Quantization of interface currents

Journal article
(Original article)

Publication Details

Author(s): Kotani M, Schulz-Baldes H, Villegas-Blas C
Journal: Journal of Mathematical Physics
Publisher: American Institute of Physics (AIP)
Publishing place: to appear in
Publication year: 2014
Volume: 55
ISSN: 0022-2488


At the interface of two two-dimensional quantum systems, there may exist interface currents similar to edge currents in quantum Hall systems. It is proved that these interface currents are macroscopically quantized by an integer that is given by the difference of the Chern numbers of the two systems. It is also argued that at the interface between two time-reversal invariant systems with half-integer spin, one of which is trivial and the other non-trivial, there are dissipationless spin-polarized interface currents.

FAU Authors / FAU Editors

Schulz-Baldes, Hermann Prof. Dr.
Professur für Mathematik (Mathematische Physik)

External institutions with authors

National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM)
Tohoku University

How to cite

Kotani, M., Schulz-Baldes, H., & Villegas-Blas, C. (2014). Quantization of interface currents. Journal of Mathematical Physics, 55. https://dx.doi.org/10.1063/1.4902377

Kotani, Motoko, Hermann Schulz-Baldes, and Carlos Villegas-Blas. "Quantization of interface currents." Journal of Mathematical Physics 55 (2014).


Last updated on 2018-18-07 at 06:23