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Surface magnetic properties of an anisotropic free surface in the semi-infinite Ising model

Author

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  • Benyoussef, A.
  • El Kenz, A.
  • Ez-Zahraouy, H.

Abstract

The influence of anisotropy on the phase transitions of a semi-infinite three-dimensional Ising model is investigated by the use of the effective field theory. The surface magnetism is examined as a function of Δ = Jy/J − 1 and α = Jx/Jy, where Jx and Jy are the nearest-neighbor exchange constants in the free surface and J in the volume. The critical values Δc, transition temperatures and phase diagrams for surface ordering are given as functions of α and Δ. The reduced magnetization curves of a surface and bulk are also studied.

Suggested Citation

  • Benyoussef, A. & El Kenz, A. & Ez-Zahraouy, H., 1993. "Surface magnetic properties of an anisotropic free surface in the semi-infinite Ising model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 193(1), pages 123-132.
    • Handle: RePEc:eee:phsmap:v:193:y:1993:i:1:p:123-132
    DOI: 10.1016/0378-4371(93)90219-T
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