Origin and control of spin currents in a magnetic triplet Josephson junction

Abstract

We study the appearance of a Josephson spin current in a model triplet superconductor junction with a magnetically-active tunnelling barrier. We find three distinct mechanisms for producing a spin current, and we provide a detailed discussion of the symmetry properties and the physical origins of each. By combining these three basic mechanisms, we find that it is possible to exercise fine control over the spin currents. In particular, we show that unlike the charge current, the spin currents on either side of the barrier need not be identical.

5 pages, 4 figures, RevTeX

References in corpus (4)

• 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
• Interplay between ferromagnetism and superconductivity in tunneling currents

Cited by in corpus (7)

• Spin Supercurrent, Magnetization Dynamics, and Phi-State in Spin-Textured Josephson Junctions
• 0-$\pi$ transition in magnetic triplet superconductor Josephson junctions
• Proximity effect with noncentrosymmetric superconductors
• Adiabatic and nonadiabatic spin torques induced by spin-triplet supercurrent
• Tunable ground states in helical $p$-wave Josephson junctions
• Josephson effect in spin-singlet superconductor/ferromagnetic insulator/spin-triplet superconductor junctions with helical $p$-wave states
• Tunneling between chiral magnets: Spin current generation without external fields