Quantum Spin Fluctuations as a Source of Long-Range Proximity Effects in Diffusive Ferromagnet-Superconductor Structures
Mesoscale and Nanoscale Physics
2009-10-31 v1 Superconductivity
Abstract
We show that quantum spin fluctuations in inhomogeneous ferromagnets drastically affect the Andreev reflection of electrons and holes at a ferromagnet-superconductor interface. As a result a strong long-range proximity effect appears, associated with electron-hole spin triplet correlations and persisting on a lenght scale typical for non-magnetic materials, but anomalously large for ferromagnets.
Cite
@article{arxiv.cond-mat/0012437,
title = {Quantum Spin Fluctuations as a Source of Long-Range Proximity Effects in Diffusive Ferromagnet-Superconductor Structures},
author = {A. Kadigrobov and R. I. Shekhter and M. Jonson},
journal= {arXiv preprint arXiv:cond-mat/0012437},
year = {2009}
}
Comments
4 pages, 2 figures