Effects of field orientation on the driven lattice gas

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Abstract

Steady states of the driven lattice gas (DLG) on triangular, hexagonal and square lattices with the field at several fixed orientations to the principal lattice vectors were studied by Monte Carlo simulation. In most cases a strong field suppressed change to a low-temperature ordered phase. On each lattice, one field orientation that caused nonequilibrium ordering was identified. On triangular and hexagonal lattices, dependence of energy and anisotropy on field strength was studied at those orientations. Anisotropic ordering along the field developed at intermediate temperatures under weak fields. Partial ordering along the field persisted to low temperature under strong fields.

Original languageEnglish (US)
Pages (from-to)861-880
Number of pages20
JournalJournal of Statistical Physics
Volume119
Issue number3-4
DOIs
StatePublished - May 1 2005

Keywords

  • Driven lattice gas
  • Hexagonal lattice
  • Monte Carlo
  • Triangular lattice

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