Unbalanced spin accumulation induced by spin Hall effect

Seon Gu Huh, Hyun Cheol Koo, Jonghwa Eom, Hyunjung Yi, Joonyeon Chang, Suk Hee Han

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Moving electrons of different spins experience skew scattering in a two-dimensional electron gas layer and the electron deviates different direction due to the spin-dependent deflection. If spin is randomly oriented, the amount of skew scattering on both sides will be same and the Hall voltage will read zero. In this experiment, the carrier concentrations of spin up and down are unbalanced because the spin is aligned by stray field from the ferromagnet. Therefore, the voltage probe reads charge accumulation asymmetry. Spin Hall voltage is functions of the spin alignment direction and the amount of spin polarization.

Original languageEnglish
Pages (from-to)e705-e707
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 3
DOIs
Publication statusPublished - 2007 Mar
Externally publishedYes

Keywords

  • Skew scattering
  • Spin Hall effect
  • Spin accumulation
  • Spin-dependent deflection
  • Stray field

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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  • Cite this

    Huh, S. G., Koo, H. C., Eom, J., Yi, H., Chang, J., & Han, S. H. (2007). Unbalanced spin accumulation induced by spin Hall effect. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 3), e705-e707. https://doi.org/10.1016/j.jmmm.2006.10.1013