• Editors' Suggestion

Infinite Berry Curvature of Weyl Fermi Arcs

Dennis Wawrzik, Jhih-Shih You, Jorge I. Facio, Jeroen van den Brink, and Inti Sodemann
Phys. Rev. Lett. 127, 056601 – Published 30 July 2021
PDFHTMLExport Citation

Abstract

We show that Weyl Fermi arcs are generically accompanied by a divergence of the surface Berry curvature scaling as 1/k2, where k is the distance to a hot line in the surface Brillouin zone that connects the projection of Weyl nodes with opposite chirality, but which is distinct from the Fermi arc itself. Such surface Berry curvature appears whenever the bulk Weyl dispersion has a velocity tilt toward the surface of interest. This divergence is reflected in a variety of Berry curvature mediated effects that are readily accessible experimentally and, in particular, leads to a surface Berry curvature dipole that grows linearly with the thickness of a slab of a Weyl semimetal material in the limit of the long lifetime of surface states. This implies the emergence of a gigantic contribution to the nonlinear Hall effect in such devices.

  • Figure
  • Figure
  • Received 8 October 2020
  • Accepted 29 June 2021

DOI:https://doi.org/10.1103/PhysRevLett.127.056601

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Dennis Wawrzik1, Jhih-Shih You2, Jorge I. Facio1, Jeroen van den Brink1,3, and Inti Sodemann4

  • 1Institute for Theoretical Solid State Physics, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
  • 2Department of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
  • 3Institut für Theoretische Physik and Würzburg-Dresden Cluster of Excellence ct.qmat, Technische Universität Dresden, 01062 Dresden, Germany
  • 4Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Straße 38, 01187 Dresden, Germany

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 127, Iss. 5 — 30 July 2021

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×