Spin accumulation and resistance due to a domain wall

J. Ieda, S. Takahashi, M. Ichimura, H. Imamura, S. Maekawa

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Spin accumulation around a domain wall within a ferromagnetic nano-wire under a finite current is investigated. Equations of motion for the total magnetic moment and the spin accumulation are derived to study dynamics of the slowly varying fields. It is shown that the spin accumulation produces extra resistance as is common with the giant magnetoresistance. The excess resistance decreases as a function of the ratio of the wall width to the spin diffusion length and agrees well with recent experiments.

Original languageEnglish
Pages (from-to)2058-2060
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 3
DOIs
Publication statusPublished - 2007 Mar

Keywords

  • Domain walls
  • Magnetoresistance
  • Spin accumulation
  • Spin relaxation
  • Spin transfer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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