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Proceedings Paper

Effects of the next-nearest-neighbor interaction on the phase transition of magnetic multilayers
Author(s): Liqin Jiang; Qian Feng; Zhi-gao Huang
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Paper Abstract

Based on Ising model, the effects of nearest and next-nearest neighbor interactions on the magnetic properties of films with BCC structure have been studied by an improved 4×4 transfer matrix method. The dependence of the phase transition temperature TCon both the ratio of surface coupling to bulk one Js/JBand the next-nearest coupling to nearest one b and the size of the system are studied. It is found that there exists a multicritical value Js/JB (JC) at which the phase transition temperature TCat the surface is the same as that in the body. The dependence of JCon the value of bfor different number of surface layers is also studied. The calculated results are well consistent with the experimental facts.

Paper Details

Date Published: 8 December 2004
PDF: 4 pages
Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); doi: 10.1117/12.607366
Show Author Affiliations
Liqin Jiang, Fujian Normal Univ. (China)
Qian Feng, Fujian Normal Univ. (China)
Zhi-gao Huang, Fujian Normal Univ. (China)
Nanjing Univ. (China)

Published in SPIE Proceedings Vol. 5774:
Fifth International Conference on Thin Film Physics and Applications
Junhao Chu; Zongsheng Lai; Lianwei Wang; Shaohui Xu, Editor(s)

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