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

A. V. Yanovsky·H. Predel·H. Buhmann·R. N. Gurzhi·A. N. Kalinenko·A. I. Kopeliovich·L. W. Molenkamp
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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.

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A. V. Yanovsky, H. Predel, H. Buhmann, R. N. Gurzhi, A. N. Kalinenko, A. I. Kopeliovich, L. W. Molenkamp. 2000-09-01. Angle-Resolved Spectroscopy of Electron-Electron Scattering in a 2D System. https://doi.org/10.1209/epl%2Fi2001-00578-y

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