Hydrodynamic and ballistic transport over large length scales in GaAs/AlGaAs

Abstract

We study hydrodynamic and ballistic transport regimes through nonlocal resistance measurements and high-resolution kinetic simulations in a mesoscopic structure on a high-mobility two-dimensional electron system in a GaAs/AlGaAs heterostructure. We evince the existence of collective transport phenomena in both regimes and demonstrate that negative nonlocal resistances and current vortices are not exclusive to only the hydrodynamic regime. The combined experiments and simulations highlight the importance of device design, measurement schemes and one-to-one modeling of experimental devices to demarcate various transport regimes.

3 figures and supplemental material

References in corpus (28)

• Negative local resistance caused by viscous electron backflow in graphene
• Evidence for hydrodynamic electron flow in PdCoO${}_2$
• Superballistic flow of viscous electron fluid through graphene constrictions
• Electron Viscosity, Current Vortices and Negative Nonlocal Resistance in Graphene
• Imaging viscous flow of the Dirac fluid in graphene
• Hydrodynamic electron flow in high-mobility wires
• Measuring Hall Viscosity of Graphene's Electron Fluid
• Electrical and Thermal Transport at the Planckian Bound of Dissipation in the Hydrodynamic Electron Fluid of WP2
• Non-local transport and the hydrodynamic shear viscosity in graphene
• Higher-Than-Ballistic Conduction of Viscous Electron Flows
• Fluidity Onset in Graphene
• Electron hydrodynamics dilemma: whirlpools or no whirlpools
• Scanning Gate Microscopy in a Viscous Electron Fluid
• Viscous electron flow in mesoscopic two-dimensional electron gas
• Hydrodynamic-to-ballistic crossover in Dirac fluid
• Control of electron-electron interaction in graphene by proximity screening
• Vorticity induced negative nonlocal resistance in viscous two-dimensional electron system
• Modified MBE hardware and techniques and role of gallium purity for attainment of two dimensional electron gas mobility >35 x10^6 cm^2/Vs in AlGaAs/GaAs quantum wells grown by MBE
• Tomographic Dynamics and Scale-Dependent Viscosity in Two-Dimensional Electron Systems
• Hydrodynamic effects in interacting Fermi electron jets
• Particle Collisions and Negative Nonlocal Response of Ballistic Electrons
• Manifestations of classical size effect and electronic viscosity in the magnetoresistance of narrow two-dimensional conductors: Theory and experiment
• Semirelativity in Semiconductors: a Review
• Dynamo Effect and Turbulence in Hydrodynamic Weyl Metals
• Hydrodynamic and Ballistic AC transport in 2D Fermi Liquids
• Electron-avalanche amplifier based on the electronic Venturi effect
• An electron jet pump: The Venturi effect of a Fermi liquid
• Sign reversal of nonlocal response due to electron collisions

Cited by in corpus (41)

• Direct observation of vortices in an electron fluid
• Hydrodynamic approach to two-dimensional electron systems
• Geometric control of universal hydrodynamic flow in a two dimensional electron fluid
• Imaging Hydrodynamic Electrons Flowing Without Landauer-Sharvin Resistance
• Imaging the breaking of electrostatic dams in graphene for ballistic and viscous fluids
• Ratchet effect in spatially modulated bilayer graphene: Signature of hydrodynamic transport
• Spread and erase -- How electron hydrodynamics can eliminate the Landauer-Sharvin resistance
• Hydrodynamic charge transport in GaAs/AlGaAs ultrahigh-mobility two-dimensional electron gas
• Hydrodynamics, viscous electron fluid, and Wiedeman-Franz law in 2D semiconductors
• Precision measurement of electron-electron scattering in GaAs/AlGaAs using transverse magnetic focusing
• Anti-Poiseuille flow in neutral graphene
• Two-dimensional electron hydrodynamics in a random array of impenetrable obstacles: Magnetoresistivity, Hall viscosity, and the Landauer dipole
• 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
• Para-hydrodynamics from weak surface scattering in ultraclean thin flakes
• Conformal maps of viscous electron flow in the Gurzhi crossover
• Corbino magnetoresistance in neutral graphene
• Heating of inhomogeneous electron flow in the hydrodynamic regime
• Terahertz Radiation from the Dyakonov-Shur Instability of Hydrodynamic Electrons in a Corbino Geometry
• Spin and Valley Hall effects induced by asymmetric interparticle scattering
• Superballistic boundary conductance and hydrodynamic transport in microstructures
• Rotational viscosity in spin resonance of hydrodynamic electrons
• Spin imaging of Poiseuille flow of viscous electronic fluid
• Viscous flow through a finite-width slit: Boundary conditions and dissipation
• Hydrodynamics of the electronic Fermi liquid: a pedagogical overview
• Giant magnetoresistance in weakly disordered non-Galilean invariant conductors
• Weyl hydrodynamics in a strong magnetic field
• Slip electron flow in GaAs microscale constrictions
• Current vortices in hexagonal graphene quantum dots
• Anomalous Electronic Transport in High Mobility Corbino Rings
• Superballistic paradox in electron fluids: Evidence of tomographic transport
• Giant Shubnikov-de Haas Oscillations with V-Shaped Minima in a High-Mobility Two-Dimensional Electron Gas: Experiment and Phenomenological Model
• Local heat current flow in ballistic phonon transport of graphene nanoribbons
• 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
• Non-monotonic temperature dependence of electron viscosity and crossover to high-temperature universal viscous fluid in monolayer and bilayer graphene
• Two-dimensional hydrodynamic viscous electron flow in annular Corbino rings
• Multipolar Fermi Surface Deformations in Sr${}_2$RuO${}_4$ Probed by Resistivity and Sound Attenuation: A Window into Electron Viscosity and the Collision Operator
• Diffusive and hydrodynamic magnetotransport around a density perturbation in a two-dimensional electron gas
• Ballistic-to-hydrodynamic transition and collective modes for two-dimensional electron systems in magnetic field
• Ballistic-hydrodynamic phase transition in flow of two-dimensional electrons
• How to accurately measure the mobility and viscosity of two-dimensional carriers?