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Showing 1–7 of 7 results
Advanced filters: Author: Myungchul Oh Clear advanced filters

  • Strong electron–electron interactions in magic-angle twisted bilayer graphene can fundamentally change the topology of the system’s flat bands, producing a hierarchy of strongly correlated topological insulators in modest magnetic fields.

    • Kevin P. Nuckolls
    • Myungchul Oh
    • Ali Yazdani
    Research
    Nature
    Volume: 588, P: 610-615

  • High-resolution STM/STS visualizes the fractionalization of flat moiré bands into discrete Hofstadter subbands in moiré graphene near the predicted second magic angle, and experimentally establishes several fundamental properties of the fractal Hofstadter energy spectrum.

    • Kevin P. Nuckolls
    • Michael G. Scheer
    • Ali Yazdani
    Research
    Nature
    Volume: 639, P: 60-66

  • High-resolution scanning tunnelling microscopy is used to observe the quantum textures of the many-body wavefunctions of the correlated insulating, pseudogap and superconducting phases in magic-angle graphene.

    • Kevin P. Nuckolls
    • Ryan L. Lee
    • Ali Yazdani
    Research
    Nature
    Volume: 620, P: 525-532

  • A study combining tunnelling and Andreev reflection spectroscopy with a scanning tunnelling microscope provides evidence for unconventional superconductivity in magic-angle twisted bilayer graphene.

    • Myungchul Oh
    • Kevin P. Nuckolls
    • Ali Yazdani
    Research
    Nature
    Volume: 600, P: 240-245

  • Angle-resolved photoemission spectroscopy of superconducting magic-angle twisted bilayer graphene reveals flat-band replicas that are indicative of strong electron–phonon coupling; these replicas are absent in non-superconducting twisted bilayer graphene.

    • Cheng Chen
    • Kevin P. Nuckolls
    • Yulin Chen
    ResearchOpen Access
    Nature
    Volume: 636, P: 342-347