Spin polarized transport in the weak link between f-wave superconductors

• Published in: Physica. C, Superconductivity Superconductivity, 2007, Vol.451 (1), p.31-37
• Main Authors: Rashedi, G., Kolesnichenko, Yu.A.
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electronic transport in condensed matter; Exact sciences and technology; Metals, alloys and compounds (a15, 001c15, laves phases, chevrel phases, borocarbides, etc.); Physics; Proximity effects, weak links, tunneling phenomena, and josephson effects, adreev effect, sn and sns junctions; Spin polarized transport; Superconducting materials (excluding high-tc compounds); Superconductivity
• ISSN: 0921-4534; 1873-2143
• DOI: 10.1016/j.physc.2006.10.001

The spin current in the Josephson junction as a weak-link (interface) between misoriented triplet superconductors is investigated theoretically for the models of the order parameter in UPt 3. Green functions of the system are obtained from the quasiclassical Eilenberger equations. The analytical results for the charge and spin currents are illustrated by numerical calculations for the certain misorientation angles of gap vector of superconductors. As the main result of this paper, it is found that, at some values of the phase difference, at which the charge current is exactly zero, the spin current has its maximum value. Furthermore, it is shown that the origin of spin current is the misorientation between gap vectors of triplet superconductors.