Magnetic susceptibility and magnetic domain configuration as a function of the layer thickness in epitaxial FePd(0 0 1) thin films ordered in the L1o structure
Magnetic susceptibility and magnetic domain configuration as a function of the layer thickness in epitaxial FePd(0 0 1) thin films ordered in the L1o structure
复制标题
L1o 结构中有序外延 FePd(0 0 1) 薄膜的磁化率和磁畴结构与层厚度的函数关系
DOI：
10.1016/s0304-8853(97)00089-9
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发表时间：
1997
影响因子：
2.7
通讯作者：
A. Chamberod
中科院分区：
文献类型：
--
作者：
V. Gehanno;Y. Samson;A. Marty;B. Gilles;A. Chamberod
我们证明，高度有序的等原子FePd薄膜可以生长在L10结构使用分子束外延。这种层表现出强的垂直磁各向异性，磁各向异性与静磁能的比率远高于1（约2.2）。在FePd层的大范围厚度（5-50 nm）中，已经广泛地研究了层的磁性。磁力显微镜图像表明，随着FePd层的厚度从30 nm减小到5 nm，磁配置表现出从小（60 nm宽）高度互连的条纹到混合大条纹（600 nm）和气泡（200 nm）的复杂图案的急剧变化。新的数学发展提供了一种简单的方法，包括在计算中的磁化率和磁畴的大小与样品厚度的演变，给出两个独立的评价层的相关微磁参数。
We demonstrate that highly ordered equiatomic FePd thin layers can be grown in the L10structure using Molecular Beam Epitaxy. Such layers exhibit a strong perpendicular magnetic anisotropy, the ratio of the magnetic anisotropy to the magnetostatic energy being well above one (about 2.2). The magnetic properties of the layers have been extensively investigated throughout a large range of thickness of the FePd layer (5–50 nm). Magnetic Force Microscopy images demonstrate that, as the thickness of the FePd layer decreases from 30 to 5 nm, the magnetic configuration exhibits dramatic changes from small (60 nm width) highly interconnected stripes to a complicated pattern mixing large stripes (600 nm) and bubbles (200 nm). New mathematical developments provide an easy way to include in the calculations the evolution of both the magnetic susceptibility and the size of the magnetic domains with the sample thickness, giving two independent evaluations of the relevant micromagnetic parameters of the layer.