论文标题

双向开关通过层间交换耦合在非对称磁性隧道连接中的辅助辅助

Bidirectional switching assisted by interlayer exchange coupling in asymmetric magnetic tunnel junctions

论文作者

de Sousa, D. J. P., Haney, P. M., Zhang, D. L., Wang, J. P., Low, Tony

论文摘要

我们研究自旋转移扭矩,层间交换耦合的电压调制以及磁各向异性对垂直磁性隧道连接(P-MTJS)的开关行为的磁反应。在不对称的P-MTJ中,层间交换耦合的线性含量依赖性使得有效的垂直方向性各向异性屏障可以降低两种电压极性。该机制显示可减少临界切换电流和有效的激活能。最后,我们分析了仅通过层间交换耦合进行切换的可能性。

We study the combined effects of spin transfer torque, voltage modulation of interlayer exchange coupling and magnetic anisotropy on the switching behavior of perpendicular magnetic tunnel junctions (p-MTJs). In asymmetric p-MTJs, a linear-in-voltage dependence of interlayer exchange coupling enables the effective perpendicular anisotropy barrier to be lowered for both voltage polarities. This mechanism is shown to reduce the critical switching current and effective activation energy. Finally, we analyze the possibility of having switching via interlayer exchange coupling only.

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