Spin relaxation of indirect excitons in asymmetric coupled quantum wells
| Autor: | François Dubin, Maria Vladimirova, François Chiaruttini, Chahine Abbas, Denis Scalbert, Aristide Lemaître, Steeve Cronenberger |
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| Přispěvatelé: | Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Optique des états collectifs et du spin (OECS), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut des Nanosciences de Paris (INSP), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), ANR-15-CE30-0020,OBELIX,Vers un liquide quantique d'excitons indirects(2015) |
| Rok vydání: | 2018 |
| Předmět: |
Condensed Matter::Quantum Gases
Photoluminescence Materials science Condensed matter physics Spin dynamics Condensed Matter::Other Exciton 02 engineering and technology Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Condensed Matter::Materials Science [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other] 0103 physical sciences General Materials Science Electrical and Electronic Engineering 010306 general physics 0210 nano-technology Spectroscopy Spin relaxation Quantum well |
| Zdroj: | Superlattices and Microstructures Superlattices and Microstructures, Elsevier, 2018, 122, pp.643. ⟨10.1016/j.spmi.2018.06.015⟩ |
| ISSN: | 0749-6036 1096-3677 |
| Popis: | Density and spin dynamics of indirect excitons in asymmetric GaAs/AlGaAs coupled quantum wells is studied by time-resolved photoluminescence. Under electric bias applied in the growth direction the lifetime of indirect excitons formed by an electron in a wide and hole in a narrow quantum well reaches 12 ns, while the circular polarisation lifetime is about 5 ns. The structure is suited for further studies of dark indirect excitons by time-resolved pump-probe spectroscopy. |
| Databáze: | OpenAIRE |
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