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Phase diagram of a modified Ashkin-Teller model

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  • Pawlicki, P.
  • Rogiers, J.

Abstract

We add a term to the original Ashkin-Teller Hamiltonian in order to reduce the degeneracy. It is shoen that a certain class of terms all lead to the same Hamiltonian. The phase diagram of the isotropic model is discussed in the framework of mean field theory. It exhibits a wealth of critical phenomena.

Suggested Citation

  • Pawlicki, P. & Rogiers, J., 1995. "Phase diagram of a modified Ashkin-Teller model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 214(2), pages 277-286.
    • Handle: RePEc:eee:phsmap:v:214:y:1995:i:2:p:277-286
    DOI: 10.1016/0378-4371(94)00273-V
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    Cited by:

    1. Pawlicki, P. & Kamieniarz, G. & DeĢ§bski, L., 1997. "Monte Carlo analysis of the extended Ashkin-Teller model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 242(1), pages 290-298.
    2. Pawlicki, P. & Musial, G. & Kamieniarz, G. & Rogiers, J., 1997. "Mean field renormalization group study of a modified Ashkin-Teller model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 242(1), pages 281-289.

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