Transport properties of a nonunitary SNS Josephson junction

Abstract

In this paper, we investigate the charge and spin currents in the Josephson junction between two superconductors with nonunitary order parameters. Two nonunitary spin-triplet superconductors sandwich a thin film of normal metal and constitute a Josephson junction. We study the transport properties of this superconductor-normal metal-superconductor (SNS) Josephson junction using the quasiclassical Eilenberger equation in the clean limit. An external phase difference between order parameters and a misorientation between two gap vectors of two superconductors exist. Influence of the misorientation between left and right superconducting gap vectors and thickness of normal metal and Josephson phase difference between two order parameters on the charge and spin transport in the junction, are studied, theoretically. © 2012 Elsevier B.V. All rights reserved.