Superconductivity emerges from a state with anomalous Hall effects in the flat Chern band of twisted bilayer MoTe2, providing the first reported coexistence with fractional quantum anomalous Hall effects.
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Anomalous Hall crystals have stiffness an order of magnitude smaller than Wigner crystals due to finite Chern number, triggering mechanical instability under deformations in rhombohedral pentalayer graphene models.
Mean-field theory on a quartic-dispersion Chern band for rhombohedral graphene yields a chiral topological superconductor that transitions to a trivial BEC at T=0; the composite-fermion version realizes a Moore-Read state.
Impurities in a flat Chern band induce a thermal crossover from fractional to integer Chern insulators via entropy-energy competition, supported by exact diagonalization in a toy model.
citing papers explorer
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Signatures of unconventional superconductivity near reentrant and fractional quantum anomalous Hall insulators
Superconductivity emerges from a state with anomalous Hall effects in the flat Chern band of twisted bilayer MoTe2, providing the first reported coexistence with fractional quantum anomalous Hall effects.
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Elastic Response and Instabilities of Anomalous Hall Crystals
Anomalous Hall crystals have stiffness an order of magnitude smaller than Wigner crystals due to finite Chern number, triggering mechanical instability under deformations in rhombohedral pentalayer graphene models.
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Chiral superconductivity from parent Chern band and its non-Abelian generalization
Mean-field theory on a quartic-dispersion Chern band for rhombohedral graphene yields a chiral topological superconductor that transitions to a trivial BEC at T=0; the composite-fermion version realizes a Moore-Read state.
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Impurity-induced thermal crossover in fractional Chern insulators
Impurities in a flat Chern band induce a thermal crossover from fractional to integer Chern insulators via entropy-energy competition, supported by exact diagonalization in a toy model.