Photocurrent imaging of charge density wave transitions in ultrathin 1T-TaS2

ORAL

Abstract

We use scanning photocurrent microscopy to image the nearly commensurate/commensurate charge density wave transition in 1T-TaS2. Ultrathin flakes are fabricated by mechanical exfoliation and protected from oxidation with h-BN capping in an inert atmosphere. We study the effect of dimensionality and in-plane current on the first-order phase transition with spatial resolution within the diffraction limit.

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Presenters

  • Tarun Patel

    IQC, Univ of Waterloo

Authors

  • Tarun Patel

    IQC, Univ of Waterloo

  • Bowen Yang

    IQC, Univ of Waterloo

  • Hyun Ho Kim

    Univ of Waterloo, IQC, Univ of Waterloo

  • Yu Liu

    Institute of Solid State Physics, Chinese Academy of Sciences

  • Wenjian Lu

    Institute of Solid State Physics, 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