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Fluctuation-induced first-order phase transition in an anisotropic planar model of N2 on graphite

Physical Review Letters, ISSN: 0031-9007, Vol: 48, Issue: 3, Page: 181-184
1982
  • 130
    Citations
  • 0
    Usage
  • 6
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    130
    • Citation Indexes
      130
  • Captures
    6

Article Description

Monte Carlo simulations are used to show that the orientational ordering transition of planar quadrupoles on a triangular lattice is first order. The orientational ground state is a herringbone structure, and the transition lies in the universality class of a (n=3, d=2) Heisenberg model with face-oriented cubic anisotropy. The Monte Carlo results are related to recent low-energy electron-diffraction studies of N2 on graphite. Domainwall motion and the applicability of this model to herringbone phases of liquid crystals are also discussed. © 1982 The American Physical Society.

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