Spin-accumulation-induced resistance in mesoscopic ferromagnet-superconductor junctions

1999/01/28 by F. J. Jedema, B. J. van Wees, B. H. Hoving +2 · 5 citations
Materials Science · Physics and Astronomy · #Magnetic and transport properties of perovskites and related materials #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #cond-mat.mes-hall #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.60.16549

RevTeX 10 pages, 4 figures, submitted to Phys.Rev. Lett

arxiv created 1999/01/28 · openalex publication_date 1999/12/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a description of spin-polarized transport in mesoscopic ferromagnet-superconductor (F/S) systems, where the transport is diffusive and the interfaces are transparent. It is shown that the spin reversal associated with Andreev reflection generates an excess spin density close to the F/S interface, which leads to a spin contact resistance. Expressions for the contact resistance are given for two-terminal and four-terminal geometries. In the latter the sign depends on the relative magnetization of the ferromagnetic electrodes.

Cited by

• Sign of the crossed conductances at a ferromagnet/superconductor/ferromagnet double interface
• Microscopic theory of equilibrium properties of F/S/F trilayers with weak ferromagnets
• Crossed conductance in ferromagnet/superconductor/ferromagnet double junctions: Role of out-of-equilibrium populations
• Long-range statistical fluctuations of the crossed Josephson current
• First- and second-order phase transitions, Fulde-Ferrel inhomogeneous state, and quantum criticality in ferromagnet/superconductor double tunnel junctions