Angle-Resolved Spectroscopy of Electron-Electron Scattering in a 2D System

Abstract

Electron-beam propagation experiments have been used to determine the energy and angle dependence of electron-electron (ee) scattering a two-dimensional electron gas (2DEG) in a very direct manner by a new spectroscopy method. The experimental results are in good agreement with recent theories and provide direct evidence for the differences between ee-scattering in a 2DEG as compared with 3D systems. Most conspicuous is the increased importance of small-angle scattering in a 2D system, resulting in a reduced (but energy-dependent) broadening of the electron beam.

4 pages, 4 figures

References in corpus (2)

• Low-Temperature Saturation of the Dephasing Time and Effects of Microwave Radiation on Open Quantum Dots
• Effects of Electron-Electron Scattering on Electron-Beam Propagation in a Two-Dimensional Electron-Gas

Cited by in corpus (5)

• Spatially probed electron-electron scattering in a two-dimensional electron gas
• Fate of electron beam in graphene: Coulomb relaxation or plasma instability?
• Relaxation of high-energy quasiparticle distributions: electron-electron scattering in a two-dimensional electron gas
• Electron-beam propagation in a two-dimensional electron gas
• Enlarged magnetic focusing radius of photoinduced ballistic currents