Strong light-matter interaction in systems described by a modified Dirac equation

Abstract

The bulk states of some materials, such as topological insulators, are described by a modified Dirac equation. Such systems may have trivial and non-trivial phases. In this paper, we show that in the non-trivial phase a strong light-matter interaction exists in a two-dimensional system, which leads to an optical conductivity at least one order of magnitude larger than that of graphene.

http://iopscience.iop.org/0953-8984/25/30/305801/

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Cited by in corpus (6)

• Intrinsic optical conductivity of modified-Dirac fermion systems
• Optical properties of magnetically doped ultra-thin topological insulator slabs
• Optical responses and optical activity of ultrathin films of topological insulator
• Carrier concentrations and optical conductivity of a band-inverted semimetal in two and three dimensions
• Anomalous Behaviour in the Magneto-Optics of a Gapped Topological Insulator
• Universal absorption of two-dimensional systems