Spin and charge currents in SNS Josephson junction with f-wave pairing symmetry

Abstract

We study transport properties and local density of states in a clean superconductor-normal metal-superconductor Josephson junction with triplet f-wave superconductors, based on the Eilenberger equation. Effects of the thickness of normal metal and a misorientation between the gap vector of the superconductors on the spin and charge currents are investigated. A spin current, which arises from the misalignment of the d-vectors, in the absence of charge current for some values of phase difference between the superconductors is found. We also find unconventional behavior of the spin current associated with the 0-π transition. The misalignment of the d-vectors also gives rise to a zero energy peak in the density of states in the normal metal. © 2010 IOP Publishing Ltd.