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Luminescence of Excitons in Slightly Asymmetric Double Quantum Wells
Akimov A.V.1, Moskalenko E.S.1, Zhmodikov A.L.1, Mazurenko D.A.1, Kaplyanskii A.A.1, Challis L.J.2, Cheng T.S.2, Foxon C.T.2
1A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, St. Petersburg, Russia
2Physics Department, Nottingham University, University Park NG7 2RD, Nottingham, UK
Поступила в редакцию: 26 ноября 1996 г.
Выставление онлайн: 19 марта 1997 г.

We report the first studies of exciton luminescence spectra from asymmetric double quantum wells (DQWs) of very similar width. The DQWs were of GaAs/AlGaAs and the differences in widths of the coupled wells were one or two monolayers. The coupled direct and indirect exciton states anticross with a resonance splitting of 1.33 meV. An additional luminescence line appearing at low temperatures is identified as a localized indirect exciton.
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