Interface resistance in ferromagnet/superconductor junctions

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Abstract

Results of theoretical study of spin-polarized tunneling in ferromagnet/superconductor junctions are presented. Spin and charge currents are calculated as a function of applied voltage and spin polarization in a ferromagnet. The model takes into account the splitting of different spin subbands in a ferromagnet and impurity scattering in the contact. The excess resistance of an FS contact due to the charge-imbalance in a superconductor is calculated for the first time. The results have implications for spin-coupled magnetoresistance in ferromagnet/superconductor contacts and for measuring spin polarization in ferromagnets.
Original languageUndefined
Pages (from-to)46-52
Number of pages7
JournalPhysica C
Volume326-32
Issue number326-327
DOIs
Publication statusPublished - 1999

Keywords

  • Ferromagnet/superconductor junctions
  • Spin-polarized tunneling
  • METIS-128807
  • Interface resistance
  • IR-74193

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