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

Citation Abanin, D. A. et al. " Nonlocal charge transport mediated by spin diffusion in the spin Hall effect regime. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. 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.