Quantization of interface currents

Kotani M, Schulz-Baldes H, Villegas-Blas C (2014)

Publication Type: Journal article, Original article

Publication year: 2014

Journal

Journal of Mathematical Physics American Institute of Physics (AIP)

Publisher: American Institute of Physics (AIP)

City/Town: to appear in

Book Volume: 55

Article Number: 121901

Journal Issue: 12

URI: http://de.arxiv.org/abs/1405.0408

DOI: 10.1063/1.4902377

Abstract

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.

Authors with CRIS profile

Hermann Schulz-Baldes Professur für Mathematik (Mathematische Physik)

Involved external institutions

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

How to cite

APA:

Kotani, M., Schulz-Baldes, H., & Villegas-Blas, C. (2014). Quantization of interface currents. Journal of Mathematical Physics, 55(12). https://dx.doi.org/10.1063/1.4902377

MLA:

Kotani, Motoko, Hermann Schulz-Baldes, and Carlos Villegas-Blas. "Quantization of interface currents." Journal of Mathematical Physics 55.12 (2014).

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