2015/07/31 by D. A. Pesin, E. G. Mishchenko, Alex Levchenko +1 · 3 citations
Materials Science · Physics and Astronomy · #2D Materials and Applications #Condensed matter physics #Context (archaeology) #Degeneracy (biology) #Density of states #Geology #Graphene research and applications #Landau quantization #Magnetic field #Magnetoresistance #Materials science #Physics #Quantum mechanics #Range (aeronautics) #Semimetal #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.92.174202
published as Phys. Rev. B 92, 174202 (2015) · Published version; new subsections elaborating on the diagrammatic technique used, as well as the comparison of our results to the self-consistent Born approximation
openalex publication_date 2015/11/23 · arxiv created 2016/03/24 · arxiv updated 2016/03/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We study the density of states and magnetotransport properties of disordered Weyl semimetals, focusing on the case of a strong long-range disorder. To calculate the disorder-averaged density of states close to nodal points, we treat exactly the long-range random potential fluctuations produced by charged impurities, while the short-range component of disorder potential is included systematically and controllably with the help of a diagram technique. We find that, for energies close to the degeneracy point, long-range potential fluctuations lead to a finite density of states. In the context of transport, we discuss that a self-consistent theory of screening in magnetic field may conceivably lead to nonmonotonic low-field magnetoresistance.