TEMPERATURE-DEPENDENCE OF THE AG(110) SURFACE PHONONS

Authors
BRACCO G BRUSCHI L PEDEMONTE L TATAREK R
Citation
G. Bracco et al., TEMPERATURE-DEPENDENCE OF THE AG(110) SURFACE PHONONS, Surface science, 377(1-3), 1997, pp. 325-329
Citations number
24
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
377
Issue
1-3
Year of publication
1997
Pages
325 - 329
Database
ISI
SICI code
0039-6028(1997)377:1-3<325:TOTASP>2.0.ZU;2-W
Abstract
We present an experimental study of the S-1 and S-3 phonon modes of Ag (110) between 300 and similar to 700 K. The study was carried out alon g the [001] direction by means of energy-resolved He atom scattering w ith time-of-flight detection. The energy shifts of the modes were meas ured over most of the surface Brillouin zone. A non-linear behavior of the S-3 shifts above 600 K was observed for the first time. The surfa ce anharmonicity constants were also evaluated.