Gauge fields at the surface of topological insulators

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.

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

References in corpus (9)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Topological Insulators with Inversion Symmetry
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• Half-metallic ferromagnets: From band structure to many-body effects
• The spin Hall effect in a quantum gas
• Tunable Casimir repulsion with three dimensional topological insulators
• Electric charging of magnetic textures on the surface of a topological insulator
• Thin-Film Magnetization Dynamics on the Surface of a Topological Insulator
• Electron-electron interaction and charging effects in graphene quantum dots

Cited by in corpus (4)

• Ferromagnetic two-dimensional crystals: Single layers of K2CuF4
• Domain Wall Motion in Thin-Film Magnets/ Topological Insulator Junctions
• Quantum Capacitance of a Topological Insulator-Ferromagnet Interface
• Bound-states and polarized charged zero modes in three-dimensional topological insulators induced by a magnetic vortex