Corpus ID: 237416434

Commensurate-incommensurate transition in the chiral Ashkin-Teller model

@inproceedings{Nyckees2021CommensurateincommensurateTI,
  title={Commensurate-incommensurate transition in the chiral Ashkin-Teller model},
  author={Samuel Nyckees and Fr{\'e}d{\'e}ric Mila},
  year={2021}
}
We investigate the classical chiral Ashkin-Teller model on a square lattice with the corner transfer matrix renormalisation group (CTMRG) algorithm. We show that the melting of the period-4 phase in the presence of a chiral perturbation takes different forms depending on the coefficient of the fourspin term in the Ashkin-Teller model. Close to the clock limit of two decoupled Ising models, the system undergoes a two-step commensurate-incommensurate transition as soon as the chirality is… Expand

References

Exactly solved models in statistical mechanics
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