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Stimulated desorption of rare gas neutrals-calculation of yield and kinetic energy distributions

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Zeitschrift für Physik B Condensed Matter

Abstract

The Antoniewicz model is used to study the stimulated desorption of argon and krypton neutrals from Ru(001). We solve the Schrödinger equation semiclassically and find good agreement with the experiment for both the desorption yield and the kinetic energy distribution of the argon and krypton atoms. We use a reneutralization rate which consists of a single exponential inside a certain distance and is equal to zero outside. In contrast to earlier theories, we obtain in agreement with the experiment a relatively high yield, a low most probable kinetic energy and slowly decaying high energy tails of the kinetic energy distribution of the desorbing rare gas neutrals. We show explicitly that the single exponential form previously used for the reneutralization rate cannot account for the three relevant experimental findings simultaneously.

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Authors and Affiliations

  1. Institute for Theoretical Physics, Freie Universität Berlin, Arminallee 14, D-1000, Berlin 33, Germany

    W. Hübner & K. -H. Bennemann

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  1. W. Hübner
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  2. K. -H. Bennemann
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Dedicated to Professor W. Brenig on the occasion of his 60th birthday

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Hübner, W., Bennemann, K.H. Stimulated desorption of rare gas neutrals-calculation of yield and kinetic energy distributions. Z. Physik B - Condensed Matter 78, 131–136 (1990). https://doi.org/10.1007/BF01317365

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  • DOI: https://doi.org/10.1007/BF01317365

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