Structural and Magnetic Properties of [Fe/Ni]N Multilayers
Structural and Magnetic Properties of [Fe/Ni]N Multilayers
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DOI：
10.1088/0256-307x/27/7/077502
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发表时间：
2010-07
影响因子：
3.5
通讯作者：
T. Jia;M. Bin;Zong-Zhi Zhang;Qing-Yuan Jin
中科院分区：
文献类型：
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作者：
T. Jia;M. Bin;Zong-Zhi Zhang;Qing-Yuan Jin
[Fe/Ni]N多层结构外延生长在单晶MgO衬底上。由于Fe和Ni的易磁化轴方向不同以及强应变，假设了大的各向异性色散。根据层状模型，由于交换耦合，Fe层和Ni层的磁化强度不能遵循各自的易磁化轴，从而使各向异性平均化。有效各向异性的减小随着周期厚度的减小而增强。因此，[Fe/Ni]N多层膜的介电常数随周期厚度的减小而减小。
[Fe/Ni]N multilayered structure grows epitaxially on the single crystalline MgO substrate. Due to the different directions of magnetic easy axes of Fe and Ni and the strong strain, large anisotropy dispersion is assumed. According to the layer model, the magnetization of Fe and Ni layers cannot follow each easy axis because of exchange coupling, and then the anisotropies are averaged out. The reduction of the effective anisotropy enhances with the decrease of periodic thickness. Thus, the coercivity of [Fe/Ni]N multilayers reduces with decreasing periodic thickness.