ANOMALOUS LINEWIDTH BEHAVIOR OF THE S-3 SURFACE RESONANCE ON AG(110)

Authors
BRACCO G BRUSCHI L TATAREK R FRANCHINI A BORTOLANI V SANTORO G
Citation
G. Bracco et al., ANOMALOUS LINEWIDTH BEHAVIOR OF THE S-3 SURFACE RESONANCE ON AG(110), Europhysics letters, 34(9), 1996, pp. 687-692
Citations number
20
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
34
Issue
9
Year of publication
1996
Pages
687 - 692
Database
ISI
SICI code
0295-5075(1996)34:9<687:ALBOTS>2.0.ZU;2-I
Abstract
We report detailed He atom scattering measurements of the phonon linew idth for the Rayleigh mode S-1 and the resonant mode S-3 of Ag(110) al ong the whole <(Gamma) over bar><(Y) over bar> side of the surface Bri llouin zone as a function of the sample temperature. The novel behavio ur observed for the resonance linewidth is explained by including the mixed-mode nature into the anharmonic calculations performed within th e framework of the Born-von Karman model.