Weyl Semimetal from the Honeycomb Array of Topological Insulator Nanowires

Abstract

We show that isolated Weyl nodes can arise in a system of parallel topological insulator nano-wires arranged in a honeycomb fashion. This introduces another theoretical example of a topological semi-metal phase with more than one pair of Weyl nodes and due to the simple form of its Hamiltonian it can be used to study various interesting phenomena associated with this phase. Our result emphasizes that depending on the separation of the Weyl nodes a topological electromagnetic response might or might not emerge and two pairs might have overall cancelling contributions to the net anomalous Hall conductivity.

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Cited by in corpus (10)

• Wire constructions of Abelian topological phases in three or more dimensions
• Coupled-wire constructions: a Luttinger liquid approach to topology
• Theory of a 3+1D fractional chiral metal: interacting variant of the Weyl semimetal
• Interaction Enabled Fractonic Higher-Order Topological Phases
• Ground state degeneracy of non-Abelian topological phases from coupled wires
• From Dirac semimetals to topological phases in three dimensions: a coupled wire construction
• Unification of parton and coupled-wire approaches to quantum magnetism in two dimensions
• Coupled Wire Models of Interacting Dirac Nodal Superconductors
• A coupled wire description of surface $ADE$ topological orders
• Topological Dipole Insulator