Domain-wall displacement triggered by an ac current below threshold
Domain-wall displacement triggered by an ac current below threshold
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DOI：
10.1063/1.1944902
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发表时间：
2004-11
影响因子：
4
通讯作者：
G. Tatara;E. Saitoh;M. Ichimura;H. Kohno
中科院分区：
文献类型：
--
作者：
G. Tatara;E. Saitoh;M. Ichimura;H. Kohno
理论上证明了低于阈值的交流电流可以驱动钉扎畴壁产生μm量级的位移。这里的要点是，如果频率被调谐为接近钉扎频率，则由低电流引起的钉扎中心周围的有限运动被共振显著增强，如最近的实验所证明的。
It is theoretically demonstrated that a displacement of a pinned domain wall, typically of order of μm, can be driven by use of an ac current which is below threshold value. The point here is that finite motion around the pinning center by a low current is enhanced significantly by the resonance if the frequency is tuned close to the pinning frequency as demonstrated by recent experiment.