Extended Data Fig. 4: Landau fan at D = 0.
From: Tunable correlated Chern insulator and ferromagnetism in a moiré superlattice
Longitudinal resistivity ρxx (colour scale) as a function of carrier density and magnetic field at displacement field D = 0. Clear Landau levels develop from the charge neutrality point and fully filled points at D = 0, which is direct evidence of the high quality of the encapsulated ABC-TLG device described in the main text. The first resolved quantum Hall state of the charge neutrality point is ν = 6. This Landau fan diagram establishes conclusively that we have ABC trilayer graphene in the hBN encapsulated device; it is completely different from the Landau fan diagram of ABA trilayer graphene (see ref. 14).
