Spin-accumulation in small ferromagnetic double barrier junctions
arXiv:cond-mat/9811179 · doi:10.1103/PhysRevB.59.93
Abstract
The non-equilibrium spin accumulation in ferromagnetic double barrier junctions is shown to govern the transport in small structures. Transport properties of such systems are described by a generalization of the theory of the Coulomb blockade. The spin accumulation enhances the magnetoresistance. The transient non-linear transport properties are predicted to provide a unique experimental evidence of the spin-accumulation in the form of a reversed current on time scales of the order of the spin-flip relaxation time.
4 pages, 3 figures, to appear in PRB