High room temperature optical polarization due to spin-valley coupling in monolayer WS2
We prepare single-layer WS2 films such that the photoluminescence is from either the neutral exciton or the negatively charged trion. While the neutral exciton emission has zero polarization at room temperature, we observe a room temperature optical polarization in excess of 40% for the trion. Using...
Main Authors: | , , , , , , |
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Format: | Article |
Language: | English |
Published: |
AIP Publishing LLC
2016-05-01
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Series: | AIP Advances |
Online Access: | http://dx.doi.org/10.1063/1.4942797 |