Connecting the dots: Time-reversal symmetric Weyl Semimetals with tunable Fermi arcs

Abstract

We propose a one-parameter family of noninteracting lattice models for Weyl semimetals with 4 Weyl nodes and tunable Fermi arcs. These 2-band model Hamiltonians are time-reversal symmetric with ${\mathrm{T}}^2=+1$, and tuning the parameter changes the connectivity of the Fermi arcs continuously without affecting the location and chiralities of the Weyl nodes in the bulk Brillouin zone. The bulk polarization and magnetization are shown to vary with this parameter, a dependence inaccessible to the low energy effective field theory.

arXiv comment8 pages, 3 figures

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Cited by in corpus (10)

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• Chiral pair of Fermi arcs, anomaly cancelation, and spin or valley Hall effects in inversion symmetry-broken Weyl metals
• Magnetic Breakdown and Chiral Magnetic Effect at Weyl-Semimetal Tunnel Junctions
• Weyl orbits without an external magnetic field
• Quantum Oscillation Signatures of Fermi Arcs in Tunnel Magnetoconductance
• Exotic surface states in hybrid structures of topological insulators and Weyl semimetals