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Sequence of current pulses for depinning magnetic domain walls

机译:用于固定磁畴壁的电流脉冲序列

摘要

A method and structure for depinning a domain wall that is in spatial confinement by a pinning potential to within a local region of a magnetic device. At least one current pulse applied to the domain has a pulse length sufficiently close to a precession period of the domain wall motion and the current pulses are separated by a pulse interval sufficiently close to the precession period such that: the at least one current pulse causes a depinning of the domain wall such that the domain wall escapes the spatial confinement; and each current pulse has an amplitude less than the minimum amplitude of a direct current that would cause the depinning if the direct current were applied to the domain wall instead of the at least one current pulse. The pulse length and pulse interval may be in a range of 25% to 75% of the precession period.
机译:一种用于将通过钉扎电位而在空间上受限的畴壁钉扎在磁性装置的局部区域内的方法和结构。施加到畴上的至少一个电流脉冲具有足够接近畴壁运动的进动周期的脉冲长度,并且电流脉冲被足够接近进动周期的脉冲间隔分开,使得:至少一个电流脉冲引起固定畴壁,使畴壁摆脱空间限制;并且每个电流脉冲的幅度小于直流电流的最小幅度,如果将直流电流而不是至少一个电流脉冲施加到畴壁上,则该最小幅度将引起脱钉。脉冲长度和脉冲间隔可以在进动周期的25%至75%的范围内。

著录项

  • 公开/公告号US7760535B2

    专利类型

  • 公开/公告日2010-07-20

    原文格式PDF

  • 申请/专利权人 STUART PARKIN;LUC THOMAS;

    申请/专利号US20080124306

  • 发明设计人 STUART PARKIN;LUC THOMAS;

    申请日2008-05-21

  • 分类号G11C19;

  • 国家 US

  • 入库时间 2022-08-21 18:50:54

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