Spin-dependent analysis of two-dimensional electron liquids
Author
Bulutay, C.
Tanatar, Bilal
Date
2002Source Title
Physical Review B - Condensed Matter and Materials Physics
Print ISSN
0163-1829
Publisher
The American Physical Society
Volume
65
Issue
19
Pages
195116-1 - 195116-7
Language
English
Type
ArticleItem Usage Stats
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Abstract
Two-dimensional electron liquid (2D EL) at full Fermi degeneracy is revisited, giving special attention to the spin-polarization effects. First, we extend the recently proposed classical-map hypernetted-chain (CHNC) technique to the 2D EL, while preserving the simplicity of the original proposal. An efficient implementation of CHNC is given utilizing Lado's quadrature expressions for the isotropic Fourier transforms. Our results indicate that the paramagnetic phase stays to be the ground state until the Wigner crystallization density, even though the energy separation with the ferromagnetic and other partially polarized states become minute. We analyze compressibility and spin stiffness variations with respect to density and spin polarization, the latter being overlooked until now. Spin-dependent static structure factor and pair-distribution functions are computed; agreement with the available quantum Monte Carlo data persists even in the strong-coupling regime of the 2D EL.
Keywords
AccelerationCalculation
Crystallization
Electron
Energy
Fourier transformation
Liquid
Magnetism
Monte Carlo method
Physics
Polarization
Theory