Electronic viscosity and energy relaxation in neutral graphene
arXiv:2206.07414 · doi:10.1103/PhysRevB.107.045413
Abstract
We explore hydrodynamics of Dirac fermions in neutral graphene in the Corbino geometry. In the absence of magnetic field, the bulk Ohmic charge flow and the hydrodynamic energy flow are decoupled. However, the energy flow does affect the overall resistance of the system through viscous dissipation and energy relaxation that has to be compensated by the work done by the current source. Solving the hydrodynamic equations, we find that local temperature and electric potential are discontinuous at the interfaces with the leads as well as the device resistance and argue that this makes Corbino geometry a feasible choice for an experimental observation of the Dirac fluid.
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Cited by in corpus (8)
- Corbino magnetoresistance in neutral graphene
- Restoring time-reversal covariance in relaxed hydrodynamics
- Shear viscosity expression for a graphene system in relaxation time approximation
- Two-dimensional hydrodynamic electron flow through periodic and random potentials
- Giant magnetoresistance in weakly disordered non-Galilean invariant conductors
- Resolving the Corbino Shockley-Ramo Paradox for Hydrodynamic Current Noise
- Non-monotonic temperature dependence of electron viscosity and crossover to high-temperature universal viscous fluid in monolayer and bilayer graphene
- Tunable viscous layers in Corbino geometry using density junctions