Magneto-optical determination of exciton binding energy in GaAs-quantum wells
- 15 August 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 30 (4), 2253-2256
- https://doi.org/10.1103/physrevb.30.2253
Abstract
The binding energy of the exciton in GaAs quantum wells confined within Ga-Al-As is determined by the observation of the different behavior of the ground state and the excited states of excitonic transitions of different subbands with excitation spectroscopy in magnetic fields. An increase in the binding energy with decreasing well thickness is found with values higher than theoretically expected. This discrepancy is explained by an experimentally determined higher reduced mass than that used in the theoretical calculations.Keywords
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