Charge transport and hydrodynamics in materials

G Varnavides, A Yacoby, C Felser… - Nature Reviews Materials, 2023 - nature.com
As high-quality single-crystal materials used in electronic devices approach the microscale
and nanoscale, charge-transport phenomena in these devices result in inhomogeneous …

Hydrodynamic approach to two-dimensional electron systems

BN Narozhny - La Rivista del Nuovo Cimento, 2022 - Springer
The last few years have seen an explosion of interest in hydrodynamic effects in interacting
electron systems in ultra-pure materials. One such material, graphene, is not only an …

Direct observation of vortices in an electron fluid

A Aharon-Steinberg, T Völkl, A Kaplan, AK Pariari… - Nature, 2022 - nature.com
Vortices are the hallmarks of hydrodynamic flow. Strongly interacting electrons in ultrapure
conductors can display signatures of hydrodynamic behaviour, including negative non-local …

Hydrodynamic electronic transport

L Fritz, T Scaffidi - Annual Review of Condensed Matter Physics, 2024 - annualreviews.org
The “flow” of electric currents and heat in standard metals is diffusive with electronic motion
randomized by impurities. However, for ultraclean metals, electrons can flow like water with …

Large- theory of critical Fermi surfaces. II. Conductivity

H Guo, AA Patel, I Esterlis, S Sachdev - Physical Review B, 2022 - APS
A Fermi surface coupled to a scalar field can be described in a 1/N expansion by choosing
the fermion-scalar Yukawa coupling to be random in the N-dimensional flavor space, but …

Hydrodynamic and Ballistic Transport over Large Length Scales in

A Gupta, JJ Heremans, G Kataria, M Chandra… - Physical Review Letters, 2021 - APS
We study hydrodynamic and ballistic transport regimes through nonlocal resistance
measurements and high-resolution kinetic simulations in a mesoscopic structure on a high …

Collective modes in interacting two-dimensional tomographic Fermi liquids

J Hofmann, S Das Sarma - Physical Review B, 2022 - APS
We develop an analytically solvable model for interacting two-dimensional Fermi liquids with
separate collisional relaxation rates for parity-odd and parity-even Fermi surface …

Fluctuation spectrum of 2+ 1d critical fermi surface and its application to optical conductivity and hydrodynamics

H Guo - arXiv preprint arXiv:2311.03458, 2023 - arxiv.org
We extend the kinetic operator formalism developed in the companion paper [H. Guo, XXX]
to study the general eigenvalues of the fluctuation normal modes. We apply the formalism to …

Para-hydrodynamics from weak surface scattering in ultraclean thin flakes

Y Wolf, A Aharon-Steinberg, B Yan, T Holder - Nature Communications, 2023 - nature.com
Electron hydrodynamics typically emerges in electron fluids with a high electron–electron
collision rate. However, new experiments with thin flakes of WTe2 have revealed that other …

Effective field theory for ersatz Fermi liquids

X Huang, A Lucas, U Mehta, M Qi - Physical Review B, 2024 - APS
We apply hydrodynamic effective field theory techniques to an ersatz Fermi liquid (FL). Our
effective theory, which captures the correlation functions of density operators at each angle …