Nonsinusoidal current-phase relation in strongly ferromagnetic and moderately disordered SFS junctions
Mesoscale and Nanoscale Physics
2009-11-13 v1
Abstract
We study the Josephson current in a junction comprising two superconductors linked by a strong ferromagnet in presence of impurities. We focus on a regime where the electron (and hole) motion is ballistic over the exchange length and diffusive on the scale of the weak link length. The current-phase relation is obtained for both two- and three dimensional ferromagnetic weak links. In the clean limit, the possibility of temperature-induced 0- transitions is demonstrated while the corresponding critical current versus temperature dependences are also studied.
Keywords
Cite
@article{arxiv.0807.2560,
title = {Nonsinusoidal current-phase relation in strongly ferromagnetic and moderately disordered SFS junctions},
author = {F. Konschelle and J. Cayssol and A. Buzdin},
journal= {arXiv preprint arXiv:0807.2560},
year = {2009}
}
Comments
10 pages, 7 figures