Magneto-optical transitions in bilayer graphene nanoribbons

We utilize the tight-binding theory to study the magneto-optical transitions in bilayer graphene nanoribbons. The magneto-absorption spectra highly depend on the stacking, edge orientation, ribbon width, and strength of magnetic field. The competition between the magnetic quantization and lateral confinement results in the coexistence of edge-dependent selection rules and magneto-absorption selection rule. The magneto-electronic properties, including energy dispersions, density of states, and wave functions, are also discussed in detail.