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VOLUME 94 | ISSUE 6 | PAGE 481
Thermoelectric properties of the interacting two dimensional electron gas in the diffusion regime
V. T. Dolgopolov+, A. Gold

+Institute of Solid State Physics RAD, 142432 Chernogolovka, Russia
*Centre d'Elaboration de Materiaux et d'Etudes Structurales (CEMES/CNRS)
×Universit Paul Sabatier, 31055 Toulouse, France

We demonstrate that kinetic coefficients related to thermoelectric properties of the two dimensional electron gas in the diffusive regime are strongly influenced by electron-electron interaction. As an example we consider the thermoelectric coefficients of the diluted two-dimensional electron gas in Si(100) MOSFET's in the presence of charged-impurity scattering. We find that the screening anomaly at q=2k F, also responsible for Friedel oscillations, leads at low electron densities to a large change in the thermoelectric coefficient for the thermopower.

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