0-π Transition in Magnetic Triplet Superconductor Josephson Junctions

P. M. R. Brydon; Dirk Manske

doi:10.1103/PhysRevLett.103.147001

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0-π Transition in Magnetic Triplet Superconductor Josephson Junctions

P. M. R. Brydon, Dirk Manske

DOI 10.1103/PhysRevLett.103.147001 · Physical Review Letters

T1

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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 nonperturbative Bogoliubov–de Gennes method.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown