Abstract
The detailed studies of two-dimensional hole gas in an asymmetric 22 nm wide GaAs/Ga1−xAlxAs quantum well in polarization-resolved photoluminescence in high magnetic fields (up to B = 20 T) and at low temperatures (down to T = 50 mK) are reported. Additionally to the previously detected in symmetric quantum wells dominant emission channels of various free and acceptor-bound trions, the high-energy hole cyclotron replicas of the bound states are now also observed, corresponding to a the exciton-cyclotron resonance. The identification of transitions in the reach spectra was performed by the analysis of optical selection rules and comparison of the experimental spectra with numerical calculations of the real structure.
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