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Mixing of excitonic states containing light and heavy holes in an isolated GaAs/AlGaAs quantum well in a magnetic field |
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| Authors: | V B Timofeev M Bayer A Forchel M Potemski |
| Institution: | 1. Institute of Solid-State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow Region, Russia 2. Technische Physik, Universit?t Würzburg Am Hubland, D-97074, Würzburg, Germany 3. High Magnetic Field Laboratory, MPI/CNRS Grenoble BP-166, 38042, Grenoble-Cedex 9, France |
| Abstract: | The Zeeman splitting of the ground states 1s(hh) and 1s(lh) of excitons with heavy and light holes, respectively, in a 15-nm isolated Al0.3Ga0.7As/GaAs quantum well in magnetic fields of up to 20 T is investigated according to the photoluminescence excitation spectra in the Faraday geometry (σ+− σ− components). The observed anomalous pattern of nonlinear Zeeman splitting and the nonmonotonic behavior of the effective hole g factor are interpreted in terms of the strong mixing of the magnetoexcitonic states containing light and heavy holes. Pis'ma Zh. éksp. Teor. Fiz. 64, No. 1, 52–56 (10 July 1996) |
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