THEORETICAL-STUDY OF THE CINNABAR PHASES IN GAAS AND GAP

Authors
MUJICA A MUNOZ A NEEDS RJ
Citation
A. Mujica et al., THEORETICAL-STUDY OF THE CINNABAR PHASES IN GAAS AND GAP, Physical review. B, Condensed matter, 57(3), 1998, pp. 1344-1347
Citations number
13
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
57
Issue
3
Year of publication
1998
Pages
1344 - 1347
Database
ISI
SICI code
0163-1829(1998)57:3<1344:TOTCPI>2.0.ZU;2-8
Abstract
We present an ab initio pseudopotential study of the cinnabar phases o f GaAs and GaP, which are covalently bonded fourfold-coordinated struc tures formed from twisted tetrahedra. We find that these phases are no t thermodynamically stable. We suggest, however, that cinnabar-GaP cou ld be formed as a metastable phase by releasing pressure from the Cmcm phase, as recently observed in GaAs.