Unveiling surprises at the junction of a nodal odd-parity superconductor and an s-wave superconductor, with potential relevance to UTe2

The interface of a spin triplet superconductor and a spin singlet s-wave superconductor, at the zeroth order may seem uneventful. Because coherent Josephson tunneling is hindered by symmetry. However, delving deeper into this scenario reveals a tapestry of surprising and intriguing physics.

In this presentation, I will unveil the phenomena unfolding at the junction of a nodal odd-parity superconductor and an s-wave superconductor. The richness of such interface is rooted in the presence of topological surface states within the odd-parity superconductor. An exemplary physical system embodying the principles discussed here could be the UTe2/Nb interface.

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