Spin accumulation induced resistance in mesoscopic ferromagnet/ superconductor junctions
Mesoscale and Nanoscale Physics
2009-10-31 v1 Superconductivity
Abstract
We present a description of spin-polarized transport in mesoscopic ferromagnet-superconductor (F/S) systems, where the transport is diffusive, and the interfaces are transparent. It is shown that the spin reversal associated with Andreev reflection generates an excess spin density close to the F/S interface, which leads to a spin contact resistance. Expressions for the contact resistance are given for two terminal and four terminal geometries. In the latter the sign depends on the relative magnetization of the ferromagnetic electrodes.
Cite
@article{arxiv.cond-mat/9901323,
title = {Spin accumulation induced resistance in mesoscopic ferromagnet/ superconductor junctions},
author = {F. J. Jedema and B. J. van Wees and B. H. Hoving and A. T. Filip and T. M. Klapwijk},
journal= {arXiv preprint arXiv:cond-mat/9901323},
year = {2009}
}
Comments
RevTeX 10 pages, 4 figures, submitted to Phys.Rev. Lett