Spin transport of excitons.
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.
Leonard
J R
JR
Department of Physics, University of California at San Diego, La Jolla, California 92093-0319, USA. jleonard@physics.ucsd.edu
Kuznetsova
Y Y
YY
Yang
Sen
S
Butov
L V
LV
Ostatnický
T
T
Kavokin
A
A
Gossard
A C
AC
D001152:Arsenicals / Q000737:chemistry*; D003198:Computer Simulation; D004579:Electron Transport; D005708:Gallium / Q000737:chemistry*; D008027:Light; D008956:Models, Chemical; D011789:Quantum Theory
D001152:Arsenicals; C043055:gallium arsenide; D005708:Gallium