Quantized transport of interface and edge states in bent graphene

We explore the transport behavior of interface and edge states in bent graphene under a magnetic field. The bending angle can change the distribution of interface and edge states, resulting in an interesting evolution of quantized conductance. The interface state vanishes when the bending angle is not less than π/2, whereas the edge state remains. In the presence of Zeeman splitting, the transport properties are also considered and a quantum spin Hall effect is found. These results may provide a way to control the interface current.