Nonlocal charge transport mediated by spin diffusion in the spin Hall effect regime

D. A. Abanin, A. V. Shytov, L. S. Levitov, B. I. Halperin

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A nonlocal electric response in the spin Hall regime, resulting from spin diffusion mediating charge conduction, is predicted. The spin-mediated transport stands out due to its long-range character, and can give dominant contribution to nonlocal resistance. The characteristic range of nonlocality, set by the spin diffusion length, can be large enough to allow detection of this effect in materials such as GaAs despite its small magnitude. The detection is facilitated by a characteristic nonmonotonic dependence of transresistance on the external magnetic field, exhibiting sign changes and decay.

Original languageAmerican English
Article number035304
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number3
StatePublished - Jan 5 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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