Triangular Lattice Gas
- 1 April 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 5 (4), 1919-1925
- https://doi.org/10.1103/physreva.5.1919
Abstract
The planar triangular lattice gas with repulsive nearest-neighbor and attractive second-nearest-neighbor interactions is solved in the Bethe-Peierls approximation. The maximum temperature of transition between disordered and ordered phases occurs at a density of one-third. All transitions are first order with a discontinuity in the order parameter at the transition. Deficiencies in the approximation are noted and discussed.Keywords
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