Viscous electron flow in mesoscopic two-dimensional electron gas

Abstract

We report electrical and magneto transport measurements in mesoscopic size, two-dimensional (2D) electron gas in a GaAs quantum well. Remarkably, we find that the probe configuration and sample geometry strongly affects the temperature evolution of local resistance. We attribute all transport properties to the presence of hydrodynamic effects. Experimental results confirm the theoretically predicted significance of viscous flow in mesoscopic devices.

4 pages, 4 figures

References in corpus (15)

• Negative local resistance caused by viscous electron backflow in graphene
• Electron Viscosity, Current Vortices and Negative Nonlocal Resistance in Graphene
• Hydrodynamic electron flow in high-mobility wires
• Non-local transport and the hydrodynamic shear viscosity in graphene
• Hydrodynamic description of transport in strongly correlated electron systems
• Negative magnetoresistance in viscous flow of two-dimensional electrons
• Hydrodynamic Electron Flow and Hall Viscosity
• Hydrodynamics in graphene: Linear-response transport
• Non-local transport and the Hall viscosity of 2D hydrodynamic electron liquids
• Magnetoresistance in a High Mobility Two-Dimensional Electron Gas
• Transport signatures of Hall viscosity
• Hydrodynamic theory of transport in doped graphene
• Colossal negative magnetoresistance in a 2D electron gas
• Linking Spatial Distributions of Potential and Current in Viscous Electronics
• Hydrodynamic effects in interacting Fermi electron jets

Cited by in corpus (79)

