A study of the dynamics of the Ag(110) surface in the ḡGȲ direction is presented. The experimental TOF spectra show the existence of two low frequency modes with high scattering intensity and a dispersionless high frequency mode with a smaller intensity. The theoretical analysis based on a force constant model that contains long-range central interactions and short-range angular forces explains accurately both the dispersions and the scattering intensities of the three modes in terms of resonant and localized vibrations related to the modifications of the surface force constants caused by the different role played by the many-body forces in the surface region.

Surface Resonant Phonons of Ag(110) / Tatarek, R.; Bracco, G.; Tommasini, F.; Franchini, Anna; Bortolani, Virginio; Santoro, Giorgio; Wallis, R. F.. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 211-212(1989), pp. 314-322. [10.1016/0039-6028(89)90784-X]

Surface Resonant Phonons of Ag(110)

FRANCHINI, Anna;BORTOLANI, Virginio;SANTORO, Giorgio;
1989

Abstract

A study of the dynamics of the Ag(110) surface in the ḡGȲ direction is presented. The experimental TOF spectra show the existence of two low frequency modes with high scattering intensity and a dispersionless high frequency mode with a smaller intensity. The theoretical analysis based on a force constant model that contains long-range central interactions and short-range angular forces explains accurately both the dispersions and the scattering intensities of the three modes in terms of resonant and localized vibrations related to the modifications of the surface force constants caused by the different role played by the many-body forces in the surface region.
211-212
314
322
Surface Resonant Phonons of Ag(110) / Tatarek, R.; Bracco, G.; Tommasini, F.; Franchini, Anna; Bortolani, Virginio; Santoro, Giorgio; Wallis, R. F.. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 211-212(1989), pp. 314-322. [10.1016/0039-6028(89)90784-X]
Tatarek, R.; Bracco, G.; Tommasini, F.; Franchini, Anna; Bortolani, Virginio; Santoro, Giorgio; Wallis, R. F.
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: http://hdl.handle.net/11380/452128
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 31
  • ???jsp.display-item.citation.isi??? 32
social impact