Study of the special point in the surface phase diagram of a semi-infinite Ising ferromagnet

T. Kaneyoshi and S. Shin

Physica A: Statistical Mechanics and its Applications, 1998, vol. 260, issue 3, 455-466

Abstract: The phase diagrams of the semi-infinite Ising ferromagnet with decorated magnetic (spin-S) and nonmagnetic atoms on the surface are investigated within the framework of the effective-field theory. In particular, the critical properties of the special point in the surface phase diagram are examined numerically by changing the coupling constants, the single-ion anisotropy constant D on the spin-S (S>12) atom, the value of S and the concentration p of magnetic atoms. We find many characteristic features in the behaviour, such as the phenomenon depending on whether S is a half-integer or an integer.

Keywords: Surface magnetism; Ising model; Specific point (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:260:y:1998:i:3:p:455-466

DOI: 10.1016/S0378-4371(98)00312-4

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