Nonlocal charge transport mediated by spin diffusion in the spin Hall effect regime
Name
Abanin-2009-Nonlocal charge tran.pdf
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Author(s)
Halperin, B. I.
Shytov, A. V.
Abanin, Dmitry A.
Levitov, Leonid
Date Issued
January 2009
Journal
Physical Review B
Publisher
American Physical Society
Citation
Abanin, D. A. et al. “Nonlocal charge transport mediated by spin diffusion in the spin Hall effect regime.” Physical Review B 79.3 (2009): 035304. © 2009 The American Physical Society
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevB.79.035304
