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arXiv · 1609.08368

New Quantum Transition in Weyl Semimetals with Correlated Disorder

Thibaud Louvet·David Carpentier·Andrei A. Fedorenko
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Abstract

A Weyl semimetal denotes an electronic phase of solids in which two bands cross linearly. In this paper we study the effect of a spatially correlated disorder on such a phase. Using a renormalization group analysis, we show that in three dimensions, three scenarios are possible depending on the disorder correlations. A standard transition is recovered for short range correlations. For disorder decaying slower than $1/r^{2}$, the Weyl semimetal is unstable to any weak disorder and no transition persists. In between, a new phase transition occurs. This transition still separates a disordered metal from a semi-metal, but with a new critical behavior that we analyze to two-loop order.

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Thibaud Louvet, David Carpentier, Andrei A. Fedorenko. 2016-09-27. New Quantum Transition in Weyl Semimetals with Correlated Disorder. https://doi.org/10.1103/physrevb.95.014204

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