Abstract
The coupling between a current and a domain wall is examined. In the presence of a finite current and in the absence of a potential which breaks the translational symmetry, there is a perfect transfer of angular momentum from the conduction electrons to the wall. As a result, the ground state is in uniform motion and this remains the case even when relaxation is included. This is described by, appropriately modified, Landau-Lifshitz-Gilbert equations. The results for a simple pinning model are compared with experiment.
| Original language | English (US) |
|---|---|
| Article number | 107204 |
| Journal | Physical Review Letters |
| Volume | 95 |
| Issue number | 10 |
| DOIs | |
| State | Published - Sep 2 2005 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Cite this
Barnes, S. E., & Maekawa, S. (2005). Current-spin coupling for ferromagnetic domain walls in fine wires. Physical Review Letters, 95(10), [107204]. https://doi.org/10.1103/PhysRevLett.95.107204