Three-dimensional distribution of spin-polarized current inside (Cu/Co) pillar structures

J. Hamrle, T. Kimura, T. Yang, Y. Otani

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Within diffusive transport, we calculate three-dimensional current distribution inside a (Cu/Co) pillar structure, where the pillar is terminated either by an infinitely large Cu layer, or by a Cu wire with a cross-sectional area identical to that of the pillar. We study how pillar terminations (infinitely large or finite) influence the magnitudes and inhomogeneities of the spin-polarized current and electrochemical potential. We found that infinitely large Cu layers work as strong spin scatterers, increasing the magnitude of spin-polarized current inside the pillar twice and reducing spin accumulation to nearly zero. The inhomogeneities of the electrochemical potential are found to be much smaller than those of the spin-polarized current.

Original languageEnglish
Article number094434
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume71
Issue number9
DOIs
Publication statusPublished - Mar 1 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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