New state of the matter between the Fermi glass and the Wigner crystal in two dimensions

Details New state of the matter between the Fermi glass and the Wigner crystal in two dimensions New state of the matter between the Fermi glass and the Wigner crystal in two dimensions

1998-12-21

arxiv.org/abs/cond-mat/9812339v1

Physics

Condensed Matter

revtex, 4 pages, 4 figures

Scientific paper

Spinless fermions with Coulomb interaction in a square disordered lattice form a new state of the matter which is nor a Fermi glass, neither a Wigner crystal for intermediate Coulomb interaction. From a numerical study of small clusters, we find that this new state occurs between the two critical carrier densities where insulator-metal-insulator transitions of a hole gas have been observed in GaAs.

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