Hollow atom dynamics on LiF covered Au(111): Role of the surface electronic structure

E.H. Khemliche, T.A. Schlathölter, R.A. Hoekstra, R.W.H. Morgenstern

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Abstract

We report on measurements of the hollow atom dynamics on a clean and LIF covered Au(111) surface. The KLL-Auger spectrum arising from grazing incidence 6 keV O(7+) projectiles is monitored as a function of the LiF coverage up to 1 monolayer. As the coverage increases, we observe a strong reduction in the above-surface component of the KLL-Auger emission. The astonishing similarity, with respect to KLL-Auger emission, between a single LiF monolayer on Au(111) and a LiF bulk surface, indicates that the large band gap of the latter is not the limiting factor in the neutralization of highly charged ions. [S0031-9007(98)06822-7].

Original languageEnglish
Pages (from-to)1219-1222
Number of pages4
JournalPhysical Review Letters
Volume81
Issue number6
DOIs
Publication statusPublished - 10-Aug-1998

Keywords

  • ENERGY ION-SCATTERING
  • MULTICHARGED IONS
  • NEUTRALIZATION
  • COLLISIONS
  • INSULATOR
  • EMISSION
  • DEPENDENCE
  • FRONT
  • MODEL

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