| Issue |
Europhys. Lett.
Volume 34, Number 9, June III 1996
|
|
|---|---|---|
| Page(s) | 687 - 692 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00575-8 | |
| Published online | 01 September 2002 | |
Anomalous linewidth behaviour of the S3 surface resonance on Ag(110)
1
Dipartimento di Fisica - Via Dodecaneso 33, 16146 Genova, Italy
2
Unità INFN e Dipartimento di Fisica - Via Campi 213/A, 41100 Modena,
Italy
Received:
16
April
1996
Accepted:
7
May
1996
We report detailed He atom scattering measurements of
the phonon line width for the Ray leigh mode S1 and the
resonant mode S3 of Ag(110) along the whole 
side of the surface Brillouin zone as a function of the sample temperature.
The novel behaviour observed for
the resonance linewidth is explained by including the mixed-mode
nature into the anharmonic calculations performed within the
framework of the Born-von Karman model.
PACS: 68.35.Ja – Surface and interface dynamics and vibrations / 63.20.Ry – Anharmonic lattice modes / 79.20.Rf – Atomic, molecular, and ion beam interactions with surfaces
© EDP Sciences, 1996
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