Magnetic domain wall propagation unto the percolation threshold across a pseudorectangular disordered lattice.
Magnetic domain wall propagation unto the percolation threshold across a pseudorectangular disordered lattice.
复制标题
磁畴壁穿过伪矩形无序晶格传播到渗流阈值。
DOI：
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发表时间：
2004
影响因子：
8.6
通讯作者：
Jamet Jp
中科院分区：
文献类型：
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作者：
J. Attané;Y. Samson;A. Marty;J. Toussaint;G. Dubois;A. Mougin;Jamet Jp
利用磁成像技术观察了垂直磁化的FePt/Pt（001）薄层的反转过程。反转发生通过畴壁传播在一个强无序的矩形晶格的线性各向异性缺陷。畴壁钉钉的微磁模拟可以推导出渗透阈值反转过程的解析模型。计算结果与实验结果的分形维数基本一致。
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.