Research output: Contribution to journal › Article › peer-review
Nanomechanical Detection of Vortices in an Electron Fluid. / Shevyrin, Andrey A.; Bakarov, Askhat K.; Pogosov, Arthur G.
In: Physical Review Letters, Vol. 137, No. 11, 116302, 10.09.2026.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Nanomechanical Detection of Vortices in an Electron Fluid
AU - Shevyrin, Andrey A.
AU - Bakarov, Askhat K.
AU - Pogosov, Arthur G.
N1 - The work is supported by Russian Science Foundation (Grant No. 22-12-00343-Π). Transport characterization of the heterostructures is supported by the state assignment of Ministry of Science and Higher Education of the Russian Federation (Grant No. FWGW-2025-0023). The authors thank Maxim S. Aksenov, Natalya R. Vicina, Sergey V. Ishutkin, and Ekaterina V. Anishenko for providing the access to fabrication facilities and Evgeniy Yu. Zhdanov for helping with cryogenic measurements. Scanning electron microscope images are obtained at the Center for Collective Use “Nanostructures.”
PY - 2026/9/10
Y1 - 2026/9/10
N2 - Electron vortices are an expected manifestation of viscosity, yet their detection remains challenging. We introduce a nanomechanical paradigm: a vortex in a suspended resonator generates a magnetic moment that, in an in-plane field, drives vibrations via magnetic torque. Using a comparative design with a reference device where vortices are suppressed, we provide unambiguous identification of the circulating flow. We detect ballistic and hydrodynamic vortices and trace their temperature crossover. Our work establishes nanomechanics as a direct force-sensing platform for electron hydrodynamics.
AB - Electron vortices are an expected manifestation of viscosity, yet their detection remains challenging. We introduce a nanomechanical paradigm: a vortex in a suspended resonator generates a magnetic moment that, in an in-plane field, drives vibrations via magnetic torque. Using a comparative design with a reference device where vortices are suppressed, we provide unambiguous identification of the circulating flow. We detect ballistic and hydrodynamic vortices and trace their temperature crossover. Our work establishes nanomechanics as a direct force-sensing platform for electron hydrodynamics.
KW - Mechanical properties of membranes
KW - Nano-electromechanical systems
KW - Transport phenomena
KW - Micromechanical & nanomechanical oscillators
UR - https://www.scopus.com/pages/publications/105050319066
UR - https://www.mendeley.com/catalogue/db06aed4-657e-3d08-aba2-ba20ae161f3a/
U2 - 10.1103/9s99-119b
DO - 10.1103/9s99-119b
M3 - Article
VL - 137
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 11
M1 - 116302
ER -
ID: 83281877