Andreev reflection in ferromagnet-superconductor junctions.

  title={Andreev reflection in ferromagnet-superconductor junctions.},
  author={MJ deJong and Beenakker},
  journal={Physical review letters},
  volume={74 9},
The transport properties of a ferromagnet–superconductor (FS) junction are studied in a scattering formulation. Andreev reflection at the FS interface is strongly affected by the exchange interaction in the ferromagnet. The conductance GFS of a ballistic point contact between F and S can be both larger or smaller than the value GFN with the superconductor in the normal state, depending on the ratio of the exchange and Fermi energies. If the ferromagnet contains a tunnel barrier (I), the… CONTINUE READING
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