Tunable Lifshitz Transitions and Multiband Transport in Tetralayer Graphene
Tunable Lifshitz Transitions and Multiband Transport in Tetralayer Graphene
As the Fermi level and band structure of two-dimensional materials are readily tunable, they constitute an ideal platform for exploring the Lifshitz transition, a change in the topology of a material's Fermi surface. Using tetralayer graphene that host two intersecting massive Dirac bands, we demonstrate multiple Lifshitz transitions and multiband …