Spin resolved Andreev reflection in ferromagnet-superconductor junctions with Zeeman splitting
Superconductivity
2009-10-31 v1
Abstract
Andreev reflection in ferromagnet-superconductor junctions is derived in a regime in which Zeeman splitting dominates the response of the superconductor to an applied magnetic field. Spin-up and spin-down Andreev reflections are shown to be resolved as voltage is increased. In the metallic limit, the transition from Andreev to tunnel conductivity in the spin-up channels has a non trivial behavior when spin polarization is increased. The conductance is asymmetric in a voltage reversal.
Cite
@article{arxiv.cond-mat/9908465,
title = {Spin resolved Andreev reflection in ferromagnet-superconductor junctions with Zeeman splitting},
author = {R. Mélin},
journal= {arXiv preprint arXiv:cond-mat/9908465},
year = {2009}
}
Comments
RevTex. 13 pages. 3 figures included