Magnetic domain wall propagation unto the percolation threshold across a pseudorectangular disordered lattice -: art. no. 257203

被引：27

作者：

Attané, JP

Samson, Y

Marty, A

Toussaint, JC

Dubois, G

Mougin, A

Jamet, JP

机构：

[1] CEA Grenoble, DRFMC, F-38054 Grenoble 9, France

[2] CNRS, Lab Louis Neel, F-38042 Grenoble, France

[3] Univ Paris 11, CNRS, UMR 8502, Phys Solides Lab, F-91405 Orsay, France

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.93.257203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The reversal process of thin FePt/Pt(001) layers with perpendicular magnetization was observed by magnetic imaging techniques. Reversal occurs through domain wall propagation across a strongly disordered rectangular lattice of linear anisotropy defects. Micromagnetic simulations of domain wall pinning allowed deriving an analytical model of the reversal process unto percolation threshold. Quantitative agreement is found between the calculated and experimental fractal dimension of the reversed domain.

引用

页数：4

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