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Published on: January 21, 2016
Coulomb drag induced non-local resistance in double graphene layers
Edvin G Idrisov1, Adnan Younis2, Zaur Z Alisultanov3,4
1Department of Physics, United Arab Emirates University, P.O. Box 15551, Al-Ain, United Arab Emirates. edvin.idrisov@uaeu.ac.ae.
Abstract:
We study the effect of Coulomb drag between graphene layers in presence of viscosity term. To do this, we use the simple model of Stokes equations for drift velocities in active and passive layers, known as Pogrebinskii's approach. The solution to these equations allows us to find the potential distribution, and thus the non-local drag resistance of passive layer. It is shown that in viscous regime the non-local resistance may take negative values, in contrast, the ohmic regime results in positive non-local resistance for all drag strengths. Additionally, we discuss the influence of magnetic field on the non-local drag magnetoresistance.
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