Rotational viscosity in spin resonance of hydrodynamic electrons
arXiv:2203.06070 · doi:10.1103/PhysRevB.106.L041407
Abstract
In novel ultra-pure materials electrons can form a viscous fluid, which is fundamentally different by its dynamics from the electron gas in ordinary conductors with significant density of defects. The shape of the non-stationary flow of such electron fluid is similar to the alternating flow of blood in large-radius arteries [J. R. Womersley, J. Physiol. 127, 552 (1955)]. The rotational viscosity effect is responsible for interconnection between the dynamics of electron spins and flow inhomogeneities. In particular, it induces the spin polarization of electrons in a curled flow via an internal spin-orbit torque acting on electron spins. Here we show that this effect in an electron fluid placed in a magnetic field leads to a correction to the ac sample impedance, which has a resonance at the Larmor frequency of electrons. In this way, via the electrically detected spin resonance the Womersley flow of an electron fluid can be visualized and the rotational viscosity can be measured.
arXiv comment6 pages, 3, figures
References in corpus (46)
- Spin Hall effect
- 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
- 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
- Viscous transport and Hall viscosity in a two-dimensional electron system
- 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
- Theory of spin hydrodynamic generation
- Vorticity induced negative nonlocal resistance in viscous two-dimensional electron system
- Ballistic and hydrodynamic magnetotransport in narrow channels
- Hydrodynamic and ballistic transport over large length scales in GaAs/AlGaAs
- Spin Coulomb drag in the two-dimensional electron liquid
- Electronic sound modes and plasmons in hydrodynamic two-dimensional metals
- Stokes paradox in electronic Fermi liquids
- Viscosity of two-dimensional electrons
- A classical mechanism for negative magnetoresistance in two-dimensional systems in the ballistic regime
- Magnetoresistance of compensated semimetals in confined geometries
- Two-dimensional electron honey: highly viscous electron fluid in which transverse magnetosonic waves can propagate
- Nonmonotonic magnetoresistance of a two-dimensional viscous electron-hole fluid in a confined geometry
- Pulsating flow and boundary layers in viscous electronic hydrodynamics
- Hall and dissipative viscosity effects on edge magnetoplasmons
- Shear sound of two-dimensional Fermi liquids
- A magnetic resonance in high-frequency viscosity of two-dimensional electrons
- Relativistic Gurzhi effect in channels of Dirac materials
- The Hall effect in ballistic flow of two-dimensional interacting particles
- Counterflows in viscous electron-hole fluid
- Alternating currents and shear waves in viscous electronics
- Spin-vorticity coupling in viscous electron fluids
- Valley and spin accumulation in ballistic and hydrodynamic channels
- Ballistic flow of two-dimensional electrons in a magnetic field
- Dynamic spin-charge coupling: spin Hall magnetoresistance in non-magnetic conductors