Symmetry broken states at high displacement fields in ABA trilayer graphene

The authors investigate here high-mobility trilayer graphene under large displacement fields, revealing symmetry-broken Landau levels from both monolayer-like and bilayer-like bands. They observe a displacement field induced enhancement of the Land\'e $g$-factor and map complex Landau level crossings in the Dirac gully regime. These findings highlight strong interaction effects, particle-hole asymmetry, and limitations of noninteracting models, advancing our understanding of quantum Hall phases in multiband graphene systems.