; ENERGY-LOSS SPECTROSCOPY; EXPERIMENTAL DATA; FLUORINE; FLUORINE IONS; GOLD; INCIDENCE ANGLE; KEV RANGE; SCATTERING; STOPPING POWER; SURFACES; TIME-OF-FLIGHT METHOD CHARGED PARTICLES; DATA; ELECTRON SPECTROSCOPY; ELEMENTS; ENERGY RANGE; HALOGENS; INFORMATION; IONS; LOSSES; METALS; NONMETALS; NUMERICAL DATA; SPECTROSCOPY; TRANSITION ELEMENTS