Work

Reconstruction of Surface Electron Spectrum and Cyclotron Motion in the Charge Density Wave Phase of Weyl Semimetals

Year: 2024

Type: article

Abstract: Charge density wave (CDW) instability drastically affects the surface electron spectrum of a Weyl semimetal. We show that in the CDW phase, the Fermi arcs reconnect into either closed Fermi loops or Frieze patterns traversing the reconstructed surface mini Brillouin zone. For the closed reconnection topology, application of an out of plane magnetic field leads to a cyclotron motion of the surface electrons. We determine the cyclotron frequency as a function of the electron energy and the magnitude of the CDW gap Δ for various orientations of the Fermi arcs. For weak coupling, the period of cyclotron motion is dominated by the time of traversal of the arc reconnection regions and is inversely proportional to Δ.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.133.166601

Authors: A. A. Grigoreva, A. V. Andreev, L. I. Glazman

Institutions: University of Washington, Yale University

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, University of Washington, Office of Naval Research

Awards: G1570376017, Electron transport in low-dimensional and mesoscopic topological solids, Electron transport in topological conductors and superconducting systems, MRSEC: UW Molecular Engineering Materials Center