• Measuring Hall Viscosity of Graphene's Electron Fluid
• Scanning Gate Microscopy in a Viscous Electron Fluid
• Viscous transport and Hall viscosity in a two-dimensional electron system
• Geometric control of universal hydrodynamic flow in a two dimensional electron fluid
• Vorticity induced negative nonlocal resistance in viscous two-dimensional electron system
• Hydrodynamic and ballistic transport over large length scales in GaAs/AlGaAs
• Electronic hydrodynamics and the breakdown of the Wiedemann-Franz and Mott laws in interacting metals
• Viscosity of two-dimensional electrons
• Electron-phonon hydrodynamics
• Electron hydrodynamics with a polygonal Fermi surface
• Two-dimensional electron honey: highly viscous electron fluid in which transverse magnetosonic waves can propagate
• Anomalous Hydrodynamic Transport in Interacting Noncentrosymmetric Metals
• Manifestations of classical size effect and electronic viscosity in the magnetoresistance of narrow two-dimensional conductors: Theory and experiment
• Viscous magnetotransport and Gurzhi effect in bilayer electron system
• Viscometry of electron fluids from symmetry
• The Hall effect in ballistic flow of two-dimensional interacting particles
• Hydrodynamic charge transport in GaAs/AlGaAs ultrahigh-mobility two-dimensional electron gas
• Counterflows in viscous electron-hole fluid
• Superballistic electron flow through a point contact in a Ga[Al]As heterostructure
• Coherent Terahertz Radiation from a Nonlinear Oscillator of Viscous Electrons
• Hydrodynamics, viscous electron fluid, and Wiedeman-Franz law in 2D semiconductors
• Hydrodynamic and Ballistic AC transport in 2D Fermi Liquids
• Beyond Ohm's law -- Bernoulli effect and streaming in electron hydrodynamics
• Diffusion of photo-excited holes in viscous electron fluid
• Hydrodynamic effective field theories with discrete rotational symmetry
• Hall effect in Poiseuille flow of two-dimensional electron fluid
• Linking boundary conditions for kinetic and hydrodynamic description of fermion gas
• Non-linear Transport Phenomena and Current-induced Hydrodynamics in Ultra-high Mobility Two-dimensional Electron Gas
• Valley and spin accumulation in ballistic and hydrodynamic channels
• Functional dependence of the Hall viscosity-induced transverse voltage in two-dimensional Fermi liquids
• Stable Branched Electron Flow
• Quantum aspects of "hydrodynamic" transport from weak electron-impurity scattering
• Drag viscosity of metals and its connection to Coulomb drag
• Nonreciprocal electron hydrodynamics under magnetic fields: applications to nonreciprocal surface magnetoplasmons
• Geometric engineering of viscous magnetotransport in a two-dimensional electron system
• Hydrodynamics with triangular point group
• Temperature Dependence of Electron Viscosity in Superballistic GaAs Point Contacts
• Plasmonic quantum nonlinear Hall effect in noncentrosymmetric 2D materials
• Long distance electron-electron scattering detected with point contacts
• Sign of viscous magnetoresistance in electron fluids
• Current Noise of Hydrodynamic Electrons
• Critical Viscosity of a Fluctuating Superconductor
• Micromagnets dramatically enhance effects of viscous hydrodynamic flow in two-dimensional electron fluid
• Superballistic boundary conductance and hydrodynamic transport in microstructures
• Spin imaging of Poiseuille flow of viscous electronic fluid
• Rotational viscosity in spin resonance of hydrodynamic electrons
• Highly correlated two-dimensional viscous electron fluid in moderate magnetic fields
• Shear Bernstein modes in a two-dimensional electron liquid
• Giant Hall effect in the ballistic transport of two-dimensional electrons
• Driving Viscous Hydrodynamics in Bulk Electron Flow in Graphene Using Micromagnets
• Viscous hydrodynamics of excitons in van der Waals heterostructures
• Obstacle-Induced Gurzhi Effect and Hydrodynamic Electron Flow in Two-Dimensional Systems
• Hall viscosity and hydrodynamic inverse Nernst effect in graphene
• Weyl hydrodynamics in a strong magnetic field
• Probing Fermi liquid exceptional points through AC conductivity
• Interaction dominated transport in 2D conductors: from degenerate to partially-degenerate regime
• Ballistic flow of two-dimensional electrons in a magnetic field
• Hydrodynamics of the electronic Fermi liquid: a pedagogical overview
• Two-dimensional hydrodynamic electron flow through periodic and random potentials
• Giant magnetoresistance in weakly disordered non-Galilean invariant conductors
• Resistivity of non-Galilean invariant two dimensional Dirac system
• Nonequilibrium Relaxation and Odd-Even Effect in Finite-Temperature Electron Gases
• Anomalous Electronic Transport in High Mobility Corbino Rings
• Bulk and shear viscosities in multicomponent 2D electron system
• Magnetohydrodynamics and electro-electron interaction of massless Dirac fermions
• Distinguishing viscous, ballistic, and diffusive current flows in anisotropic metals
• Acoustic plasmons and isotropic short-range interaction in two-component electron liquids
• Voltage characteristics of hydrodynamic Dirac electron nozzles with supersonic flow
• 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
• Simultaneous study of acoustic and optic phonon scattering of electrons and holes in undoped $\mathrm{GaAs}$/$\mathrm{A}{\mathrm{l}}_{\mathrm{x}}\mathrm{G}{\mathrm{a}}_{1-\mathrm{x}}\mathrm{As}$ heterostructures
• Local signatures of electron-electron scattering in an electronic cavity
• Giant Shubnikov-de Haas Oscillations with V-Shaped Minima in a High-Mobility Two-Dimensional Electron Gas: Experiment and Phenomenological Model
• Two-dimensional hydrodynamic viscous electron flow in annular Corbino rings
• Electron Hydrodynamics and Bernoulli Effect in Venturi-Shaped 2D Systems
• How to accurately measure the mobility and viscosity of two-dimensional carriers?
• Interaction Induced Magnetotransport in a 2D Dirac-Heavy Hole Hybrid Band System
• Ballistic-hydrodynamic phase transition in flow of two-dimensional electrons
• Spectroscopy of Heat Transport and Violation of the Wiedemann--Franz Law in a GaAs Hydrodynamic Mesoscopic Channel