Spin polarization and Zeeman effects in ferromagnet/ferromagnetic -wave superconductor junctions

An extended Blonder–Tinkham–Klapwijk (BTK) approach is applied to study the spin polarization and Zeeman effects in ferromagnet/ferromagnetic p -wave superconductor ( FM / F p S ) junctions. Three kinds of pairings for FpS are chosen: p x , p y , p x + i p y waves. It is found that the normalized conductance strongly depends on both kinds of pairings and the relative orientations of the effective exchange field in the FM and F p S . In triplet superconductor junctions the multiplication of zero-energy Andreev bound states (ABSs) with the Zeeman effect induces an additional peak splitting. This property may serve as a method to identify triplet symmetry of ferromagnetic superconductors.