Taubert, D. and Schinner, G. J. and Tranitz, H. P. and Wegscheider, W. and Tomaras, C. and Kehrein, S. and Ludwig, S. (2010) Electron-avalanche amplifier based on the electronic Venturi effect. PHYSICAL REVIEW B, 82 (16): 161416. ISSN 1098-0121,
Full text not available from this repository.Abstract
Scattering of otherwise ballistic electrons far from equilibrium is investigated in a cold two-dimensional electron system. The interaction between excited electrons and the degenerate Fermi liquid induces a positive charge in a nanoscale region which would be negatively charged for diffusive transport at local thermal equilibrium. In a three-terminal device we observe avalanche amplification of electrical current, resulting in a situation comparable to the Venturi effect in hydrodynamics. Numerical calculations using a random-phase approximation are in agreement with our data and suggest Coulomb interaction as the dominant scattering mechanism.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PHONON EMISSION; GAS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Jul 2020 06:24 |
| Last Modified: | 08 Jul 2020 06:24 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24004 |
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