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      Spin resolved Andreev reflection in ferromagnet-superconductor junctions with Zeeman splitting

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          Abstract

          Andreev reflection in ferromagnet-superconductor junctions is derived in a regime in which Zeeman splitting dominates the response of the superconductor to an applied magnetic field. Spin-up and spin-down Andreev reflections are shown to be resolved as voltage is increased. In the metallic limit, the transition from Andreev to tunnel conductivity in the spin-up channels has a non trivial behavior when spin polarization is increased. The conductance is asymmetric in a voltage reversal.

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          Author and article information

          Journal
          31 August 1999
          Article
          10.1209/epl/i2000-00532-1
          cond-mat/9908465
          d2ca2ae1-2d46-4a49-ac66-add3f49c1523
          History
          Custom metadata
          RevTex. 13 pages. 3 figures included
          cond-mat.supr-con

          Condensed matter
          Condensed matter

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