Loading...
research article
STRUCTURE AND PHASE-STABILITY OF GAXIN1-XP SOLID-SOLUTIONS FROM COMPUTATIONAL ALCHEMY
The structural and thermodynamical properties of GaxIn1-xP solid solutions are studied using Monte Carlo simulations based on density-functional perturbation theory. The free-standing alloy displays a model random behavior, with a miscibility gap below approximately 820 K. In samples grown on a GaAs (001) substrate, the resulting epitaxial strain stabilizes various ordered phases which give rise to a rich phase diagram below approximately 230 K. Among these phases, the chalcopyrite is dominant for x = 0.5, and two new, more complex, stable phases have been identified at different concentrations.
Type
research article
Authors
Publication date
1994
Published in
Volume
72
Issue
25
Start page
4001
End page
4004
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
June 29, 2012
Use this identifier to reference this record