Extended Data Fig. 5: Hopping parameters and spontaneous degeneracy breaking.
From: Spontaneous broken-symmetry insulator and metals in tetralayer rhombohedral graphene
a, Illustration of the intralayer and interlayer tight-binding hopping terms of ABCA multilayer graphene used in this work. b, Layer resolved distribution of electrons and holes for charge neutral QAH, LAF, and flavor Fi, and F phases illustrating the layer polarization of the four spin-valley flavors (K ↑ , K′ ↑ , K ↓ , K′↓,). c, k-point mesh grid of the first Brillouin zone where the dense grid near two Dirac points, K and K’, is equivalent to 576 × 576 k points, and the coarse grid for the rest of the area is to 18 × 18 k points. We show electric field dependent variations on d band gap (Δgap), e total energy (Etot), f the sum of band (Eband) and Hartree (EH) energy, and g exchange energy (EX) for each phase.
