Magnetic vortex wall motion driven by spin waves
Magnetic vortex wall motion driven by spin waves
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DOI：
10.1063/1.3541651
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发表时间：
2011-01
影响因子：
4
通讯作者：
S. Seo;Hyun-Woo Lee;H. Kohno;Kyoung Jin Lee
中科院分区：
文献类型：
--
作者：
S. Seo;Hyun-Woo Lee;H. Kohno;Kyoung Jin Lee
采用微磁模拟的方法研究了纳米带中自旋波驱动的磁涡壁运动。尽管涡旋壁内部具有复杂的自旋结构，但传播的自旋波可以驱动涡旋壁进入流态运动。与横向壁面相比，涡旋壁面的运动速度更快，其速度对自旋波频率的敏感性较小。自旋波的振幅在穿过畴壁时发生变化，与畴壁速度密切相关。这一特定于畴壁类型的研究为发展畴壁与自旋波相互作用的理论提供了重要的信息。
A magnetic vortex wall motion driven by propagating spin waves in a nanostrip is investigated by means of micromagnetic simulation. Propagating spin waves can drive a vortex wall into a stream motion in spite of its complex internal spin structure. Compared to the transverse wall, the vortex wall moves faster and its velocity is less sensitive to the spin wave frequency. The amplitude of spin waves changes when passing through the domain wall, closely related to the domain wall velocity. This domain-wall-type-specific study provides important information for developing the theory of the interaction between domain wall and spin waves.