Hybrid phase at the quantum melting of the Wigner crystal

Details Hybrid phase at the quantum melting of the Wigner crystal Hybrid phase at the quantum melting of the Wigner crystal

2004-06-24

arxiv.org/abs/cond-mat/0406600v1

Phys. Rev. Lett. 94, 046801 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.94.046801

We study the quantum melting of the two-dimensional Wigner crystal using a fixed node quantum Monte-Carlo approach. In addition to the two already known phases (Fermi liquid at large density and Wigner crystal at low density), we find a third stable phase at intermediate values of the density. The third phase has hybrid behaviors in between a liquid and a solid. This hybrid phase has the nodal structure of a Slater determinant constructed out of the bands of a triangular lattice.

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