Spin Hanle effect in mesoscopic superconductors
Superconductivity
2015-02-09 v2 Mesoscale and Nanoscale Physics
Abstract
We present a theoretical study of spin transport in a superconducting mesoscopic spin valve under the action of a magnetic field misaligned with respect to the injected spin. We demonstrate that superconductivity can either strongly enhance or suppress the coherent spin rotation depending on the type of spin relaxation mechanism being dominated either by spin-orbit coupling or spin-flip scattering at impurities. We also predict a hitherto unknown subgap contribution to the nonlocal conductance in multiterminal superconducting hybrid structures which completely eliminates the effect of spin rotation at sufficiently low temperatures.
Keywords
Cite
@article{arxiv.1408.1632,
title = {Spin Hanle effect in mesoscopic superconductors},
author = {M. Silaev and P. Virtanen and T. T. Heikkilä and F. S. Bergeret},
journal= {arXiv preprint arXiv:1408.1632},
year = {2015}
}