  We study electronic and thermoelectric transport in a type I Weyl semimetal
nanojunction, with a torsional dislocation defect, in the presence of an
external magnetic field parallel to the dislocation axis. The defect is modeled
in a cylindrical geometry, as a combination of a gauge field accounting for
torsional strain, and a delta-potential barrier for the lattice mismatch
effect. In the Landauer formalism, we find that due to the combination of
strain and magnetic field, the electric current exhibits chiral
valley-polarization, and the conductance displays the signature of Landau
levels. We also compute the thermal transport coefficients, where a high
thermopower and a large figure of merit are predicted for the junction.

Mesoscale and Nanoscale Physics;Materials Science