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Non-local transport and the hydrodynamic shear viscosity in graphene | | Iacopo Torre
; Andrea Tomadin
; Andre K. Geim
; Marco Polini
; | | Date: |
3 Aug 2015 | | Abstract: | Motivated by recent experimental progress in preparing encapsulated graphene
sheets with ultra-high mobilities up to room temperature, we present a
theoretical study of dc transport in doped graphene in the hydrodynamic regime.
By using the continuity and Navier-Stokes equations, we demonstrate
analytically that measurements of non-local resistances in multi-terminal Hall
bar devices can be used to extract the hydrodynamic shear viscosity of the
two-dimensional (2D) electron liquid in graphene. We also discuss how to probe
the viscosity-dominated hydrodynamic transport regime by scanning probe
potentiometry and magnetometry. Our approach enables measurements of the
viscosity of any 2D electron liquid in the hydrodynamic transport regime. | | Source: | arXiv, 1508.0363 | | Services: | Forum | Review | PDF | Favorites | |
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