Shot noise in Weyl semimetals

P. G. Matveeva, D. N. Aristov, D. Meidan, and D. B. Gutman
Phys. Rev. B 96, 165406 – Published 4 October 2017

Abstract

We study the effect of inelastic processes on the magnetotransport of a quasi-one-dimensional Weyl semimetal, using a modified Boltzmann-Langevin approach. The magnetic field drives a crossover to a ballistic regime in which the propagation along the wire is dominated by the chiral anomaly, and the role of fluctuations inside the sample is exponentially suppressed. We show that inelastic collisions modify the parametric dependence of the current fluctuations on the magnetic field. By measuring shot noise as a function of a magnetic field, for different applied voltage, one can estimate the electron-electron inelastic length lee.

  • Figure
  • Received 16 May 2017
  • Revised 20 August 2017

DOI:https://doi.org/10.1103/PhysRevB.96.165406

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

P. G. Matveeva1,2, D. N. Aristov2,3,4, D. Meidan5, and D. B. Gutman6

  • 1Department of Physics and Research Center Optimas, University of Kaiserslautern, 67663 Kaiserslautern, Germany
  • 2“PNPI” NRC “Kurchatov Institute”, Gatchina 188300, Russia
  • 3Department of Physics, St. Petersburg State University, Ulianovskaya 1, St. Petersburg 198504, Russia
  • 4Institute for Nanotechnology, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
  • 5Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
  • 6Department of Physics, Bar-Ilan University, Ramat Gan, 52900, Israel

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Issue

Vol. 96, Iss. 16 — 15 October 2017

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