Fig. 8 | npj Quantum Materials

Fig. 8

From: Superconductivity from valley fluctuations and approximate SO(4) symmetry in a weak coupling theory of twisted bilayer graphene

Fig. 8

Band structure (left panel) and the equal-filling Fermi surfaces (right panel) in the Moiré Brillouin zone around the K valley in the presence of vertical electric field, for (a) weak field and (b) intermediate field. The f = −1/2 filling level is marked out as dashed lines in the band structure plot and as thick lines in the Fermi surface contour

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