Аннотация
We report nonlocal electrical measurements in a mesoscopic size two-dimensional (2D) electron gas in a GaAs quantum well in a hydrodynamic regime. Viscous electric flow is expected to be dominant when electron-electron collisions occur more often than the impurity or phonon scattering events. We observe a negative nonlocal resistance and attribute it to the formation of whirlpools in the electron flow. We use the different nonlocal transport geometries and compare the results with a theory demonstrating the significance of hydrodynamics in mesoscopic samples.
Язык оригинала | английский |
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Номер статьи | 245308 |
Число страниц | 7 |
Журнал | Physical Review B |
Том | 95 |
Номер выпуска | 24 |
DOI | |
Состояние | Опубликовано - 25 июн. 2018 |