Anomalous Josephson effect in S/SO/F/S heterostructures
M. Minutillo, D. Giuliano, P. Lucignano, A. Tagliacozzo, G. Campagnano
DOI 10.1103/PhysRevB.98.144510 · Physical Review B
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Abstract
We study the anomalous Josephson effect, as well as the dependence on the direction of the critical Josephson current, in an S/N/S junction, where the normal part is realized by alternating spin-orbit coupled and ferromagnetic layers. We show that to observe these effects it is sufficient to break spin rotation and time-reversal symmetry in spatially separated regions of the junction. Moreover, we discuss how to further improve these effects by engineering multilayer structures with more that one couple of alternating layers.
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