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- W1985705172 abstract "We study the theory of intrinsic photoluminescence of two-dimensional electron systems in the vicinity of the $nu=1$ quantum Hall state. We focus predominantly on the recombination of a band of initial ``excitonic states'' that are the low-lying energy states of our model at $nu=1$. It is shown that the recombination of excitonic states can account for recent observations of the polarization-resolved spectra of a high-mobility GaAs quantum well. The asymmetric broadening of the spectral line in the $sigma_-$ polarization is explained to be the result of the ``shake-up'' of spin-waves upon radiative recombination of excitonic states. We derive line shapes for the recombination of excitonic states in the presence of long-range disorder that compare favourably with the experimental observations. We also discuss the stabilities and recombination spectra of other (``charged'') initial states of our model. An additional high-energy line observed in experiment is shown to be consistent with the recombination of a positively-charged state. The recombination spectrum of a negatively-charged initial state, predicted by our model but not observed in the present experiments, is shown to provide a direct measure of the formation energy of the smallest ``charged spin-texture'' of the $nu=1$ state." @default.
- W1985705172 created "2016-06-24" @default.
- W1985705172 creator A5029624789 @default.
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- W1985705172 date "1997-01-15" @default.
- W1985705172 modified "2023-09-24" @default.
- W1985705172 title "Theory of photoluminescence of the ν=1 quantum Hall state:Excitons, spin waves, and spin textures" @default.
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- W1985705172 doi "https://doi.org/10.1103/physrevb.55.2436" @default.
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