Partial order and finite-temperature phase transitions in Potts models on irregular lattices

Details Partial order and finite-temperature phase transitions in Potts models on irregular lattices Partial order and finite-temperature phase transitions in Potts models on irregular lattices

2011-05-25

arxiv.org/abs/1105.5030v2

Phys. Rev. Lett 107, 165701(2011)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.107.165701

We evaluate the thermodynamic properties of the 4-state antiferromagnetic Potts model on the Union- Jack lattice using tensor-based numerical methods. We present strong evidence for a previously unknown, "entropy-driven," finite-temperature phase transition to a partially ordered state. From the thermodynamics of Potts models on the diced and centered diced lattices, we propose that finite-temperature transitions and partially ordered states are ubiquitous on irregular lattices.

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