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arXiv · 2301.12516

Corbino magnetoresistance in neutral graphene

Vanessa Gall·Boris N. Narozhny·Igor V. Gornyi
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Abstract

We explore the magnetohydrodynamics of Dirac fermions in neutral graphene in the Corbino geometry. Based on the fully consistent hydrodynamic description derived from a microscopic framework and taking into account all peculiarities of graphene-specific hydrodynamics, we report the results of a comprehensive study of the interplay of viscosity, disorder-induced scattering, recombination, energy relaxation, and interface-induced dissipation. In the clean limit, magnetoresistance of a Corbino sample is determined by viscosity. Hence the Corbino geometry could be used to measure the viscosity coefficient in neutral graphene.

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Vanessa Gall, Boris N. Narozhny, Igor V. Gornyi. 2023-01-29. Corbino magnetoresistance in neutral graphene. https://doi.org/10.1103/physrevb.107.235401

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