In this paper are presented theoretical calculations of the linewidth of the Rayleigh phonon propagating along high symmetry directions of the (111) surfrace of Aluminium both for different temperatures and for different values of the phonon momentum. The interatomic potential pf the crystal contains both a harmonic part which describes the normal vibrations of the crystal and a cubic part which is the dominant term of the lifetimes of the vibrations. The calculations show a rapid decay when either the temperature of the momentum transfer decrease, and a large anisotropy with the direction od the momentum transfer.

Surface Phonon Linewidth / Franchini, Anna. - STAMPA. - (1993), pp. 39-48. ((Intervento presentato al convegno Working Party on Inelastic energy transfer and Interactions with surfaces and adsorbates tenutosi a Trieste (Italy) nel 31 agosto - 11 settembre 1992.

Surface Phonon Linewidth

FRANCHINI, Anna
1993

Abstract

In this paper are presented theoretical calculations of the linewidth of the Rayleigh phonon propagating along high symmetry directions of the (111) surfrace of Aluminium both for different temperatures and for different values of the phonon momentum. The interatomic potential pf the crystal contains both a harmonic part which describes the normal vibrations of the crystal and a cubic part which is the dominant term of the lifetimes of the vibrations. The calculations show a rapid decay when either the temperature of the momentum transfer decrease, and a large anisotropy with the direction od the momentum transfer.
Working Party on Inelastic energy transfer and Interactions with surfaces and adsorbates
Trieste (Italy)
31 agosto - 11 settembre 1992
39
48
Franchini, Anna
Surface Phonon Linewidth / Franchini, Anna. - STAMPA. - (1993), pp. 39-48. ((Intervento presentato al convegno Working Party on Inelastic energy transfer and Interactions with surfaces and adsorbates tenutosi a Trieste (Italy) nel 31 agosto - 11 settembre 1992.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/464857
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact