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arXiv · 1105.6132

Gauge fields at the surface of topological insulators

M. I. Katsnelson·F. Guinea·M. A. H. Vozmediano
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Abstract

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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M. I. Katsnelson, F. Guinea, M. A. H. Vozmediano. 2011-06-04. Gauge fields at the surface of topological insulators. https://doi.org/10.1209/0295-5075%2F104%2F17001

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