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, S. Schippers

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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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