Fig. 2: Quantum anomalous Hall crystal at \(\nu=\frac{2}{3}\) in realistic twisted double bilayer graphene with twist angle θ =  1.35∘ and a vertical potential bias of U =  60 meV. | Nature Communications

Fig. 2: Quantum anomalous Hall crystal at \(\nu=\frac{2}{3}\) in realistic twisted double bilayer graphene with twist angle θ =  1.35∘ and a vertical potential bias of U =  60 meV.

From: Quantum anomalous Hall crystals in moiré bands with higher Chern number

Fig. 2: Quantum anomalous Hall crystal at $$\nu=\frac{2}{3}$$ ν = 2 3 in realistic twisted double bilayer graphene with twist angle θ =  1.35∘ and a vertical potential bias of U =  60 meV.

a Many-body energy spectrum for Ns  =  27 sites showing a threefold degenerate ground state with average many-body Chern number \({{{{\mathcal{C}}}}}=1\). The parent single-particle band has a Chern number C  =  2. b Hole-entanglement spectrum, where the number of states below the red line is 378 and matches exactly the number of allowed quasiparticle excitations in a charge density wave. c Structure factor in the moiré Brillouin zone. d Pair-correlation function in the considered finite system.

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