Two-dimensional hydrodynamic viscous electron flow in annular Corbino rings

[2405.17588] Two-dimensional hydrodynamic viscous electron flow in annular Corbino rings Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Condensed Matter > Mesoscale and Nanoscale Physics arXiv:2405.17588 (cond-mat) [Submitted on 27 May 2024 ( v1 ), last revised 11 Jun 2024 (this version, v2)] Title: Two-dimensional hydrodynamic viscous electron flow in annular Corbino rings Authors: Sujatha Vijayakrishnan , Z. Berkson-Korenberg , J. Mainville , L. W. Engel , M. P. Lilly , K. W. West , L. N. Pfeiffer , G. Gervais View a PDF of the paper titled Two-dimensional hydrodynamic viscous electron flow in annular Corbino rings, by Sujatha Vijayakrishnan and 6 other authors View PDF HTML (experimental) Abstract: The concept of fluidic viscosity is ubiquitous in our everyday life and for it to arise the fluidic medium must necessarily form a continuum where macroscopic properties can emerge. While a powerful concept for tangible liquids, hydrodynamic manifestation of collective flow in electronic systems such as two-dimensional electron gases (2DEGs) has only been shown recently to occur in graphene and GaAs/AlGaAs. Here, we present nonlocal electronic transport measurements in concentric annular rings formed in high-mobility GaAs/AlGaAs 2DEGs and the resulting data strongly suggest that viscous hydrodynamic flow can occur far away from the source-drain current region. Our conclusion of viscous electronic transport is further corroborated by simulations of the Navier-Stokes equations that are found to be in agreement with our measurements below 1K temperature. Most importantly, our work emphasizes the key role played by viscosity via electron-electron (e-e) interaction when hydrodynamic transport is restricted radially, and for which a priori should not have played a major role. Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ; Strongly Correlated Electrons (cond-mat.str-el) Report number: Phys. Rev. Research 7, L022029, 2025 Cite as: arXiv:2405.17588 [cond-mat.mes-hall] (or arXiv:2405.17588v2 [cond-mat.mes-hall] for this version) https://doi.org/10.48550/arXiv.2405.17588 Focus to learn more arXiv-issued DOI via DataCite Related DOI : https://doi.org/10.1103/PhysRevResearch.7.L022029 Focus to learn more DOI(s) linking to related resources Submission history From: Guillaume Gervais [ view email ] [v1] Mon, 27 May 2024 18:43:42 UTC (4,102 KB) [v2] Tue, 11 Jun 2024 00:48:36 UTC (4,100 KB) Full-text links: Access Paper: View a PDF of the paper titled Two-dimensional hydrodynamic viscous electron flow in annular Corbino rings, by Sujatha Vijayakrishnan and 6 other authors View PDF HTML (experimental) TeX Source view license Current browse context: cond-mat.mes-hall < prev | next > new | recent | 2024-05 Change to browse by: cond-mat cond-mat.str-el References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... 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