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Interwell excitons in GaAs superlattices |
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| Authors: | D Birkedal K El Sayed G Sanders C Spiegelberg VG Lyssenko C Stanton JM Hvam VB Timofeev M Bayer |
| Institution: | aMikroelektronik Centret, The Technical University of Denmark, Lyngby, DK-2800, Denmark;bInstitute of Solid State Physics, Russian Academy of Sciences, Chenogolovka, 142432, Moscow district, Russia;cTechnische Physik, Universität Würzburg, Am Hubland, Würzburg, D-97074, Germany |
| Abstract: | The formation of spatially indirect excitons in superlattices with narrow minibands is investigated experimentally. The interwell exciton is similar to the first Wannier–Stark localized exciton of an electrically biased superlattice. However, in the present case the localization is mediated by the Coulomb interaction of the electron and the hole without external fields. |
| Keywords: | GaAs/AlGaAs superlattices magneto excitons |
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