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arXiv · 0707.3765

Exchange shift of stripe domains in antiferromagnetically coupled multilayers

N. S. Kiselev·I. E. Dragunov·U. K. Roessler·A. N. Bogdanov
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Abstract

Antiferromagnetically coupled multilayers with perpendicular anisotropy, as [CoPt]/Ru, Co/Ir, Fe/Au, display ferromagnetic stripe phases as the ground states. It is theoretically shown that the antiferromagnetic interlayer exchange causes a relative shift of domains in adjacent layers. This ``exchange shift'' is responsible for several recently observed effects: an anomalous broadening of domain walls, the formation of so-called ``tiger-tail'' patterns, and a ``mixed state'' of antiferromagnetic and ferromagnetic domains in [CoPt]/Ru multilayers. The derived analitical relations between the values of the shift and the strength of antiferromagnetic coupling provide an effective method for a quantitative determination of the interlayer exchange interactions.

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N. S. Kiselev, I. E. Dragunov, U. K. Roessler, A. N. Bogdanov. 2007-07-25. Exchange shift of stripe domains in antiferromagnetically coupled multilayers. https://doi.org/10.1063/1.2793626

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