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arXiv · 1712.05386

A Nernst current from the conformal anomaly in Dirac and Weyl semimetals

M. N. Chernodub·A. Cortijo·M. A. H. Vozmediano
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Abstract

We show that a conformal anomaly in Weyl/Dirac semimetals generates a bulk electric current perpendicular to a temperature gradient and the direction of a background magnetic field. The associated conductivity of this novel contribution to the Nernst effect is fixed by a beta function associated with the electric charge renormalization in the material.

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M. N. Chernodub, A. Cortijo, M. A. H. Vozmediano. 2017-12-14. A Nernst current from the conformal anomaly in Dirac and Weyl semimetals. https://doi.org/10.1103/physrevlett.120.206601

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