Abstract
Electron effective-mass values obtained from room-temperature magneto-Seebeck and Hall measurements on have been gathered from the literature. Using Kane's model for an -type inverted electronic energy band structure, the dispersion related for the conduction band has been obtained along with a energy gap of 0.19 eV. Combining these results with the available room-temperature optical data, the relative positions of other bands have been obtained. The heavy-hole valence band, whose maximum is displaced from by ∼ 10% of the distance to the Brillouin-zone edge, has a possible small overlap with the conduction band. These two bands are split at by a residual gap of ∼ 0.04 eV. There is a second conduction band whose minimum at is ∼ 0.6 eV above the valence band and perhaps a third one ∼ 0.4 eV above the latter.
- Received 5 October 1976
DOI:https://doi.org/10.1103/PhysRevB.15.3872
©1977 American Physical Society