Skip to main content
Article thumbnail
Location of Repository

Spin transport of excitons

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


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:
Provided by: e-Prints Soton

Suggested articles


  1. Analysis of the exciton-exciton interaction in semiconductor quantum wells. doi
  2. Carrier relaxation and luminescence polarization in quantum wells. doi
  3. Challenges for semiconductor spintronics. doi
  4. (2008). Control of Exciton Fluxes in an Excitonic Integrated Circuit. Science doi
  5. (1971). Current-induced spin orientation of electrons in semiconductors. doi
  6. (2006). Drift mobility of long-living excitons in coupled GaAs quantum wells. doi
  7. (2009). Electric-field effects on exciton lifetimes in doi
  8. (1995). Electric-field-induced exciton transport in coupled quantum well structures. doi
  9. (2007). Electronic measurement and control of spin transport in silicon. Nature doi
  10. Exchange interaction and polariton effects in quantum-well excitons. doi
  11. Exciton dynamics in GaAs quantum wells under resonant excitation. doi
  12. Exciton spin dynamics in quantum wells. doi
  13. (2000). Interwell excitons in GaAs/AlGaAs double quantum wells and their collective properties. doi
  14. (1999). Lateral drag of spin coherence in gallium arsenide.
  15. (2009). LocalizationDelocalization Transition of Indirect Excitons in Lateral Electrostatic Lattices. doi
  16. (2005). Observation of spin Coulomb drag in a twodimensional electron gas. Nature doi
  17. (2006). Optical Measurement and Control of Spin Diffusion in n-Doped GaAs Quantum Wells. doi
  18. (2005). Optical spectroscopy of semiconductor nanostructures;
  19. (2006). Origin of the inner ring in photoluminescence patterns of quantum well excitons. doi
  20. Photoluminescence kinetics of indirect excitons in GaAs/AlxGa1-xAs coupled quantum wells. doi
  21. (1971). Possibility of orienting electron spins with current.
  22. (2005). Spatial imaging of the spin Hall effect and currentinduced polarization in two-dimensional electron gases. doi
  23. (2001). Spin diffusion in doped semiconductors: The role of Coulomb interactions. doi
  24. (1997). Spin diffusion of optically oriented electrons and photon entrainment in n-gallium arsenide. doi
  25. (1999). Spin Hall Effect. doi
  26. (1976). Spin injection into semiconductors.
  27. (1971). Spin orientation of electrons associated with the interband absorption of light in semiconductors.
  28. (1986). Spin relaxation of twodimensional electrons in noncentrosymmetric semiconductors.
  29. (2007). Spin-diffusion lengths in metals and alloys, and spin-flipping at metal/metal interfaces: an experimentalist’s critical review. doi
  30. (2009). Supplementary online materials. doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.