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Domain wall displacement triggered by an AC current below threshold

Gen Tatara·Eiji Saitoh·Masahiko Ichimura·Hiroshi Kohno
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Abstract

It is theoretically demonstrated that a displacement of a pinned domain wall, typically of order of $μ$m, 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.

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Gen Tatara, Eiji Saitoh, Masahiko Ichimura, Hiroshi Kohno. 2004-11-11. Domain wall displacement triggered by an AC current below threshold. https://doi.org/10.1063/1.1944902

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