Current-spin coupling for ferromagnetic domain walls in fine wires

Stewart Barnes, S. Maekawa

Research output: Contribution to journalArticle

225 Citations (Scopus)

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 languageEnglish (US)
Article number107204
JournalPhysical Review Letters
Volume95
Issue number10
DOIs
StatePublished - Sep 2 2005

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domain wall
wire
conduction electrons
angular momentum
ground state
symmetry

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Current-spin coupling for ferromagnetic domain walls in fine wires. / Barnes, Stewart; Maekawa, S.

In: Physical Review Letters, Vol. 95, No. 10, 107204, 02.09.2005.

Research output: Contribution to journalArticle

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