Current response of a topological insulator to a static Zeeman field.

@article{Huang2016CurrentRO,
  title={Current response of a topological insulator to a static Zeeman field.},
  author={Bor-Luen Huang and S. Yip},
  journal={Journal of physics. Condensed matter : an Institute of Physics journal},
  year={2016},
  volume={28 2},
  pages={026002}
}
We study the magnetoelectric coupling at the surface of a topological insulator. We are particularly interested in the surface current induced by a static Zeeman/exchange field. This surface current can be related to the orbital magnetization of the system. For an insulator with zero Chern number, the orbital magnetization is independent of the details at the boundary. With the appearance of surface states in the topological insulator, it is not immediately obvious if the response is affected… CONTINUE READING