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Showing 1–6 of 6 results
Advanced filters: Author: Dumitru Călugăru Clear advanced filters

  • This study of magic-angle twisted trilayer graphene moiré superconductors using scanning tunnelling microscopy and spectroscopy identifies two energy gaps that develop from many-body resonance in this highly tunable class of materials.

    • Hyunjin Kim
    • Gautam Rai
    • Stevan Nadj-Perge
    Research
    Nature
    P: 1-7

  • A new class of moiré materials based on monolayers with triangular lattices and low-energy states at the M points of the Brillouin zone is introduced, demonstrating emergent momentum-space non-symmorphic symmetries, a kagome plane-wave lattice structure, and potential quasi-one-dimensionality.

    • Dumitru Călugăru
    • Yi Jiang
    • B. Andrei Bernevig
    ResearchOpen Access
    Nature
    Volume: 643, P: 376-381

  • A proposed theoretical explanation for the electronic behaviour of moiré graphene is the coexistence of light and heavy electrons. Now local thermoelectric measurements hint that this model could be accurate.

    • Sergi Batlle Porro
    • Dumitru Călugăru
    • Frank H. L. Koppens
    Research
    Nature Physics
    Volume: 21, P: 1934-1941

  • A general theoretical technique is introduced to identify materials that host flat bands. Applying topological quantum chemistry provides the generating bases for these flat bands in all space groups.

    • Dumitru Călugăru
    • Aaron Chew
    • B. Andrei Bernevig
    Research
    Nature Physics
    Volume: 18, P: 185-189

  • 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