On the low-temperature phase of the three-state antiferromagnetic Potts model on the simple cubic lattice
arXiv:cond-mat/9611188 · doi:10.1103/PhysRevE.54.R5885
Abstract
The three-state antiferromagnetic Potts model on the simple cubic lattice is investigated using the cluster variation method in the cube and the star-cube approximations. The broken-sublattice-symmetry phase is found to be stable in the whole low-temperature region, contrary to previous results obtained using a modified cluster variation method. The tiny free energy difference between the broken-sublattice-symmetry and the permutationally-symmetric-sublattices phases is calculated in the two approximations and turns out to be smaller in the (more accurate) star-cube approximation than in the cube one.
4 pages REVTeX + 2 PostScript figures, to be published in Phys. Rev. E as a Rapid Communication
References in corpus (4)
- Cluster Variation Method, Pade` Approximants and Critical Behaviour
- Three-State Anti-ferromagnetic Potts Model in Three Dimensions: Universality and Critical Amplitudes
- ON THE LOW-TEMPERATURE ORDERING OF THE 3D ATIFERROMAGNETIC THREE-STATE POTTS MODEL
- CRITICAL EXPONENTS OF THE 3D ANTIFERROMAGNETIC THREE-STATE POTTS MODEL USING THE COHERENT-ANOMALY METHOD