相邻自旋阀纳米轨道中磁畴壁的耦合和诱导脱钉
Coupling and induced depinning of magnetic domain walls in adjacent spin valve nanotracks
摘要：
相邻纳米轨道中的磁畴壁（DW）之间的静磁相互作用已被示出产生强的DW间耦合和相互钉扎。在本文中，我们已经使用相邻的自旋阀纳米轨道的电气测量，以遵循相互作用的DW的位置。我们发现，DWs之间的静磁相互作用的原因，不仅相互钉扎，到现在为止观察到的，但一个旅行DW也可以诱导DWs在附近的轨道脱钉。这些效应可能对一些提出的高密度磁性器件（例如，跑道存储器、DW逻辑电路或基于DW的MRAM）具有重大意义。
英文摘要：
The magnetostatic interaction between magnetic domain walls (DWs) in adjacent nanotracks has been shown to produce strong inter-DW coupling and mutual pinning. In this paper, we have used electrical measurements of adjacent spin-valve nanotracks to follow the positions of interacting DWs. We show that the magnetostatic interaction between DWs causes not only mutual pinning, as observed till now, but that a travelling DW can also induce the depinning of DWs in near-by tracks. These effects may have great implications for some proposed high density magnetic devices (e.g. racetrack memory, DW logic circuits, or DW-based MRAM).
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