New state of the matter between the Fermi glass and the Wigner crystal in two dimensions
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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.
revtex, 4 pages, 4 figures
revtex, 4 pages, 4 figures