Localized precessional mode of domain wall controlled by magnetic field and dc current
Localized precessional mode of domain wall controlled by magnetic field and dc current
复制标题
DOI：
10.7567/apex.8.023003
复制
发表时间：
2015-02
影响因子：
2.3
通讯作者：
R. Hiramatsu;Kab-Jin Kim;T. Taniguchi;Takayuki Tono;T. Moriyama;S. Fukami;M. Yamanouchi;H. Ohno;Y. Nakatani;T. Ono
中科院分区：
文献类型：
--
作者：
R. Hiramatsu;Kab-Jin Kim;T. Taniguchi;Takayuki Tono;T. Moriyama;S. Fukami;M. Yamanouchi;H. Ohno;Y. Nakatani;T. Ono
我们提出了 Co/Ni 纳米线中局域磁畴壁 (DW) 振荡器的证据。研究发现，通过同时施加大于脱钉场的高磁场和小于阈值电流的直流电流，DW 被局域化。一维模型和微磁模拟表明局域 DW 处于进动模式。我们的结果表明，通过适当调整磁场和直流电流可以实现局部磁 DW 振荡器。
We present evidence of a localized magnetic domain-wall (DW) oscillator in Co/Ni nanowires. It is found that a DW is localized by the simultaneous application of a high magnetic field larger than the depinning field and a dc current smaller than the threshold current. A one-dimensional model and micromagnetic simulation reveal that the localized DW is in a precessional mode. Our results suggest that a localized magnetic DW oscillator can be realized by appropriately adjusting the magnetic field and dc current.