Exciton transport by surface acoustic waves |
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| Authors: | J Rudolph R Hey PV Santos |
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| Institution: | aPaul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany |
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| Abstract: | Long-range acoustic transport of excitons in GaAs quantum wells (QWs) is demonstrated. The mobile strain field of a surface acoustic wave creates a dynamic lateral type I modulation of the conduction and valence bands in a double-quantum-well (DQW) structure. This mobile potential modulation transports long-living indirect excitons in the DQW over several hundreds of μm. |
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| Keywords: | Acoustic transport Surface acoustic wave Exciton |
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