Spontaneous Josephson spin current in triplet superconductor/ferromagnet/triplet superconductor junctions

This paper theoretically studies Josephson spin currentthrough triplet superconductor/ferromagnet/triplet superconductorjunctions. At the ferromagnet/superconductor interfaces, theferromagnetic scattering potential gives rise to coupling betweenthe Andreev bound states and lifts their spin degeneracy. Thesespin-split Andreev states carry the Josephson spin current throughthe junctions. The generated spin supercurrent can be controlled bythe magnetization of a ferromagnetic thin layer and bias voltageacross the junctions.