Finite frequency magnetoelectric response of three dimensional Topological Insulators

Abstract

Topological insulators with a time reversal symmetry breaking perturbation near the surface present a magnetoelectric response that is quantized when the frequency of the probing fields is much smaller than the surface gap induced by the perturbation. In this work we describe the intrinsic finite frequency magnetoelectric response of topological insulators for frequencies of the order and larger than the surface gap, including the experimentally relevant case where the system is metallic. This response affects physical observable quantities and will give rise to new finite frequency phenomena of intrinsic topological origin.

7 pages, 3 figures, published version

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Cited by in corpus (10)

• A Materials Perspective on Casimir and van der Waals Interactions
• Repulsive Casimir Effect with Chern insulators
• The Casimir effect in topological matter
• Optical properties of magnetically doped ultra-thin topological insulator slabs
• Calculation of divergent photon absorption in ultrathin films of a topological insulator
• Orbital Edelstein effect from density-wave order
• Van der Waals torque and force between anisotropic topological insulator slabs
• Determination of the quantized topological magneto-electric effect in topological insulators from Rayleigh scattering
• Anomalous Hall Response in Two Dimensional Topological Insulators due to the Stark Effect
• Maximal Axion Optical Chirality Enabled by Degenerate Quasibound States in the Continuum