Hydrodynamic approach to two-dimensional electron systems

BN Narozhny - La Rivista del Nuovo Cimento, 2022 - Springer
The last few years have seen an explosion of interest in hydrodynamic effects in interacting
electron systems in ultra-pure materials. One such material, graphene, is not only an …

Direct observation of vortices in an electron fluid

A Aharon-Steinberg, T Völkl, A Kaplan, AK Pariari… - Nature, 2022 - nature.com
Vortices are the hallmarks of hydrodynamic flow. Strongly interacting electrons in ultrapure
conductors can display signatures of hydrodynamic behaviour, including negative non-local …

Electronic hydrodynamics in graphene

BN Narozhny - Annals of Physics, 2019 - Elsevier
In this paper I report a pedagogical derivation of the unconventional electronic
hydrodynamics in graphene on the basis of the kinetic theory. While formally valid in the …

Hall viscosity in quantum systems with discrete symmetry: point group and lattice anisotropy

P Rao, B Bradlyn - Physical Review X, 2020 - APS
Inspired by recent experiments on graphene, we examine the nondissipative viscoelastic
response of anisotropic two-dimensional quantum systems. We pay particular attention to …

Magnetohydrodynamics in graphene: Shear and Hall viscosities

BN Narozhny, M Schütt - Physical Review B, 2019 - APS
Viscous phenomena are the hallmark of the hydrodynamic flow exhibited by Dirac fermions
in clean graphene at high enough temperatures. We report a quantitative calculation of the …

Geometric engineering of viscous magnetotransport in a two-dimensional electron system

AD Levin, GM Gusev, AS Yaroshevich, ZD Kvon… - Physical Review B, 2023 - APS
In this study, we present our experimental investigation on the magnetotransport properties
of a two-dimensional electron system in GaAs quantum wells utilizing a variety of device …

Corbino magnetoresistance in neutral graphene

V Gall, BN Narozhny, IV Gornyi - Physical Review B, 2023 - APS
We explore the magnetohydrodynamics of Dirac fermions in neutral graphene in the
Corbino geometry. Based on the fully consistent hydrodynamic description derived from a …

Viscous magnetotransport and Gurzhi effect in bilayer electron system

GM Gusev, AS Jaroshevich, AD Levin, ZD Kvon… - Physical Review B, 2021 - APS
We observe a large negative magnetoresistance and a decrease of resistivity with
increasing temperature, known as the Gurzhi effect, in a bilayer (BL) electron system formed …

Viscometry of electron fluids from symmetry

CQ Cook, A Lucas - Physical Review Letters, 2021 - APS
When electrons flow as a viscous fluid in anisotropic metals, the reduced symmetry can lead
to exotic viscosity tensors with many additional, nonstandard components. We present a …

Electronic viscosity and energy relaxation in neutral graphene

V Gall, BN Narozhny, IV Gornyi - Physical Review B, 2023 - APS
We explore hydrodynamics of Dirac fermions in neutral graphene in the Corbino geometry.
In the absence of a magnetic field, the bulk Ohmic charge flow and the hydrodynamic energy …