Size and step effects of hysteresis in mixed magnetic films

Zhenzhen Weng; Zhi-gao Huang

doi:10.1117/12.607365

8 December 2004 Size and step effects of hysteresis in mixed magnetic films

Zhenzhen Weng, Zhi-gao Huang

Proceedings Volume 5774, Fifth International Conference on Thin Film Physics and Applications; (2004) https://doi.org/10.1117/12.607365
Event: Fifth International Conference on Thin Film Physics and Applications, 2004, Shanghai, China

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.

Citation Download Citation

Zhenzhen Weng and Zhi-gao Huang "Size and step effects of hysteresis in mixed magnetic films", Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); https://doi.org/10.1117/12.607365

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