# Magnetodrag in hydrodynamic regime: effects of magnetoplasmon resonance and Hall viscosity

## TL;DR

This paper investigates how magnetoplasmon resonance and Hall viscosity influence magnetodrag in hydrodynamic electron liquids within double-layer systems, revealing new mechanisms of interlayer momentum transfer under magnetic fields.

## Contribution

It introduces the role of Hall viscosity in magnetodrag and explores its impact on temperature dependence in high-mobility, strongly correlated electron systems.

## Key findings

- Hall viscosity modifies magnetodrag behavior.
- Magnetoplasmon resonance affects interlayer Coulomb scattering.
- Viscous flows contribute significantly to transresistance.

## Abstract

In this work we study magnetotransport properties in electronic double layers of strongly correlated electron liquids. For sufficiently clean high-mobility samples, the high-temperature regime of transport in these systems can be described in pure hydrodynamic terms. We concentrate on the magnetic field dependence of longitudinal drag effect mediated by the interlayer Coulomb scattering and identify several mechanisms of transresistance which is caused by viscous flows, magnetoplasmon resonance, and dissipative thermal fluxes. In particular, we elucidate how Hall viscosity enters magnetodrag and modifies its temperature dependence in the magnetic field.