Properties of the two-dimensional electron gas

Ground stare properties of the two-dimensional electron gas are studied in the deformable jellium model. The calculations are made within the self-con sistent Hartree-Fock approximation. The phase transition from plane wave so lutions to the corrugated state (Wigner like transition) is analysed for tw o different crystallographic symmetries, A comparison of the results in the cases studied is presented. The behaviour of the energy curve is studied f or a wide range of densities. Our calculations of the melting point are wit hin an order of magnitude of experimental data. (C) 1999 Elsevier Science B .V. All rights reserved.