Trion Valley Polarization Dynamics in Electrically-gated Monolayer Molybdenum Ditelluride

Qiyao Zhang; Qiyao Zhang; Hao Sun; Hao Sun; Jiacheng Tang; Jiacheng Tang; Zhen Wang; Zhen Wang; Xingcan Dai; Cun-Zheng Ning; Cun-Zheng Ning; Cun-Zheng Ning

doi:10.1364/CLEO_QELS.2020.FTh3B.7

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2020),
paper FTh3B.7
•https://doi.org/10.1364/CLEO_QELS.2020.FTh3B.7

Trion Valley Polarization Dynamics in Electrically-gated Monolayer Molybdenum Ditelluride

Qiyao Zhang, Hao Sun, Jiacheng Tang, Zhen Wang, Xingcan Dai, and Cun-Zheng Ning

CLEO: QELS_Fundamental Science 2020

Washington, DC United States
10–15 May 2020
ISBN: 978-1-943580-76-7

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Ultrafast Spectroscopy of Topological Matter (FTh3B)

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Q. Zhang, H. Sun, J. Tang, Z. Wang, X. Dai, and C. Ning, "Trion Valley Polarization Dynamics in Electrically-gated Monolayer Molybdenum Ditelluride," in Conference on Lasers and Electro-Optics, OSA Technical Digest (Optica Publishing Group, 2020), paper FTh3B.7.

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Abstract

We investigated spin-valley dynamics of excitons and trions in electrically-gated monolayer MoTe2 using helicity-resolved quasi-resonant pump-probe spectroscopy. Trion valley polarization was observed for the first time in MoTe2, with initial polarization degree up to 60%.

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