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Showing 1–5 of 5 results
Advanced filters: Author: Subhajit Sinha Clear advanced filters

  • Spontaneous symmetry breaking of flat bands in twisted graphene systems may lead to anomalous Hall effect with a precursor state which has not been observed. Here, the authors probe this precursor state by observing bulk valley current and large nonlocal voltage several micrometers away from the charge current path in twisted double bilayer graphene.

    • Subhajit Sinha
    • Pratap Chandra Adak
    • Mandar M. Deshmukh
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-7

  • Moiré superlattices offer a rich platform fort the study of correlated and topological phases. Here, by using low-temperature magneto-transport measurements, the authors demonstrate electric-field induced switching between Chern states in twisted double-layer graphene in the Hofstadter regime.

    • Pratap Chandra Adak
    • Subhajit Sinha
    • Mandar M. Deshmukh
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8

  • Moiré materials are a versatile and tunable platform that offers a wide variety of lattice constants, energy scales and symmetries, leading to a rich interplay of electron correlations and topology. This Review summarizes recent breakthroughs in topological and Berry physics in moiré materials.

    • Pratap Chandra Adak
    • Subhajit Sinha
    • Mandar M. Deshmukh
    Reviews
    Nature Reviews Materials
    Volume: 9, P: 481-498