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Showing 1–8 of 8 results
Advanced filters: Author: William Holtzmann Clear advanced filters

  • Twisted bilayer (tb) MoTe2 is an ideal platform for investigating the fractional quantum anomalous Hall effect but issues related to air sensitivity make the study of its electronic structure experimentally challenging. As a solution, the authors prepare hBN encapsulated tb-MoTe2 and using micro-angle resolved photoemission spectroscopy determine the band structure. Furthermore, through in-situ alkali metal deposition, they obtain evidence indicating a direct band gap.

    • Cheng Chen
    • William Holtzmann
    • Yulin Chen
    ResearchOpen Access
    Communications Physics
    Volume: 9, P: 1-7

  • In analogy with quantum Hall systems, it may be possible to find non-abelian anyons in the higher bands of Chern insulators. Now, the phase diagram of the second moiré band of twisted MoTe2 is explored, laying the groundwork for such investigations.

    • Heonjoon Park
    • Jiaqi Cai
    • Xiaodong Xu
    Research
    Nature Physics
    Volume: 21, P: 549-555

  • Using the unique valley properties of a twisted MoTe2 bilayer, measurements of the degree of circular polarization of trion photoluminescence reveal optical signatures of a zero-field composite Fermi liquid.

    • Eric Anderson
    • Jiaqi Cai
    • Xiaodong Xu
    Research
    Nature
    Volume: 635, P: 590-595

  • The authors report on the emergence of intercell moiré exciton complexes where, in H-stacked WS2/WSe2 heterobilayers, the exciton’s hole from the WSe2 layer is surrounded by its bound electron’s wavefunction distributed among three adjacent moiré traps in the WS2 layer exhibiting an out-of-plane dipole and in-plane quadrupole.

    • Xi Wang
    • Xiaowei Zhang
    • Xiaodong Xu
    Research
    Nature Materials
    Volume: 22, P: 599-604

  • Transport measurements in twisted bilayer MoTe2 reveal quantized Hall resistance plateaus and composite Fermi liquid-like behaviour under zero magnetic field, constituting a direct observation of integer and fractional quantum anomalous Hall effects.

    • Heonjoon Park
    • Jiaqi Cai
    • Xiaodong Xu
    Research
    Nature
    Volume: 622, P: 74-79