Micromagnetic calculation of spin transfer torque in Co/Cu multilayer nanowires
Micromagnetic calculation of spin transfer torque in Co/Cu multilayer nanowires
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DOI：
10.1063/1.3562924
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发表时间：
2011-03
影响因子：
3.2
通讯作者：
S. Hernández;Liwen Tan;B. Stadler;R. Victora
中科院分区：
文献类型：
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作者：
S. Hernández;Liwen Tan;B. Stadler;R. Victora
提出了一种计算多层铁磁/非磁双层结构中包含界面散射效应的自旋转移矩的方法。使用这种方法，由六个磁性层的结构上的微磁学分析进行了比较，电沉积的Co/Cu多层纳米线的电气测量。如果假设其中一层是磁固定的，则与实验结果吻合得很好。一个阵列的16根线，每6 FM/NM双层组成，也进行了微磁性建模，并进行了比较，以类似的实验测量。这两个结果都证实，包括广泛分布的导线导致不太均匀的开关机制。
An approach for calculating spin transfer torque including interfacial scattering effects in structures consisting of multiple ferromagnet/nonmagnet (FM/NM) bilayers was developed. Using this approach, a micromagnetic analysis on structures consisting of six magnetic layers was compared to electrical measurements on electrodeposited Co/Cu multilayered nanowires. Good agreement with experiment was achieved if it was assumed that one of the layers is magnetically fixed. An array of 16 wires, each consisting of 6 FM/NM bilayers, was also micromagnetically modeled and compared to a similar experimental measurement. Both results confirm that including a wide distribution of wires results in a less uniform switching mechanism.