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American Physical Society, Physical Review B (Condensed Matter), 1(59), p. 93-96, 1999

DOI: 10.1103/physrevb.59.93

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Spin-accumulation in small ferromagnetic double barrier junctions

Journal article published in 1998 by Arne Brataas ORCID, Y.-U. V. Nazarov, J. Inoue, Gerrit E. W. Bauer
This paper is available in a repository.
This paper is available in a repository.

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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. Comment: 4 pages, 3 figures, to appear in PRB