GROUND-STATE ENERGY OF A 2-DIMENSIONAL WIGNER CRYSTAL OF FINITE-DENSITY AND THICKNESS

Authors
WETTSTEIN A GROSHEV A
Citation
A. Wettstein et A. Groshev, GROUND-STATE ENERGY OF A 2-DIMENSIONAL WIGNER CRYSTAL OF FINITE-DENSITY AND THICKNESS, Physical review. B, Condensed matter, 50(3), 1994, pp. 1636-1644
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
3
Year of publication
1994
Pages
1636 - 1644
Database
ISI
SICI code
0163-1829(1994)50:3<1636:GEOA2W>2.0.ZU;2-T
Abstract
A Wigner-crystal variational wave function accounting for both the Lan dau-level mixing and finite thickness of a two-dimensional (2D) system of particles is investigated. The energy is obtained analytically wit hin an approximation scheme similar to that of Maki and Zotos and nume rically using the variational Monte Carlo method. Comparison with the energy of the translationally invariant Laughlin liquid at nu = 1 show s that our wave function has lower energy for r(s) greater than or equ al to 12 which is achieved easily in 2D hole systems.