Fig. 1: Zero magnetic field characterization of the superlattice.
a Sketch of the gated superlattice system. The backgate (dark gray) lays below the patterned substrate (light gray), which induces modulated potential in graphene sandwiched between two hBN layers (blue). The global top gate is shown in yellow. b The backgate capacitance profile with the periodicity λ = 35 nm in the units of 1012cm−2V−1. c Longitudinal resistance Rxx as a function of the backgate and top gate voltages in a four-terminal device shown in the right inset. Left inset: zoom of Rxx in the boxed region. d Rxx line cuts as marked with the respective line colors in (c).
