Spin-transport in multi-terminal normal metal-ferromagnet systems with non-collinear magnetizations

A. Brataas, Y. V. Nazarov, G. E.W. Bauer

Research output: Contribution to journalArticlepeer-review

242 Citations (Scopus)

Abstract

A theory of spin-transport in hybrid normal metal-ferromagnetic electronic circuits is developed, taking into account non-collinear spin-accumulation. Spin-transport through resistive elements is described by 4 conductance parameters. Microscopic expression for these conductances are derived in terms of scattering matrices and explicitly calculated for simple models. The circuit theory is applied to 2-terminal and 3-terminal devices attached to ferromagnetic reservoirs.

Original languageEnglish
Pages (from-to)99-110
Number of pages12
JournalEuropean Physical Journal B
Volume22
Issue number1
DOIs
Publication statusPublished - 2001 Jul 1

Keywords

  • 72.10.-d Theory of electronic transport; scattering mechanisms
  • 72.10.Bg General formulation of transport theory
  • 75.70.-i Magnetic properties of thin films, surfaces, and interfaces
  • 75.70.Pa Giant magnetoresistance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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