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Spin transport of excitons

By J.R. Leonard, Y.Y. Kuznetsova, Sen Yang, L.V. Butov, T. Ostatnicky, A. Kavokin and A.C. Gossard

Abstract

We report on observation of the spin transport of spatially indirect excitons in GaAs/AlGaAs coupled quantum wells (CQW). Exciton spin transport over substantial distances, up to several micrometers in the present work, is achieved due to orders of magnitude enhancement of the exciton spin relaxation time in CQW with respect to conventional quantum wells

Topics: QC
Year: 2009
OAI identifier: oai:eprints.soton.ac.uk:149761
Provided by: e-Prints Soton

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