Nonlocal transport in Weyl semimetals in the hydrodynamic regime

E. V. Gorbar, V. A. Miransky, I. A. Shovkovy, and P. O. Sukhachov
Phys. Rev. B 98, 035121 – Published 16 July 2018

Abstract

The nonlocal response of chiral electron fluid in a semi-infinite Weyl semimetal slab with the electric current source and drain attached to its surface is studied by using the consistent hydrodynamic framework. It is found that the Chern-Simons terms lead to a spatial asymmetry of the electron flow and the electric field. Most remarkably, the corresponding topological terms could result in a negative nonlocal resistance. In addition, they give rise to the anomalous Hall current, which is sensitive to the spatial distribution of the electric field in the plane of the contacts and depends on the orientation of the chiral shift.

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  • Received 12 April 2018

DOI:https://doi.org/10.1103/PhysRevB.98.035121

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

E. V. Gorbar1,2, V. A. Miransky3, I. A. Shovkovy4,5, and P. O. Sukhachov3

  • 1Department of Physics, Taras Shevchenko National Kiev University, Kiev 03680, Ukraine
  • 2Bogolyubov Institute for Theoretical Physics, Kiev 03680, Ukraine
  • 3Department of Applied Mathematics, Western University, London, Ontario, Canada N6A 5B7
  • 4College of Integrative Sciences and Arts, Arizona State University, Mesa, Arizona 85212, USA
  • 5Department of Physics, Arizona State University, Tempe, Arizona 85287, USA

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Issue

Vol. 98, Iss. 3 — 15 July 2018

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