Long-wavelength optical phonons in ternary nitride-based crystals

Authors
Yu, SG Kim, KW Bergman, L Dutta, M Stroscio, MA Zavada, JM
Citation
Sg. Yu et al., Long-wavelength optical phonons in ternary nitride-based crystals, PHYS REV B, 58(23), 1998, pp. 15283-15287
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
58
Issue
23
Year of publication
1998
Pages
15283 - 15287
Database
ISI
SICI code
0163-1829(199812)58:23<15283:LOPITN>2.0.ZU;2-S
Abstract
Phonon modes in column-III-nitride ternary semiconductors an investigated t heoretically within the modified random-element isodisplacement model. It i s found that A(1) and E-1 branches of optical phonons in wurtzite GaxAl1-xN and InxGa1-xN exhibit one-mode behavior. This result is explained by the f act that atomic mass of nitrogen is much smaller than those of other atoms. [S0163-1829(98)05447-2].