Two-dimensional electron gases as non-Newtonian fluids
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1402_1_10.0022366.pdf
Description
Published version
Size
1.12 MB
Format
Adobe PDF
Checksum (MD5)
d9a0fcd36e55a79a3547f2a5eee67b31
Author(s)
Kryhin, Serhii
Levitov, Leonid
Date Issued
October 30, 2023
Journal
Low Temperature Physics
Publisher
AIP Publishing
Citation
Serhii Kryhin, Leonid Levitov; Two-dimensional electron gases as non-Newtonian fluids. Low Temp. Phys. 1 December 2023; 49 (12): 1402–1412.
Version
Final published version
Abstract
Two-dimensional electron systems offer an appealing platform to explore long-lived excitations arising due to collinear carrier scattering enabled by phase-space constraints at the Fermi surface. Recently it was found that these effects can boost excitation lifetimes over the fundamental bound set by Landau’s Fermi-liquid theory by a factor as large as (TF/T)α with α≈2. Long-lived degrees of freedom possess the capability to amplify the response to weak perturbations, producing lasting collective memory effects. This leads to non-Newtonian hydrodynamics in 2D electron fluids driven by multiple viscous modes with scale-dependent viscosity. We describe these modes as Fermi surface modulations of odd parity evolving in space and time, and discuss their implications for experimental studies of electron hydrodynamics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
10.1063/10.0022366
