Theory of universal differential conductance of magnetic Weyl type -II junctions

TL;DR

This paper investigates the unique differential conductance properties of magnetic Weyl type-II junctions, revealing distinctive signatures due to tilted dispersion and magnetization, with analytical results and experimental proposals.

Contribution

It provides the first analytical framework for understanding tunneling conductance in magnetic Weyl type-II junctions, highlighting their differences from conventional and Dirac electron systems.

Findings

Robust sub-gap tunneling signatures with varying magnetization

Analytical results for normal-magnetic-superconducting junctions in thin barrier limit

Distinct behaviors compared to conventional and Dirac systems

Abstract

We study the transport properties of junctions of normal and superconducting Weyl semi-metal with tilted dispersion, in the presence of magnetization induced by magnetic strips. The sub gap tunnelling conductance shows robust signatures in the presence of different orientation and strength of magnetization of the magnetic strips. We obtain the analytical results for the normal-magnetic-superconducting junction in the thin barrier limit and demonstrate that these results have no analogues to their conventional counterparts and junctions with Dirac electrons in two-dimensions. We discuss possible experimental setups to test our theoretical predictions.