Phase diagram of the low-density two-dimensional homogeneous electron gas.

  title={Phase diagram of the low-density two-dimensional homogeneous electron gas.},
  author={N. Drummond and R. Needs},
  journal={Physical review letters},
  volume={102 12},
  • N. Drummond, R. Needs
  • Published 2009
  • Physics, Medicine
  • Physical review letters
  • We use quantum Monte Carlo methods to calculate the zero-temperature phase diagram of the two-dimensional homogeneous electron gas. We find a transition from a paramagnetic fluid to an antiferromagnetic triangular Wigner crystal at density parameter r(s)=31(1) a.u. and a transition to a ferromagnetic crystal at r(s)=38(5) a.u. The fully spin-polarized fluid is never stable. We search for, but do not find, the ferromagnetic "hybrid" phase proposed by H. Falakshahi and X. Waintal [Phys. Rev. Lett… CONTINUE READING
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