Extended Data Fig. 5: Dependence of the momentum separation between the remote bands and momentum position of the vHS on the interlayer tunneling parameters ωAB and α.
From: Evolution of the flat band and the role of lattice relaxations in twisted bilayer graphene
a, Experimental energy contour at -0.5 eV for the 2.22∘ tBLG. The red arrow indicates the momentum separation between remote bands p1 and p2. b-d, Calculated energy contours using ωAB of 80, 120 and 160 meV, respectively. The energy separation gradually increases with increasing of ωAB, from which the calculated result at ωAB = 120 meV agrees well with the experiment result. e, Experimental energy contour at -0.1 eV for the 2.22∘ tBLG. f-h, Calculated energy contours using α of 0.5, 0.8 and 1.0, respectively. The position of the vHS shifts away from the moiré Brillouin zone border (gray dashed hexagons), from which the calculated results at α = 0.8 agrees well with the experimental results.
