Hydrodynamic electron transport in graphene Hall-bar devices

Songci Li, A. V. Andreev, Alex Levchenko

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We consider hydrodynamic electron transport in the Hall-bar geometry. The theory is developed for systems with non-Galilean-invariant electron liquids. We show that inhomogeneity of the electron density induced by long-range disorder and gating leads to mixing between the hydrodynamic transport mode and transport relative to the electron liquid. For graphene systems near charge neutrality, these effects lead to strong coupling of the hydrodynamic flow to charge transport. As a result, the effective electrical conductivity of the system may significantly exceed the intrinsic conductivity of the electron liquid. We obtain analytic expressions for the thermoelectric transport coefficients of the system as a function of density in the full crossover region between clean and disorder-dominated regimes.

Original languageEnglish
Article number155307
JournalPhysical Review B
Issue number15
Publication statusPublished - 15 Apr 2022


Dive into the research topics of 'Hydrodynamic electron transport in graphene Hall-bar devices'. Together they form a unique fingerprint.

Cite this