Domain-Wall Motion in Ferromagnetic Nanowires Driven by Arbitrary Time-Dependent Fields: An Exact Result

Arseni Goussev, J. M. Robbins, and Valeriy Slastikov
Phys. Rev. Lett. 104, 147202 – Published 6 April 2010

Abstract

We address the dynamics of magnetic domain walls in ferromagnetic nanowires under the influence of external time-dependent magnetic fields. We report a new exact spatiotemporal solution of the Landau-Lifshitz-Gilbert equation for the case of soft ferromagnetic wires and nanostructures with uniaxial anisotropy. The solution holds for applied fields with arbitrary strength and time dependence. We further extend this solution to applied fields slowly varying in space and to multiple domain walls.

  • Figure
  • Received 15 February 2010

DOI:https://doi.org/10.1103/PhysRevLett.104.147202

©2010 American Physical Society

Authors & Affiliations

Arseni Goussev, J. M. Robbins, and Valeriy Slastikov

  • School of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, United Kingdom

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Issue

Vol. 104, Iss. 14 — 9 April 2010

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