Fig. 3
From: Strain-enhanced two-photon absorption in twisted bilayer graphene
Band structure for the ξ = − 1 valley of twisted bilayer graphene at twist angle θ = 1.05° with uniaxial strain (a) s = 0, (b) s = 0.1%, (c) s = 0.3%, (d) s = 0.6% applied along the direction \(\phi\) = 0°. The red (green) arrows stand for interband transition (intraband transition).
