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Preprint

Seongjin Ahn , E. J. Mele , Hongki Min

2017-02-28

We study the the frequency dependent conductivity of nodal-line semimetals (NLSMs) focusing on the effects of carrier density and energy dispersion on the nodal line. We find that the low frequency conductivity has a rich spectral structure which can be understood using scaling rules derived from the geometry of their Dupin-cyclide Fermi surfaces. We identify different frequency regimes, find scaling rules for the optical conductivity in each and demonstrate them with numerical calculations of the inter- and intraband contributions to the optical conductivity using a low energy model for a generic NLSM.

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Leon Balents, A A Burkov, M. D. Hook (2011)

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, , … (2015)

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Chen Fang, Hongming Weng, Xi Dai … (2016)

http://arxiv.org/licenses/nonexclusive-distrib/1.0/