Fig. 4: Summary of the various phases observed.

a Four different colours are used to indicate the extent of the phases in the density and magnetic field subspace; Ferromagnetism (orange), Chern insulator (sky blue), Lifshitz transitions (red) and reset (blue). The inset shows low field phase diagram up to B = 0.2 T for a density range of ν = 1.5−2 in the shaded region of the main panel. The densities corresponding to Lifshitz transitions and reset are marked by red and blue circles, respectively. While ferromagnetism, Lifshitz transitions and reset occur below ν = 2, the Chern insulator emanates from exactly ν = 2 outside the ferromagnetic region. b Coercive field as a function of ν for various reports on graphene-based moiré systems including TBG, twisted monolayer bilayer graphene (TMBG), twisted double bilayer graphene (TDBG), ABC-trilayer graphene (TLG) aligned with hBN, and TBG/WSe₂ clearly indicates the large coercive field observed in this work.