Dynamics of domain walls in magnetic nanostrips

O. A. Tretiakov, D. Clarke, Gia Wei Chern, Ya B. Bazaliy, O. Tchernyshyov

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146 Citations (Scopus)

Abstract

We express the dynamics of domain walls in ferromagnetic nanowires in terms of collective coordinates, generalizing Thiele's steady-state results. For weak external perturbations the dynamics is dominated by a few soft modes. The general approach is illustrated on the example of a vortex wall relevant to recent experiments with flat nanowires. A two-mode approximation gives a quantitatively accurate description of both the steady viscous motion of the wall in weak magnetic fields and its oscillatory behavior in moderately high fields above the Walker breakdown.

Original languageEnglish
Article number127204
JournalPhysical review letters
Volume100
Issue number12
DOIs
Publication statusPublished - 2008 Mar 28

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Tretiakov, O. A., Clarke, D., Chern, G. W., Bazaliy, Y. B., & Tchernyshyov, O. (2008). Dynamics of domain walls in magnetic nanostrips. Physical review letters, 100(12), [127204]. https://doi.org/10.1103/PhysRevLett.100.127204