Superconducting proximity effect in a mesoscopic ferromagnetic wire

Details Superconducting proximity effect in a mesoscopic ferromagnetic wire Superconducting proximity effect in a mesoscopic ferromagnetic wire

1998-06-12

arxiv.org/abs/cond-mat/9806161v2

Phys. Rev. B 58, R11872 (1998)

Physics

Condensed Matter

4 pages, 6 included epsf figures, published version with small changes

Scientific paper

10.1103/PhysRevB.58.R11872

We present an experimental study of the transport properties of a ferromagnetic metallic wire (Co) in metallic contact with a superconductor (Al). As the temperature is decreased below the Al superconducting transition, the Co resistance exhibits a significant dependence on both temperature and voltage. The differential resistance data show that the decay length for the proximity effect is much larger than we would simply expect from the exchange field of the ferromagnet.

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