Abstract
We report a detailed study of the band structure over the entire composition range. We have determined the energies, as a function of temperature, at which the direct transitions , , , and occur, and those at which the indirect transitions and occur. A simple physical model is proposed to explain the experimental values of the , , , bowing parameters. A detailed comparison is made between our results and previously reported ones.
- Received 1 December 1982
DOI:https://doi.org/10.1103/PhysRevB.27.4946
©1983 American Physical Society