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Showing 1–16 of 16 results
Advanced filters: Author: Yihang Zeng Clear advanced filters

  • An optical readout technique for the chemical potential of an arbitrary two-dimensional material is realized using a monolayer transition metal dichalcogenide semiconductor sensor whose optical response sharply depends on the chemical potential.

    • Zhengchao Xia
    • Yihang Zeng
    • Kin Fai Mak
    Research
    Nature Photonics
    Volume: 18, P: 344-349

  • 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

  • The broken-symmetry edge states that are the hallmark of the quantum Hall effect in graphene have eluded spatial measurements. Here, the authors spatially map the quantum Hall broken-symmetry edge states using atomic force microscopy and show a gapped ground state proceeding from the bulk through to the quantum Hall edge boundary.

    • Sungmin Kim
    • Johannes Schwenk
    • Joseph A. Stroscio
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-11

  • Rhombohedral hexalayer graphene aligned with hexagonal boron nitride has joined the growing family of systems capable of hosting fractional Chern insulators. Its fractional Chern insulator state at filling factor ν = 2/3 is tunable via both an electric displacement field and magnetic field, revealing rich topological phase transitions and intriguing details in the topological order.

    • Yihang Zeng
    News & Views
    Nature Materials
    Volume: 24, P: 985-986

  • 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

  • Transport evidence of a fractional quantum spin Hall insulator is reported in 2.1°-twisted bilayer MoTe2, which supports spin-Sz conservation and flat spin-contrasting Chern bands.

    • Kaifei Kang
    • Bowen Shen
    • Kin Fai Mak
    Research
    Nature
    Volume: 628, P: 522-526

  • The realization of strongly correlated bosons in a solid-state lattice is challenging. Here, the authors trap interlayer excitons in an angle-aligned WS2/bilayer WSe2/WS2 multilayer moiré lattice and observe correlated insulating states.

    • Yihang Zeng
    • Zhengchao Xia
    • Kin Fai Mak
    Research
    Nature Materials
    Volume: 22, P: 175-179

  • An electromechanical response to an out-of-plane electric field in van der Waals heterostructures enables direct visualization of moiré superlattices using piezoresponse force microscopy.

    • Leo J. McGilly
    • Alexander Kerelsky
    • Abhay N. Pasupathy
    Research
    Nature Nanotechnology
    Volume: 15, P: 580-584

  • In an inter-laboratory study, the authors compare the accuracy and performance of three optical density calibration protocols (colloidal silica, serial dilution of silica microspheres, and colony-forming unit (CFU) assay). They demonstrate that serial dilution of silica microspheres is the best of these tested protocols, allowing precise and robust calibration that is easily assessed for quality control and can also evaluate the effective linear range of an instrument.

    • Jacob Beal
    • Natalie G. Farny
    • Jiajie Zhou
    ResearchOpen Access
    Communications Biology
    Volume: 3, P: 1-29