First-principles calculation of the intrinsic spin-orbit torque in a heavy-metal/ferromagnet bilayer

ORAL

Abstract

We describe the implementation of spin-torque calculations using the Landauer-Büttiker non-equilibrium Green’s function (NEGF) formalism within the tight-binding LMTO method [1]. This approach is applied to study the intrinsic spin torque in a ballistic Co/Pt bilayer. We consider the contributions from both the Fermi sea and the bias window and analyze the numerical convergence of the results.

*Supported by NSF DMR-1609776.

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Presenters

  • Kirill Belashchenko

    • Department of Physics and Astronomy, University of Nebraska-Lincoln
    • University of Nebraska
    • Physics, Univ of Nebraska - Lincoln
    • Department of Physics, Univ of Nebraska - Lincoln
    • Department of Physics and Astronomy, Univ of Nebraska - Lincoln

Authors

  • Kirill Belashchenko

    • Department of Physics and Astronomy, University of Nebraska-Lincoln
    • University of Nebraska
    • Physics, Univ of Nebraska - Lincoln
    • Department of Physics, Univ of Nebraska - Lincoln
    • Department of Physics and Astronomy, Univ of Nebraska - Lincoln

  • Alexey Kovalev

    • Department of Physics and Astronomy, University of Nebraska-Lincoln
    • Department of Physics and Astronomy, Univ of Nebraska - Lincoln
    • Univ of Nebraska - Lincoln
    • Physics, Univ of Nebraska - Lincoln
    • University of Nebraska-Lincoln

  • Mark van Schilfgaarde

    • King's College London
    • Physics, King's College London