Dislocation defect as a bulk probe of monopole charge of multi-Weyl semimetals

Abstract

The authors show that a dislocation defect can probe the monopole charge characterizing the electronic topology of a multi-Weyl semimetal. To this end, a rather simple mesoscopic setup has been proposed in which this topological invariant leaves a direct imprint on the electrical conductance. Furthermore, the effective pseudo-magnetic flux of the dislocation can be measured in the same setup. These results pave the way for the exploration of the interplay between the lattice and the electronic topology in topological metals.

Topics & Concepts