• Impact of current on static and kinetic depinning fields of domain wall in ferromagnetic nanostrip

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      https://www.ias.ac.in/article/fulltext/pram/085/05/0947-0959

    • Keywords

       

      Domain wall; pinning; depinning; spin-transfer torque; spin-polarized current; Landau–Lifshitz–Gilbert equation.

    • Abstract

       

      The impact of current on static and kinetic depinning fields of a domain wall in a onedimensional ferromagnetic nanostrip is investigated analytically and numerically by solving the Landau–Lifshitz–Gilbert equation with adiabatic and non-adiabatic spin-transfer torques. The results show that in the absence of current, the static depinning field is greater than the kinetic depinning field. Both the depinning fields decrease by increasing the current applied in a direction opposite to the direction of the applied field. Both the depinning fields can also be tuned by the current to make them equal.

    • Author Affiliations

       

      R Arun1 P Sabareesan2 M Daniel1

      1. Centre for Nonlinear Dynamics, School of Physics, Bharathidasan University, Tiruchirapalli 620 024, India
      2. Centre for Nonlinear Science and Engineering, School of Electrical and Electronics Engineering, SASTRA University, Thanjavur 613 401, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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