Magnetocaloric effect in the Potts model based on the effective-field theory

R. H. M. Morais, J. P. Santos,S. Oliveira,R. G. B. Mendes,D. S. Rosa,R. M. Francisco,F. C. Sa Barreto

Physics Letters A（2022）

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摘要

•The magnetocaloric effect (MCE) is investigated for the q-state Potts model in an external magnetic field.•First-order and continuous phase transitions are obtained by the effective field theory (EFT).•Maxwell relations and the Clausius-Clapeyron equation were used to study the behavior of the thermodynamic quantities.•The MCE was studied in terms of the isothermal entropy change as a function of temperature.

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关键词

Effective-field theory,Potts model,Magnetocaloric effect,Entropy changes

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