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Observation of a programmable superlattice memory effect in monolayer TaIrTe<sub>4</sub>

ORAL

Abstract

Recently, the long-range superlattice has attracted great interest due to its potential to induce new topological and correlated phenomena, as observed in moiré materials. Achieving superlattice memory - a bistable control of the superlattice - offers a novel approach for encoding and manipulating a range of exotic quantum states for information storage and processing. In this talk, I will present our recent discovery of a surprising “superlattice memory” effect, observed through nonlinear transport in the intrinsic monolayer crystal TaIrTe4, unique for its topological bands and van Hove singularities.

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Publication: Tang, J., Ding, T.S., Chen, H. et al. Dual quantum spin Hall insulator by density-tuned correlations in TaIrTe4. Nature 628, 515–521 (2024).

Presenters

  • Jian Tang

    Boston College

Authors

  • Jian Tang

    Boston College

  • Siyuan Ding

    Boston College

  • Vsevolod Belosevich

    Boston College

  • Jiangxu Li

    University of Tennessee

  • Changjiang Yi

    Max Planck Institute for Chemical Physics of Solids

  • Tiema Qian

    University of California, Los Angeles

  • Shuhan Ding

    Massachusetts Institute of Technology

  • Nikolai Peshcherenko

    Max-Planck-Institute for Chemical Physics of Solids, Max Planck Institute for Chemical Physics of Solids

  • Kenji Watanabe

    National Institute for Materials Science, NIMS, Research Center for Functional Materials, National Institute for Materials Science, Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, Research Center for Functional Materials, National Institute of Material Science, Tsukuba, Japan, National Institute of Materials Science, Advanced Materials Laboratory, National Institute for Materials Science

  • Takashi Taniguchi

    National Institute for Materials Science, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, International Center for Materials Nanoarchitectonics, National Institute of Material Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science

  • Kenneth Stephen Burch

    Boston College

  • Claudia Felser

    Max Planck Institute for Chemical Physics of Solids

  • Yao Wang

    Clemson University, Emory University

  • Ni Ni

    University of California, Los Angeles

  • Yang Zhang

    University of Tennessee

  • Su-Yang Xu

    Harvard University

  • Qiong Ma

    Boston College