Spin currents in a coherent exciton gas
A.A. High, A.T. Hammack, J.R. Leonard, Sen Yang, L.V. Butov, T., Ostatnicky, M. Vladimirova, A.V. Kavokin, T.C.H. Liew, K.L. Campman, and A.C., Gossard
TL;DR
This paper reports the observation of spin currents and textures in a coherent exciton gas, demonstrating how magnetic fields influence polarization patterns and spin trajectories.
Contribution
It presents novel experimental evidence of spin phenomena in a coherent exciton gas and how magnetic fields modify spin textures and polarization patterns.
Findings
Magnetic fields bend spin current trajectories.
Polarization patterns transform under magnetic influence.
Observation of helical to spiral and four-leaf to bell-like polarization patterns.
Abstract
Spin currents and spin textures are observed in a coherent gas of indirect excitons. Applied magnetic fields bend the spin current trajectories and transform patterns of linear polarization from helical to spiral and patterns of circular polarization from four-leaf to bell-like-with-inversion.
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