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Spin-Polarized Current and Spin-Transfer Torque in Magnetic Multilayers

  • John Slonczewski

We expose the theory of quantized spin-polarized electron transport perpendicular to the plane of a magnetic multilayer with non-collinear magnetization vectors. The dependence of resistance and current-driven torque on relative angle between 2 magnetic moments of a multilayer pillar are derived. Spacers of both metallic and insulating tunnel-barrier types are considered. The classical Landau-Lifshitz equation describes the dynamics of the magnetization created by spintransfer torque.

Keywords

Fermi Surface Magnetic Tunnel Junction Spin Channel Spin Accumulation Remanent State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2008

Authors and Affiliations

  • John Slonczewski
    • 1
  1. 1.IBM Watson Research CenterYorktown HeightsUSA

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