Dimensionality-tuned semimetal-to-metal transition in 1Td-MoTe2

ORAL

Abstract

We study magnetotransport in 1Td-MoTe2 ultrathin flakes at low temperature. The samples are fabricated by mechanical exfoliation and capped with hBN to protect from oxidation. In contrast to bulk crystals, which show large magnetoresistance due to near-perfect electron-hole compensation, we find greater charge imbalance with reduced thickness. The results may explain stabilization of the orthorhombic phase in ultrathin samples as found by He et al.

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Presenters

  • Shazhou Zhong

    University of Waterloo

Authors

  • Shazhou Zhong

    University of Waterloo

  • Archana Tiwari

    University of Waterloo

  • George Nichols

    University of Waterloo, Institute for Quantum Computing

  • Fangchu Chen

    Chinese Academy of Sciences

  • Xuan Luo

    Chinese Academy of Sciences

  • Y.P. Sun

    Chinese Academy of Sciences, Institute of Solid State Physics, Chinese Academy of Sciences

  • Adam Tsen

    University of Waterloo, Chemistry, University of Waterloo, Univ of Waterloo, IQC, Univ of Waterloo