0-$\pi$ transition in magnetic triplet superconductor Josephson junctions

Abstract

We examine a Josephson junction involving two arbitrary equal-spin-pairing unitary triplet superconductors and a ferromagnetic tunneling barrier. Using perturbation theory, we show how the interaction of the barrier moment with the spin of the tunneling triplet Cooper pairs can reverse the sign of the Josephson charge current. This also results in a Josephson spin current, which contains a phase-independent contribution due to reflection processes at the barrier. We verify our analytic predictions using a non-perturbative Bogoliubov-de Gennes method.

4 pages, 2 figures, RevTeX, version accepted to PRL

References in corpus (5)

• Spin-dependent Cooper Pair Phase and Pure Spin Supercurrents in Strongly Polarized Ferromagnets
• Novel Josephson Effect in Triplet Superconductor - Ferromagnet - Triplet Superconductor Junctions
• Interplay of ferromagnetism and triplet superconductivity in a Josephson junction
• Theory of Josephson effect in unconventional superconducting junctions with diffusive barriers
• Origin and control of spin currents in a magnetic triplet Josephson junction

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