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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
  Author(s): 
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
  Abstract:
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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