Spin imaging of Poiseuille flow of viscous electronic fluid
arXiv:2205.02647 · doi:10.1103/PhysRevB.106.L081113
Abstract
Recent progress in fabricating high-quality conductors with small densities of defects has initiated the studies of the viscous electron fluid and has motivated the search for the evidences of the hydrodynamic regime of electron transport. In this work we come up with the spin imaging technique allowing us to attest to the emergence of electron hydrodynamic flows. Based on numerical calculations we demonstrate that the injected electron spin density is inhomogeneous across the channel when the viscous electron fluid forms the Poiseuille flow. We also argue that the Hanle curves at different positions across the channel acquire relative phase shifts resulting from the variation of the electron drift velocity in inhomogeneous hydrodynamic flows. The studied effects can be employed to evidence and study the viscous electron fluid non-invasively.
arXiv comment5 pages, 4 figures
References in corpus (47)
- Semiconductor Spintronics
- 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
- Hydrodynamics of electrons in graphene
- Electron Viscosity, Current Vortices and Negative Nonlocal Resistance in Graphene
- Imaging viscous flow of the Dirac fluid in graphene
- Measuring Hall Viscosity of Graphene's Electron Fluid
- Visualizing Poiseuille flow of hydrodynamic electrons
- Electrical and Thermal Transport at the Planckian Bound of Dissipation in the Hydrodynamic Electron Fluid of WP2
- Higher-Than-Ballistic Conduction of Viscous Electron Flows
- Negative magnetoresistance in viscous flow of two-dimensional electrons
- Hydrodynamic Electron Flow and Hall Viscosity
- Nanosecond spin lifetimes in single- and few-layer graphene-hBN heterostructures at room temperature
- Spin transport in high quality suspended graphene devices
- Magnetoresistance due to edge spin accumulation
- Non-local transport and the Hall viscosity of 2D hydrodynamic electron liquids
- Viscous electron flow in mesoscopic two-dimensional electron gas
- Magnetoresistance in a High Mobility Two-Dimensional Electron Gas
- Minimal quantum viscosity from fundamental physical constants
- Observation of a cyclotron harmonic spike in microwave-induced resistances in ultraclean GaAs/AlGaAs quantum wells
- Viscous transport and Hall viscosity in a two-dimensional electron system
- Enhanced spin relaxation time due to electron-electron scattering in semiconductors
- 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
- Vorticity induced negative nonlocal resistance in viscous two-dimensional electron system
- Theory of spin hydrodynamic generation
- Giant microwave photoresistivity in a high-mobility quantum Hall system
- Hydrodynamic and ballistic transport over large length scales in GaAs/AlGaAs
- Electronic sound modes and plasmons in hydrodynamic two-dimensional metals
- Stokes paradox in electronic Fermi liquids
- Two-dimensional electron honey: highly viscous electron fluid in which transverse magnetosonic waves can propagate
- Pulsating flow and boundary layers in viscous electronic hydrodynamics
- Hall and dissipative viscosity effects on edge magnetoplasmons
- A magnetic resonance in high-frequency viscosity of two-dimensional electrons
- Shear sound of two-dimensional Fermi liquids
- Relativistic Gurzhi effect in channels of Dirac materials
- The Hall effect in ballistic flow of two-dimensional interacting particles
- Evidence for local spots of viscous electron flow in graphene at moderate mobility
- The photoresponse of a two-dimensional electron gas at the second harmonic of the cyclotron resonance
- Alternating currents and shear waves in viscous electronics
- Gate-Control of Anisotropic Spin Transport and Spin Helix Dynamics in a Modulation-Doped GaAs Quantum Well
- Spin-vorticity coupling in viscous electron fluids
- Valley and spin accumulation in ballistic and hydrodynamic channels
- Spin hydrodynamic generation in graphene
- Dynamic spin-charge coupling: spin Hall magnetoresistance in non-magnetic conductors