Abstract
Time-of-flight measurements have been performed on the inelastic scattering of room-temperature beams of H2 and D2 molecules from a LiF(100) surface. The results show a discrete loss peak near the molecular rotational excitation energy that disperses with scattering angle. This indicates that rotationally inelastic scattering is dissipative rather than diffractive, i.e. it includes phonon excitations in the solid. The phonons involved can be identified as single Rayleigh surface phonons.
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© 1982 Plenum Press, New York
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Feuerbacher, B. (1982). Rotational Accommodation at Surfaces Via Rayleigh Phonons. In: Caudano, R., Gilles, JM., Lucas, A.A. (eds) Vibrations at Surfaces. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-4058-4_6
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DOI: https://doi.org/10.1007/978-1-4684-4058-4_6
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