Gauge fields at the surface of topological insulators

Details Gauge fields at the surface of topological insulators Gauge fields at the surface of topological insulators

2011-05-30

arxiv.org/abs/1105.6132v2

Physics

Condensed Matter

Materials Science

We have fixed Fig. 2 b and c that were exchanged in the previous version

Scientific paper

We study the emergence of gauge couplings in the surface states of topological insulators. We show that gauge fields arise when a three dimensional strong topological insulator is coated with an easy-plane ferromagnet with magnetization parallel to the surface. We analyze the modification induced by the gauge fields on the surface spectrum for some specific magnetic configurations.

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