Elsevier

Surface Science

Volume 216, Issues 1–2, 1 June 1989, Pages L357-L365
Surface Science

Surface science letters
Evidence for production of inner-shell vacancies in slow multicharged F ions interacting with a Cu surface

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Abstract

Electron energy distributions have been measured for Fq+ ions (∼ q × 10 keV, q = 2–8) interacting with a Cu surface at 5° grazing incidence. The measurements show evidence for K-shell excitation in Fq+ (q ⩽, 6) ions. The resultant inner-shell vacancy production is understood in terms of calculated molecular orbital diagrams which qualitatively describe the close collisions between the incident ion and the target atoms. When the K-shell vacancy is created in the collision, the mean KLL Auger electron energy shows a shift to higher energies relative to that observed for K-vacancies carried into the collision. This shift occurs since the KLL Auger decay for a vacancy created in the collision is constrained to take place late in the neutralization process, where the K- and L-shell energies differ from those in the less screened ion.

References (21)

  • D.M. Zehner et al.

    Surface Sci.

    (1986)
  • K.J. Snowdon

    Nucl. Instr. Methods

    (1988)
  • P. Apell

    Nucl. Instr. Methods

    (1987)
  • F.W. Meyer

    Nucl. Instr. Methods

    (1985)
  • M. Delaunay et al.

    Europhys. Letters

    (1987)
  • S.T. de Zwart

    PhD Thesis

    (1987)
  • L. Folkerts et al.

    Proc. Intern. Conf. on the Physics of Multicharged Ions, Grenoble, France

    J. Phys. (Paris) Colloq.

    (September 12–16 1988)
  • F.W. Meyer

    Proc. Intern. Conf. on the Physics of Multicharged Ions, Grenoble, France

    J. Phys. (Paris) Colloq.

    (September 12–16 1988)
  • F.W. Meyer et al.

    Phys. Rev.

    (1987)
  • D. Schneider et al.

    Phys. Rev.

    (1979)
There are more references available in the full text version of this article.

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Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.

∗∗

Permanent address: Department of Physics, University of Osnabrück, 4500 Osnabrück, Fed. Rep. of Germany.

∗∗∗

Permanent address: Hahn-Meitner-Institute für Kernforschung GmbH Berlin, Glienichkerstrasse 100, D-1000 Berlin 39, Germany.

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