Abstract
In the past very little was known about the dispersion curves of surface phonons and how they interact with gas atoms colliding with the surface. Recent molecular beam scattering experiments now provide the first detailed information on surface phonon dispersion curves and on the inelastic cross sections. In this brief review we first summarize some results from the theory of surface phonons and of inelastic cross sections. Next we describe the helium time of flight apparatus used to study the surface phonon dispersion curves of the alkali halides. Results are presented for LiF, NaF and KCl. Finally the influence of selective adsorption on the inelastic intensities is discussed.
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Toennies, J.P. (1982). Phonon Interactions in Atom Scattering from Surfaces. In: Benedek, G., Valbusa, U. (eds) Dynamics of Gas-Surface Interaction. Springer Series in Chemical Physics, vol 21. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-86455-1_16
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DOI: https://doi.org/10.1007/978-3-642-86455-1_16
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