| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1866037 | Physics Letters A | 2008 | 5 Pages |
Abstract
The magnetic properties of a ferromagnet spin-S a disordered semi-infinite system with a face-centered cubic lattice are investigated using the high-temperature series expansions technique extrapolated with Padé approximants method for Heisenberg, XY and Ising models. The reduced critical temperature of the system τc=kBTc2S(S+1)Jb is studied as function of the thickness of the film and the exchange interactions in the bulk, and within the surfaces Jb,JsJb,Js and J⊥J⊥, respectively. It is found that τcτc increases with the exchange interactions of surface. The magnetic phase diagrams (τcτc versus the dilution x) and the percolation threshold are obtained.
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Authors
R. Masrour, M. Hamedoun, A. Hourmatallah, K. Bouslykhane, N. Benzakour,