Abstract
Electron-electron scattering rates between isolated two-dimensional electron gases separated by a thin barrier have been measured at low temperatures in GaAs/AlGaAs double quantum well structures. Separate electrical connection to the two electron systems allows the injection of current into one and the detection of a small drag-induced voltage across the other. The drag voltage is a direct measure of the interwell momentum relaxation rate. Measurements of this rate suggest that two processes contribute to the interactions, simple Coulomb scattering and a longer-range process, possibly due to acoustic phonons.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 446-450 |
| Number of pages | 5 |
| Journal | Surface Science |
| Volume | 263 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Feb 19 1992 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
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