Counterflows in viscous electron-hole fluid
| Autor: | P. S. Alekseev, Igor V. Gornyi, V. Yu. Kachorovskii, A. P. Dmitriev, Mikhail Titov, Boris Narozhny |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Theory of Condensed Matter FOS: Physical sciences 02 engineering and technology Electron hole 01 natural sciences Viscosity Condensed Matter - Strongly Correlated Electrons Electric field 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 010306 general physics Electrical conductor Condensed Matter - Statistical Mechanics Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Statistical Mechanics (cond-mat.stat-mech) Condensed Matter - Mesoscale and Nanoscale Physics Fluid Dynamics (physics.flu-dyn) Physics - Fluid Dynamics 021001 nanoscience & nanotechnology Magnetic field Quantum Gases (cond-mat.quant-gas) Charge carrier Electric current Current (fluid) 0210 nano-technology Condensed Matter - Quantum Gases |
| Zdroj: | Physical Review B, 98, 12, pp. 1-10 Physical Review B, 98, 1-10 |
| ISSN: | 2469-9950 |
| DOI: | 10.1103/physrevb.98.125111 |
| Popis: | In ultra-pure conductors, collective motion of charge carriers at relatively high temperatures may become hydrodynamic such that electronic transport may be described similarly to a viscous flow. In confined geometries (e.g., in ultra-high quality nanostructures), the resulting flow is Poiseuille-like. When subjected to a strong external magnetic field, the electric current in semimetals is pushed out of the bulk of the sample towards the edges. Moreover, we show that the interplay between viscosity and fast recombination leads to the appearance of counterflows. The edge currents possess a non-trivial spatial profile and consist of two stripe-like regions: the outer stripe carrying most of the current in the direction of the external electric field and the inner stripe with the counterflow. 10 pages, 5 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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