Reduced binding energy of the symmetric heavy-hole exciton in GaAs/AlxGa1−xAs symmetric coupled double quantum wells
| Autor: | K. Johannessen, Bo Monemar, Qing Xiang Zhao, B. O. Fimland, T. Westgaard |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Physics
chemistry.chemical_classification X-ray absorption spectroscopy Photoluminescence Condensed matter physics Condensed Matter::Other Exciton Binding energy Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Molecular physics Condensed Matter::Materials Science chemistry Excited state Double quantum Inorganic compound Quantum well |
| Zdroj: | Physical Review B. 46:12853-12856 |
| ISSN: | 1095-3795 0163-1829 |
| DOI: | 10.1103/physrevb.46.12853 |
| Popis: | Discrete peaks, which are identibed as the excited 2s state of the n=1 symmetric heavy-hole exciton, are observed in GaAs/Al x Ga 1-x As symmetric coupled double-quantum-well (SCDQW) samples by combining unpolarized and polarized photoluminescence-excitation measurements. The 1s-2s splitting of symmetric heavy-hole excitons is accurately determined in the SCDQW's. The 1s-2s splitting is significantly reduced compared to uncoupled quantum wells |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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