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Article Dans Une Revue Phys.Rev.B Année : 2017

New quantum transition in Weyl semimetals with correlated disorder

Résumé

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/r2, 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 semimetal, but with a new critical behavior that we analyze to two-loop order.

Dates et versions

hal-01555219 , version 1 (03-07-2017)

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T. Louvet, D. Carpentier, A.A. Fedorenko. New quantum transition in Weyl semimetals with correlated disorder. Phys.Rev.B, 2017, 95 (1), pp.014204. ⟨10.1103/PhysRevB.95.014204⟩. ⟨hal-01555219⟩

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