Spin transport of indirect excitons in GaAs coupled quantum wells
J.R. Leonard, Sen Yang, L.V. Butov, and A.C. Gossard
TL;DR
This paper reports the observation of spin transport of indirect excitons in GaAs/AlGaAs coupled quantum wells, highlighting the role of long spin relaxation times and exciton lifetimes in enabling spin transport.
Contribution
It demonstrates the experimental measurement of spin transport in indirect excitons, providing insights into their spin dynamics in coupled quantum well structures.
Findings
Spin transport observed via circular polarization measurements
Long spin relaxation times enable exciton spin transport
Indirect excitons have long lifetimes facilitating spin propagation
Abstract
Spin transport of indirect excitons in GaAs/AlGaAs coupled quantum wells was observed by measuring the spatially resolved circular polarization of the exciton emission. The exciton spin transport originates from the long spin relaxation time and long lifetime of the indirect excitons.
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Taxonomy
TopicsQuantum and electron transport phenomena · Semiconductor Quantum Structures and Devices · Advancements in Semiconductor Devices and Circuit Design