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Paper   IPM / Physic / 7617
School of Physics
  Title:   Self-Consistent Overhauser Model for the Pair Distribution Function of an Electron Gas at Finite Temperature
1.  R. Asgari
2.  M. Cardenas
3.  M. Polini
4.  B. Davoudi
5.  M.P. Tosi
  Status:   Published
  Journal: Solid State Commun.
  Vol.:  133
  Year:  2005
  Pages:   337-341
  Supported by:  IPM
We present calculations of the spin-averaged pair distribution function g(r) in a homogeneous gas of electrons moving in dimensionality D=3 or D=2 at finite temperature. The model involves the solution of a two-electron scattering problem via an effective potential which embodies many-body effects through a self-consistent Hartree approximation, leading to two-body wave functions to be averaged over a temperature-dependent distribution of relative momentum for electron pairs. We report illustrative numerical results for g(r) in an intermediate-coupling regime and interpret them in terms of changes of short-range order with increasing temperature.

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