Hydrodynamic charge transport in GaAs/AlGaAs ultrahigh-mobility two-dimensional electron gas
arXiv:2205.10196 · doi:10.1103/PhysRevB.106.L241302
Abstract
Viscous fluid in an ultrahigh-mobility two-dimensional electron gas (2DEG) in GaAs/AlGaAs quantum wells is systematically studied through measurements of negative magnetoresistance (NMR) and photoresistance under microwave radiation, and the data are analyzed according to recent theoretical work by e.g., Alekseev, Physical Review Letters 117,166601 (2016). Size-dependent and temperature dependent NMR are found to conform to the theoretical predictions. In particular, transport of 2DEG with relatively weak Coulomb interaction (interparticle interaction parameter r_s<1) manifests a crossover between viscous liquid and viscous gas. The size dependence of microwave induced resistance oscillations and that of the '2nd harmonic' peak indicate that 2DEG in a moderate magnetic field should be regarded as viscous fluid as well. Our results suggest that the hydrodynamic effects must be considered in order to understand semiclassical electronic transport in a clean 2DEG.
References in corpus (29)
- Negative local resistance caused by viscous electron backflow in graphene
- Evidence for hydrodynamic electron flow in PdCoO
- Superballistic flow of viscous electron fluid through graphene constrictions
- Hydrodynamic description of transport in strongly correlated electron systems
- Negative magnetoresistance in viscous flow of two-dimensional electrons
- Giant microwave photoresistance of two-dimensional electron gas
- Scanning Gate Microscopy in a Viscous Electron Fluid
- Quasiclassical negative magnetoresistance of a 2D electron gas: interplay of strong scatterers and smooth disorder
- Viscous electron flow in mesoscopic two-dimensional electron gas
- Magnetoresistance in a High Mobility Two-Dimensional Electron Gas
- A Corbino disk viscometer for 2D quantum electron liquids
- Viscous transport and Hall viscosity in a two-dimensional electron system
- Observation of a cyclotron harmonic spike in microwave-induced resistances in ultraclean GaAs/AlGaAs quantum wells
- Temperature Dependence of Microwave Photoresistance in 2D Electron Systems
- Giant negative magnetoresistance in high-mobility 2D electron systems
- Geometric control of universal hydrodynamic flow in a two dimensional electron fluid
- Colossal negative magnetoresistance in a 2D electron gas
- Magnetoresistance of a 2D electron gas caused by electron interactions in the transition from the diffusive to the ballistic regime
- Vorticity induced negative nonlocal resistance in viscous two-dimensional electron system
- Giant microwave photoresistivity in a high-mobility quantum Hall system
- Hydrodynamic and ballistic transport over large length scales in GaAs/AlGaAs
- Viscosity of two-dimensional electrons
- Magnetoresistance Induced by Rare Strong Scatterers in a High Mobility 2DEG
- Hydrodynamic Model for Conductivity in Graphene
- Two-dimensional electron honey: highly viscous electron fluid in which transverse magnetosonic waves can propagate
- Conductivity of the classical two-dimensional electron gas
- A magnetic resonance in high-frequency viscosity of two-dimensional electrons
- Effects of Electron-Electron Scattering on Electron-Beam Propagation in a Two-Dimensional Electron-Gas
- Sign of viscous magnetoresistance in electron fluids
Cited by in corpus (14)
- Non-linear Transport Phenomena and Current-induced Hydrodynamics in Ultra-high Mobility Two-dimensional Electron Gas
- Two-dimensional electron hydrodynamics in a random array of impenetrable obstacles: Magnetoresistivity, Hall viscosity, and the Landauer dipole
- Geometric engineering of viscous magnetotransport in a two-dimensional electron system
- Highly correlated two-dimensional viscous electron fluid in moderate magnetic fields
- Obstacle-Induced Gurzhi Effect and Hydrodynamic Electron Flow in Two-Dimensional Systems
- Driving Viscous Hydrodynamics in Bulk Electron Flow in Graphene Using Micromagnets
- Shear Bernstein modes in a two-dimensional electron liquid
- Bulk and shear viscosities in multicomponent 2D electron system
- Role of Coulomb interaction in the valley photogalvanic effect
- How to accurately measure the mobility and viscosity of two-dimensional carriers?
- Diffusive and hydrodynamic magnetotransport around a density perturbation in a two-dimensional electron gas
- Geometric effects in the Dyakonov-Shur theory of Teraherz photodetection
- Electron Hydrodynamics and Bernoulli Effect in Venturi-Shaped 2D Systems
- Tunable viscous layers in Corbino geometry using density junctions