Effects of domain walls in bilayer graphene in an external magnetic field

Quantum Hall Interferometry in Triangular Domains of Marginally Twisted Bilayer Graphene

“…In the QH regime, the trajectories of the charge carriers are heavily influenced by the perpendicular magnetic field and the underlying moiré lattice. Because the domain walls separate the triangular AB/BA regions, the QH chiral channels will manifest along the domain walls (see Figure a) forming local Landau levels inside the AB/BA domains. , Importantly, the domain walls function as a sample edge in the QH regime. The AA regions can function as nodes that facilitate tunneling between the local chiral edge channels of the neighboring AB/BA regions.…”