Transitions to confined states of the split-off band in GaAs-(Al,Ga)As multiple-quantum-well heterostructures
- 15 May 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 35 (14), 7784-7786
- https://doi.org/10.1103/physrevb.35.7784
Abstract
By studying the low-temperature photoluminescence excitation spectra from a number of GaAs-(Al,Ga)As multiple-quantum-well heterostructures with various well widths and Al fractions we provide the most conclusive evidence yet published for the observation of optical absorption from a confined hole state in the split-off band of GaAs to the lowest confined electron subband.Keywords
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