English

Triplet contribution to the Josephson current in the nonequilibrium SFS junction

Superconductivity 2010-08-09 v1

Abstract

The Josephson current through a long s-wave superconductor/weak ferromagnet/s-wave superconductor weak link is studied theoretically in the regime of nonequilibrium spin-dependent occupation of electron states in the ferromagnetic intelayer. While under the considered nonequilibrium conditions the standard supercurrent, carried by the singlet part of current-carrying density of states, practically is not modified, the additional supercurrent flowing via the triplet part of the current-carrying density of states appears. Depending on voltage, controlling the particular form of spin-dependent nonequilibrium in the interlayer, this additional current can enhance or reduce the usual current of the singlet component and also switch the junction between 00- and π\pi-states.

Keywords

Cite

@article{arxiv.1008.1251,
  title  = {Triplet contribution to the Josephson current in the nonequilibrium SFS junction},
  author = {I. V. Bobkova and A. M. Bobkov},
  journal= {arXiv preprint arXiv:1008.1251},
  year   = {2010}
}

Comments

6 pages, 4 figures, extended version of arXiv:0911.1646