Current-spin coupling for ferromagnetic domain walls in fine wires

S. E. Barnes, S. Maekawa

Research output: Contribution to journalArticlepeer-review

236 Scopus citations


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 languageEnglish (US)
Article number107204
JournalPhysical Review Letters
Issue number10
StatePublished - Sep 2 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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