Abstract
A simplified model for the energy of the magnetization of a thin ferromagnetic film gives rise to a version of the theory of Ginzburg-Landau vortices for sphere-valued maps. In particular, we have the development of vortices as a certain parameter tends to 0. The dynamics of the magnetization are ruled by the Landau-Lifshitz-Gilbert equation, which combines characteristic properties of a nonlinear Schrödinger equation and a gradient flow. This paper studies the motion of the vortex centers under this evolution equation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 843-888 |
| Number of pages | 46 |
| Journal | Archive For Rational Mechanics And Analysis |
| Volume | 199 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2011 |
Bibliographical note
Funding Information:Part of this research was carried out while the authors enjoyed the hospitality of the Hausdorff Research Institute for Mathematics in Bonn. M atthias K urzke was partially supported by DFG SFB 611; D aniel S pirn was partially supported by NSF grant DMS-0707714.
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