Fig. 3: Spin and valley polarization dominant states.
From: Abundant electric-field tunable symmetry-broken states in twisted monolayer-bilayer graphene
a, b Thermal activation gap at filling factor ν = 2 versus B|| at electric displacement field D = 0.45 V/nm, 0.50 V/nm (a) and B⊥ at D = −0.3 V/nm, −0.5 V/nm (b), respectively. The Lande g factors are extracted from the linear fittings. Error bar represents the standard deviation. c, d Schematics of band dispersion evolution in B|| and B⊥ for the two different ground states at ν = 2, spin polarization dominant state (c) and valley polarization dominant state (d), respectively. The solid (dashed) line refers to K (K′) valley. Blue (red) line and arrows refer to spin up (down). The green dashed line is Fermi level at ν = 2. w(\({w}^{\prime }\)) is the width of the overlap of different spin (valley) polarized bands.
