Monte Carlo study of the spin- 1 2 Ising system with antiferromagnetic surface on a ferromagnetic material

A Monte Carlo (MC) simulation has been used to study the magnetic properties of an antiferromagnetic surface which is coupled ferromagnetically to a ferromagnetic layer. The influence of different exchange interactions on the phase diagram of the surface has been investigated. We have found that in...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2009-03, Vol.321 (6), p.635-639
Main Authors: Belmamoun, Y., Ez-Zahraouy, H., Kerouad, M.
Format: Article
Language:English
Subjects:
Antiferromagnetic
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Critical-point effects, specific heats, short-range order
Exact sciences and technology
Ferromagnetic
Ising model
Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Monte Carlo simulation
Numerical simulation studies
Physics
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Summary:A Monte Carlo (MC) simulation has been used to study the magnetic properties of an antiferromagnetic surface which is coupled ferromagnetically to a ferromagnetic layer. The influence of different exchange interactions on the phase diagram of the surface has been investigated. We have found that in the ordered phase, depending on the values of the exchange interactions, the antiferromagnetic surface can change to ferromagnetic or ferrimagnetic phases. Furthermore, in the case of a bilayer surface, the layering antiferromagnetic–ferromagnetic or ferrimagnetic transitions occur.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2008.10.033