EVIDENCE FOR THE SHEAR HORIZONTAL PHONON MODE ON THE NACL(001) SURFACE

Authors
GLEBOV A SILVESTRI W TOENNIES JP BENEDEK G SKOFRONICK JG
Citation
A. Glebov et al., EVIDENCE FOR THE SHEAR HORIZONTAL PHONON MODE ON THE NACL(001) SURFACE, Physical review. B, Condensed matter, 54(24), 1996, pp. 17866-17869
Citations number
33
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
24
Year of publication
1996
Pages
17866 - 17869
Database
ISI
SICI code
0163-1829(1996)54:24<17866:EFTSHP>2.0.ZU;2-6
Abstract
High-resolution He atom inelastic-scattering experiments provide evide nce for the shear horizontal surface phonons on the in situ cleaved Na Cl(001) surface. The measurements were made in a sagittal plane along the [210] azimuth and beyond the first surface Brillouin zone. A slab calculation using the breathing shell model and a surface perturbation that fulfills invariance conditions is used to identify the polarizat ions of the observed surface phonons.