Interlayer attraction in bilayer graphene-Mott insulator heterostructures stabilizes topological electron crystals with triangular, honeycomb, and kagome geometries via self-consistent Hartree-Fock calculations.
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2025 3verdicts
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A GW+RPA perturbation framework built on Hartree-Fock is applied to hBN-aligned rhombohedral pentalayer graphene and magic-angle twisted bilayer graphene, producing phase diagrams and spectra that match experiments and predicting a nematic metal ground state at charge neutrality in MATBG.
Rhombohedral graphene multilayers show an isospin cascade of electron crystal phases with non-zero Chern numbers and nearly degenerate topological states hosting extended quantum anomalous Hall effect as carrier density rises.
citing papers explorer
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Emergence of Topological Electron Crystals in Bilayer Graphene--Mott Insulator Heterostructures
Interlayer attraction in bilayer graphene-Mott insulator heterostructures stabilizes topological electron crystals with triangular, honeycomb, and kagome geometries via self-consistent Hartree-Fock calculations.
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General Many-Body Perturbation Framework for Moir\'e Systems
A GW+RPA perturbation framework built on Hartree-Fock is applied to hBN-aligned rhombohedral pentalayer graphene and magic-angle twisted bilayer graphene, producing phase diagrams and spectra that match experiments and predicting a nematic metal ground state at charge neutrality in MATBG.
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Various electronic crystal phases in rhombohedral graphene multilayers
Rhombohedral graphene multilayers show an isospin cascade of electron crystal phases with non-zero Chern numbers and nearly degenerate topological states hosting extended quantum anomalous Hall effect as carrier density rises.