Influence of spin relaxation length on lateral double superconductor/ ferromagnet/superconductor junctions
Journal
Journal of Applied Physics
Journal Volume
109
Journal Issue
7
Date Issued
2011
Author(s)
Abstract
We study the spin dependent transport at the junctions between two superconducting Nb leads connected by two ferromagnetic NiFe bars in parallel, which have various separations. The separation distance l between NiFe bars was varied from 150 to 700 nm to study the spin relaxation effect in Nb. In small l (150 and 250 nm) samples, a spin-valve-like behavior related to the inverse proximity effect was observed, which manifest itself as charge accumulation due to spin imbalance near the interface. However, for samples with large l, the spin-valve behavior vanishes and the anisotropic magnetoresistance effect dominates.
Type
conference paper