Phase dynamics and dissipation in tunnel ferromagnetic Josephson junctions
The study compared tunnel ferromagnetic Josephson junctions using niobium and aluminum electrodes with different ferromagnetic barriers across micrometric and submicrometric scales. It found that while Nb-based junctions showed a 60% suppression of critical current due to the Py barrier, Al-based junctions preserved fundamental electrodynamic features. The results suggest Al-based SIsFS architectures are better for quantum computing due to lower dissipation.