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Proceedings Paper

Size and step effects of hysteresis in mixed magnetic films
Author(s): Zhenzhen Weng; Zhi-gao Huang
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Paper Abstract

Size effect of the coercivity and step effect in the ferromagnetic/antiferromagnetic (FM/AFM) mixed magnetic films are studied by a micromagnetism and Monte Carlo methods. Step effect is found in the simulation, which can be explained by the simple mean field theory. The calculated results indicate that it is attributed to the different response of the clusters with different size and different diluted ratio of antiferromagnetic atom on the external field, which is explained by the simple mean field theory well. The dependence of the diluted ratio of ferromagnetic atom x on the coercivity Hc is also simulated. The simulated results explain the experimental facts for the mixed magnetic films well.

Paper Details

Date Published: 8 December 2004
PDF: 5 pages
Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); doi: 10.1117/12.607365
Show Author Affiliations
Zhenzhen Weng, 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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