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      Spin-dependent analysis of two-dimensional electron liquids

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      Author
      Bulutay, C.
      Tanatar, Bilal
      Date
      2002
      Source 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
      Article
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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
      Acceleration
      Calculation
      Crystallization
      Electron
      Energy
      Fourier transformation
      Liquid
      Magnetism
      Monte Carlo method
      Physics
      Polarization
      Theory
      Permalink
      http://hdl.handle.net/11693/24708
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