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Showing 1–7 of 7 results
Advanced filters: Author: Patrick Knüppel Clear advanced filters

  • Tunable moiré WSe2 bilayers realize Hubbard-model physics, exhibiting antiferromagnetism, strange metals and superconducting domes, offering a controllable platform to study high-transition-temperature superconductivity.

    • Yiyu Xia
    • Zhongdong Han
    • Jie Shan
    ResearchOpen Access
    Nature
    P: 1-7

  • Twisted transition metal dichalcogenide bilayers exhibit several emerging physical properties, but the connection to the underlying band structure singularities remains difficult to determine experimentally. Here, the authors characterize the influence of an electrically tunable van Hove singularity in twisted bilayer WSe2 on its ferromagnetic and topological phases.

    • Patrick Knüppel
    • Jiacheng Zhu
    • Kin Fai Mak
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • Kondo physics has been observed in moiré bilayers, but the expected magnetic transitions have not been reported. Now, a metal–insulator transition with ferromagnetic order that develops at nearly the same time is reported in a moiré bilayer.

    • Wenjin Zhao
    • Bowen Shen
    • Kin Fai Mak
    Research
    Nature Physics
    Volume: 20, P: 1772-1777

  • The Haldane model is a paradigmatic example of topological behaviour but has not previously been implemented in condensed-matter experiments. Now a moiré bilayer is shown to realize this model with the accompanying quantized transport response.

    • Wenjin Zhao
    • Kaifei Kang
    • Kin Fai Mak
    Research
    Nature Physics
    Volume: 20, P: 275-280

  • Thermodynamic evidence of both integer and fractional Chern insulators at zero magnetic field is reported in small-angle twisted bilayer MoTe2 by combining the local electronic compressibility and magneto-optical measurements.

    • Yihang Zeng
    • Zhengchao Xia
    • Jie Shan
    Research
    Nature
    Volume: 622, P: 69-73

  • Nonlinear optical measurements in a two-dimensional electron system embedded in an optical cavity show enhanced polariton–polariton interactions in the fractional quantum Hall regime.

    • Patrick Knüppel
    • Sylvain Ravets
    • Atac Imamoglu
    Research
    Nature
    Volume: 572, P: 91-94