1. Electron-electron interaction at decreasing $k_Fl$
- Author
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Minkov, G. M., Rut, O. E., Germanenko, A. V., Sherstobitov, A. A., Shashkin, V. I., Khrykin, O. I., and Zvonkov, B. N.
- Subjects
Condensed Matter - Disordered Systems and Neural Networks - Abstract
The contribution of the electron-electron interaction to conductivity is analyzed step by step in gated GaAs/InGaAs/GaAs heterostructures with different starting disorder. We demonstrate that the diffusion theory works down to $k_F l\simeq 1.5-2$, where $k_F$ is the Fermi quasimomentum, $l$ is the mean free paths. It is shown that the e-e interaction gives smaller contribution to the conductivity than the interference independent of the starting disorder and its role rapidly decreases with $k_Fl$ decrease., Comment: 5 pages, 6 figures
- Published
- 2002
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