Electromagnetic coupling and transport in a topological insulator-graphene heterostructure

The electromagnetic coupling between heterostructures made of different materials is of great interest, both from the perspective of discovering new phenomena, as well as for its potential applications in novel devices. In this work, we study the electromagnetic coupling of a heterostructure made of a topological insulator (TI) slab and a single graphene layer, where the later presents a diluted concentration of ionized impurities. We explore the topological effects of the magnetoelectric polarizability of the TI, as well as its relative dielectric permittivity on the electrical conductivity in graphene at low but finite temperatures.

Automated summary

In this research, the electromagnetic coupling of a heterostructure made of a topological insulator and a single graphene layer with ionized impurities is studied. The topological effects of the magnetoelectric polarizability of the topological insulator and its relative dielectric permittivity are explored on the electrical conductivity of graphene at low temperatures.