Analytical solution of the equation of motion for a rigid domain wall in a magnetic material with perpendicular anisotropy

Details Analytical solution of the equation of motion for a rigid domain wall in a magnetic material with perpendicular anisotropy Analytical solution of the equation of motion for a rigid domain wall in a magnetic material with perpendicular anisotropy

2008-07-16

arxiv.org/abs/0807.2604v3

Phys.Rev.B:78180412, 2008

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.78.180412

This paper reports the solution of the equation of motion for a domain wall in a magnetic material which exhibits high magneto-crystalline anisotropy. Starting from the Landau-Lifschitz-Gilbert equation for field-induced motion, we solve the equation to give an analytical expression, which specifies the domain wall position as a function of time. Taking parameters from a Co/Pt multilayer system, we find good quantitative agreement between calculated and experimentally determined wall velocities, and show that high field uniform wall motion occurs when wall rigidity is assumed.

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