Tuning the stability and the skyrmion Hall effect in magnetic skyrmions by adjusting their exchange strengths with magnetic disks

Tuning the stability and the skyrmion Hall effect in magnetic skyrmions by adjusting their exchange strengths with magnetic disks
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通过调整磁性斯格明子与磁盘的交换强度来调节磁性斯格明子的稳定性和斯格明子霍尔效应

DOI:
10.1016/j.jmmm.2017.08.095
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发表时间:
2017-09
影响因子:
2.7
通讯作者:
Ding H F
Ding H F
中科院分区:
材料科学3区
文献类型:
--
作者:
Sun L;Wu H Z;Miao B F;Wu D;Ding H F

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磁Skyrmion具有体积小、拓扑保护和超低电流密度等优点,是未来信息技术的重要候选材料,但其窄相图和Skyrmion Hall效应阻碍了其高速运动,限制了其应用。在这项工作中,我们研究了Dzyaloshinskiii-Moriya相互作用诱导的磁skyrmion交换耦合的磁性纳米磁盘利用微磁学模拟。我们发现,所产生的skyrmion的稳定性和skyrmion霍尔效应可以有效地调整与耦合强度,从而打开空间,以优化基于skyrmion的设备的性能。
Magnetic skyrmion is a promising candidate for the future information technology due to its small size, topological protection and the ultralow current density needed to displace it. The applications, however, are currently limited by its narrow phase diagram and the skyrmion Hall effect which prevents the skyrmion motion at high speed. In this work, we study the Dzyaloshinskii-Moriya interaction induced magnetic skyrmion that exchange coupled with magnetic nano-disks utilizing the micromagnetic simulation. We find that the stability and the skyrmion Hall effect of the created skyrmion can be tuned effectively with the coupling strength, thus opens the space to optimize the performance of the skyrmion based devices.
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发表时间: --
期刊: Nature
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