The measurements of the surface phonon dispersion relations has been achived recently by means of He atom-surface scattering experiments. The results obtained with this thecnique present unaspected features that can only by explained by considering the role played by the electron-phonon interaction at the surface. In this paper we discuss within a phenomenological model recent measurements performed on the clese pakeed surface of noble metals. We show that resonant modes can be accounted for by a lowering of the surface interactions.
The Theory of Surface Phonons in Metals / Bortolani, Virginio; Santoro, Giorgio. - STAMPA. - (1985), pp. 566-571. (Intervento presentato al convegno Second International Conference on Phonon Physics tenutosi a Budapest nel August 26-31, 1985).
The Theory of Surface Phonons in Metals
BORTOLANI, Virginio;SANTORO, Giorgio
1985
Abstract
The measurements of the surface phonon dispersion relations has been achived recently by means of He atom-surface scattering experiments. The results obtained with this thecnique present unaspected features that can only by explained by considering the role played by the electron-phonon interaction at the surface. In this paper we discuss within a phenomenological model recent measurements performed on the clese pakeed surface of noble metals. We show that resonant modes can be accounted for by a lowering of the surface interactions.
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