Extended Data Fig. 7: Resolving the local quantum Hall states in flat and dispersive bands in device A.
From: Mapping the twist-angle disorder and Landau levels in magic-angle graphene
Global Rxx (purple, right axis) and local \({B}_{z}^{{\rm{ac}}}\) (blue, left axis) measured at a point in the bulk of device A versus the electron density ne at Ba = 1.19 T. The sharp \({B}_{z}^{{\rm{ac}}}\) peaks reflect the IT current in incompressible strips with sign determined by the sign of σyx, magnitude by the Landau level energy gap and separation by the Landau level degeneracy (red bars). The dispersive bands are shaded in yellow and the signal in the flat bands is amplified six times for clarity.
