Interwell excitons in GaAs superlattices
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D. Birkedal; K. El Sayed; G. Sanders; C. Spiegelberg; V.G. Lyssenko; C. Stanton;
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Article
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1997
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Elsevier Science
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English
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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 C