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| Paper IPM / Physic / 6853 |
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| Abstract: | |||||
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We study the effects of disorder scattering on the ground-state
energy of a two-dimensional electron system. Considering charged
impurity scattering within the mode-coupling approximation to the
memory function formalism, we calculate the correlation effects
using a self-consistent field approach. In a different model, we
also treat the disorder effects phenomenologically. The exchange,
correlation, and ground-state energies and the compressibility are
calculated for both models. In terms of the compressibility both
models have similar predictions in the high-density region. The
mode-coupling theory results at lower density are in better
qualitative agreement with the experimental findings.
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