Multiphonon processes in atom-surface scattering
- 17 June 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (24) , 3160-3163
- https://doi.org/10.1103/physrevlett.66.3160
Abstract
Helium-atom time-of-flight spectra taken at 69-meV incident energy in scattering from Pt(111) show energy-loss peaks that cannot be assigned to one-phonon transitions, but are qualitatively explained by simple formulas for the multiphonon processes in the classical limit. This assignment is supported by trajectory-approximation calculations that correctly reproduce the experimentally determined density of states of Pt(111).Keywords
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