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arXiv · 1005.3211

Optical Hall conductivity of systems with gapped spectral nodes

A. Hill·A. Sinner·K. Ziegler
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Abstract

We calculate the optical Hall conductivity within the Kubo formalism for systems with gapped spectral nodes, where the latter have a power-law dispersion with exponent n. The optical conductivity is proportional to n and there is a characteristic logarithmic singularity as the frequency approaches the gap energy. The optical Hall conductivity is almost unaffected by thermal fluctuations and disorder for n=1, whereas disorder has a stronger effect on transport properties if n=2.

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A. Hill, A. Sinner, K. Ziegler. 2010-05-18. Optical Hall conductivity of systems with gapped spectral nodes. https://doi.org/10.1140/epjb/e2012-30887-1

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