{ "id": "1703.02885", "version": "v1", "published": "2017-03-08T15:56:40.000Z", "updated": "2017-03-08T15:56:40.000Z", "title": "Competition between disorder and interaction effects in 3D Weyl semimetals", "authors": [ "J. Gonzalez" ], "comment": "5 pages, 4 figures", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el" ], "abstract": "We investigate the low-energy scaling behavior of an interacting 3D Weyl semimetal in the presence of disorder. In order to achieve a renormalization group analysis of the theory, we focus on the effects of a short-ranged-correlated disorder potential, checking nevertheless that this choice is not essential to locate the different phases of the Weyl semimetal. We show that there is a line of fixed-points in the renormalization group flow of the interacting theory, corresponding to the disorder-driven transition to a diffusive metal phase. Along that boundary, the critical disorder strength undergoes a strong increase with respect to the noninteracting theory, as a consequence of the unconventional screening of the Coulomb and disorder-induced interactions. A complementary resolution of the Schwinger-Dyson equations allows us to determine the full phase diagram of the system, showing the prevalence of a renormalized semimetallic phase in the regime of intermediate interaction strength, and adjacent to the non-Fermi liquid phase characteristic of the strong interaction regime of 3D Weyl semimetals.", "revisions": [ { "version": "v1", "updated": "2017-03-08T15:56:40.000Z" } ], "analyses": { "keywords": [ "interaction effects", "competition", "non-fermi liquid phase characteristic", "full phase diagram", "renormalization group analysis" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }