E 0+Δ0 transitions in GaSb/AlSb quantum wells
- 26 January 1987
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 50 (4) , 182-184
- https://doi.org/10.1063/1.97655
Abstract
We have observed optical transitions between the first subbands of the conduction band and the split‐off valence band in GaSb/AlSb quantum well structures. The well width dependence of the emission energies is traced to quantization in the conduction band and in the split‐off band. By comparison with data for the band‐edge transitions the effective Δ0 gaps is the quantum wells are determined. Contrary to previous calculations the Δ0 gap energies are almost independent of the well width.Keywords
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