2018/03/08 by J. C. López, Jose Chesta Lopez, Luis E. F. Foa Torres +2
Materials Science · Mathematics · Physics and Astronomy · #Band gap #Condensed matter physics #Conductance #Fermi surface #Gapless playback #Geometry #Graphene research and applications #Mathematics #Physics #Point reflection #Quantum and electron transport phenomena #Quantum mechanics #Scattering #Semimetal #Surface (topology) #Surface states #Topological Materials and Phenomena #Weyl semimetal #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.97.125419
published as Phys. Rev. B 97, 125419 (2018) · 7 pages, 7 figures
arxiv created 2018/03/08 · openalex publication_date 2018/03/16 · arxiv updated 2018/03/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Weyl semimetals are a new paradigmatic topological phase of matter featuring a gapless spectrum. One of its most distinctive features is the presence of Fermi arc surface states. Here, we report on atomistic simulations of the dc conductance and quantum Hall response of a minimal Weyl semimetal. By using scattering theory we show that a quantized Hall conductance with a nonvanishing longitudinal conductance emerges associated to the Fermi arc surface states with a remarkable robustness to high concentrations of defects in the system. Additionally, we predict that a slab of a Weyl semimetal with broken time-reversal symmetry bears persistent currents fully determined by the system size and the lattice parameters.