Electron-electron scattering in a high purity mesoscopic conductor
- 25 November 1996
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 69 (22) , 3363-3365
- https://doi.org/10.1063/1.117307
Abstract
We have carried out measurements on the nonlinear behavior of the current–voltage characteristics of a mesoscopic cross, fabricated in a high mobility GaAs/AlGaAs two-dimensional electron gas. Our measurement show two distinct peaks, one at an electron excess energy of 3.3 meV, and a second at an excess energy of 50 meV. The first peak arises when electron-electron scattering reduces the mean free path below the dimensions of the cross. The second peak is due to electron cooling by LO phonon emission.Keywords
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