A DMRG study of the extended Hubbard model on the triangular lattice

ORAL

Abstract

Moire systems provide a rich platform for studies of strong correlation physics. A recent experiment with transition metal dichalcogenide (TMD) bilayer realized an experimental simulation of the extended Hubbard model on a triangular lattice[1]. Inspired by this experiment, we explore the charge order phenomena of the extended Hubbard model on the triangular lattice using the density matrix renormalization group (DMRG).

[1] Chenhao Jin, Zui Tao, Tingxin Li, Yang Xu, Yanhao Tang, Jiacheng Zhu, Song Liu, Kenji Watanabe, Takashi Taniguchi, James C. Hone, Liang Fu, Jie Shan, and Kin Fai Mak, “Stripe phases in WSe2/WS2 moire superlattices,” (2020), arXiv:2007.12068 [cond-mat.mes-hall]

*E.-A.K. was supported by the National Science Foundation (Platform for the Accelerated Realization, Analysis, and Discovery of Interface Materials (PARADIM)) under Cooperative Agreement no. DMR-1539918. Y.Z was supported by the Cornell Fellowship.

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Presenters

  • Yiqing Zhou

    • Cornell University

Authors

  • Yiqing Zhou

    • Cornell University

  • Donna Sheng

    • Physics and Astronomy, California State University, Northridge
    • California State University Northridge

  • Eun-Ah Kim

    • Cornell University
    • Department of Physics, Cornell University