• Technical Conference: 

    15 – 20 May 2022

  • Exhibition: 

    17 – 19 May 2022

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Poster

Electrical Control of Ultra-Long Spin-Valley Polarization of Trions in Monolayer Molybdenum Ditelluride (JW1A.41)

Presenter: Qiyao Zhang, Tsinghua University

We systematically investigated the electrically-tunable valley polarization mechanism in monolayer MoTe2 by helicity-resolved photoluminescence and ultrafast pump-probe spectroscopy. We observed an ultra-long trion valley lifetime of over 600 ps, the longest for a 2D material.

Authors:Qiyao Zhang, Tsinghua University / Hao Sun, Tsinghua University / Jiacheng Tang, Tsinghua University / Xingcan Dai, Tsinghua University / Zhen Wang, Tsinghua University / Cun-Zheng Ning, Tsinghua University


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