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Exciton transport by moving strain dots in GaAs quantum wells
Institution:1. Institute of Geology and Mineralogy, SB RAS, Novosibirsk, Russia;2. Novosibirsk State University, Novosibirsk, Russia;3. Siberian Physical–Technical Institute of Tomsk State University, Tomsk, Russia;4. National Physical Laboratory, Teddington TW11 0LW, UK;5. Institute of Monitoring of Climatic and Ecological Systems SB RAS, Tomsk, Russia;1. Graduate School of Information Science and Technology, Hokkaido University, North 14 West 9, Sapporo 060-0814, Japan;2. Research Center for Integrated Quantum Electronics (RCIQE), Hokkaido University, North 13 West 8, Sapporo 060-8628, Japan;3. Japan Science and Technology Agency–PRESTO, Kawaguchi, Saitama 332-0012, Japan;1. School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, PR China;2. Synergy Innovation Institute of GDUT, Heyuan 517000, Guangdong Province, PR China;3. Department of Physics, College of Physics and Electrical Engineering, Guangzhou University, Guangzhou 510006, PR China;1. Centre universitaire de Relizane, Département de sciences des matériaux, Bourmadia, 048000 Relizane, Algeria;2. Laboratoire de Caractérisation et Simulation des Composants et Circuits électroniques (CaSiCCe), ENPO (ex: ENSET-Oran), BP 1523 EL M’Naouer, Oran 31000, Algeria;3. Laboratoire de Microphysique et de Nanophysique (LaMiN), ENPO (ex: ENSET-Oran), BP 1523 EL M’Naouer, Oran 31000, Algeria;4. Modelling and Simulation in Materials Science Laboratory, Djillali Liabès University, Sidi-Bel-Abbès 22000, Algeria;5. Condensed Matter Physics Group, Department of Physics, Universidad del Norte, Barranquilla, Colombia
Abstract:Spatially resolved photoluminescence spectroscopy was employed to investigate the dynamic control of excitons in GaAs/AlGaAs double quantum wells within the confined and moving potentials formed by the interference of orthogonal surface acoustic waves. We demonstrate the unique ability of these dynamic strain dots to transport photogenerated indirect excitons over macroscopic distances.
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