Correlating Josephson supercurrents and Shiba states in quantum spins unconventionally coupled to superconductors

Abstract

The impact of local magnetic impurities on superconducting order parameter remains largely unexplored. Here, the authors visualize the effect of different magnetic perturbations on a superconductor, unveiling a rich correlation of the interplay between quantum spins and superconductivity in different spectroscopic regimes.