OBSERVATION OF TRANSVERSE PHONON MODES IN THE FIRST BRILLOUIN-ZONE INALUMINUM

Authors
ROBINSON RA MCQUEENEY RJ KELLEY TM
Citation
Ra. Robinson et al., OBSERVATION OF TRANSVERSE PHONON MODES IN THE FIRST BRILLOUIN-ZONE INALUMINUM, Physica. B, Condensed matter, 241, 1997, pp. 161-163
Citations number
6
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
241
Year of publication
1997
Pages
161 - 163
Database
ISI
SICI code
0921-4526(1997)241:<161:OOTPMI>2.0.ZU;2-5
Abstract
We describe phonon dispersion measurements on a single crystal of alum inum, using the 1280-pixel low-angle detector on PHAROS at Los Alamos. ''Forbidden'' transverse phonons are observed in the first Brillouin zone: these are due to multiple scattering that preserves the e-depend ence of the dispersion surface. We discuss the use of large-area detec tors for imaging dispersion surfaces. (C) 1998 Elsevier Science B.V. A ll rights reserved.