Novel Josephson Effect in Triplet Superconductor - Ferromagnet - Triplet Superconductor Junctions
Boris Kastening, Dirk K. Morr, Dirk Manske, Karl Bennemann
TL;DR
This paper predicts a new Josephson effect in triplet superconductor-ferromagnet-triplet superconductor junctions, showing complex current behavior influenced by magnetic orientation and temperature, enabling novel switching applications.
Contribution
It introduces a novel Josephson effect in triplet superconductor junctions with unique orientation and temperature dependencies, expanding understanding of superconducting spintronics.
Findings
Josephson current depends on ferromagnetic and d-vector orientations
Temperature can induce sign change in Josephson current
Potential for designing Josephson current switches
Abstract
We predict a novel type of Josephson effect to occur in triplet superconductor - ferromagnet - triplet superconductor Josephson junctions. We show that the Josephson current, I_J, exhibits a rich dependence on the relative orientation between the ferromagnetic moment and the d-vectors of the superconductors. This dependence can be used to build several types of Josephson current switches. Moreover, we predict an unconventional temperature dependence of I_J in which I_J changes sign with increasing temperature
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