Field-tunable correlated states in H-stacked twisted MoS2.

Oral-In-person

Abstract

Twisted transition metal dichalcogenide bilayers offer a versatile platform for exploring strongly correlated states. Here, we study near H-stacked MoS2 bilayers that realize a multiorbital Hubbard model. The theoretically predicted ultra-flat moire bands at both the valence and conduction band edges strongly enhance electron correlation effects, observable in excitonic spectra. We study the evolution of these correlations under electric and magnetic fields, demonstrating their robustness and tunability arising from the system's unique layer, valley, and orbital degrees of freedom.

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Presenters

  • Xiaoxiao Yu

    • University of Texas at Austin

Authors

  • Xiaoxiao Yu

    • University of Texas at Austin

  • Zhida Liu

    • University of Texas at Austin

  • Hongtao Yan

    • University of Texas at Austin

  • Xiangcheng Liu

    • University of Texas at Austin

  • Xiaohui Liu

    • University of Texas at Austin

  • Kai Hao

    • University of Chicago

  • Kenji Watanabe

    • National Institute for Materials Science

  • Takashi Taniguchi

    • National Institute for Materials Science

  • Chih-Kang Shih

    • University of Texas at Austin

  • Keji Lai

    • University of Texas at Austin

  • Mit Naik

  • Xiaoqin Elaine Li

    • University of Texas at Austin