Phonon coupling in inelastic atom-surface scattering |
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| Authors: | Berndt Feuerbacher Max A. Adriaens Henk Thuis |
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| Affiliation: | Astronomy Division, Space Science Department of ESA, ESTEC, Noordwijk, Netherlands;Faculteit der Wiskunde en Natuurwetenschappen, Universiteit Nijmegen, Nijmegen, Netherlands |
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| Abstract: | Inelastic scattering of a thermal He beam from a LiF surface has been observed in terms of velocity and intensity distributions as a function of scattering angle. The results allow a correlation with theoretical predictions assuming single Rayleigh phonon coupling for both phonon creation and annihilation processes. A marked decrease of inelastic intensities with momentum or energy transfer is demonstrated, which depends strongly on the temperature of the scattering surface. |
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