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arXiv · 1803.10570

Interlayer Dzyaloshinskii-Moriya interactions

Elena Y. Vedmedenko·Jon A. Arregi·Patricia Riego·Andreas Berger
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Abstract

Interfacial Dzyaloshinkii-Moriya interaction defines a rotational sense for the magnetization of two-dimensional films making it responsible for the formation of chiral magnetic structures like spin-spirals and skyrmions in those films. Here we show by means of atomistic calculations that in heterostructures magnetic layers can be additionally coupled by an interlayer Dzyaloshinskii-Moriya interaction across a spacer. We quantify this interaction in the framework of the Levy-Fert model for trilayers consisting of two ferromagnets separated by a non-magnetic spacer yielding non-trivial three-dimensional spiral states across the trilayer. This analysis enables three-dimensional tailoring of the magnetization chirality in magnetic multilayers.

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Elena Y. Vedmedenko, Jon A. Arregi, Patricia Riego, Andreas Berger. 2018-03-28. Interlayer Dzyaloshinskii-Moriya interactions. https://doi.org/10.1103/physrevlett.122.257202

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