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Synthetic chiral magnets promoted by the Dzyaloshinskii–Moriya interaction

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Hrabec Aleš, Luo Zhaochu, Heyderman Laura J., Gambardella Pietro,
Project Spin-orbitronics in ferromagnets and antiferromagnets
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Original article (peer-reviewed)

Journal Applied Physics Letters
Volume (Issue) 117(13)
Page(s) 130503 - 130503
Title of proceedings Applied Physics Letters
DOI 10.1063/5.0021184

Open Access

URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:34768
Type of Open Access Repository (Green Open Access)

Abstract

The ability to engineer the interactions in assemblies of nanoscale magnets is central to the development of artificial spin systems and spintronic technologies. Following the emergence of the Dzyaloshinskii–Moriya interaction (DMI) in thin film magnetism, new routes have been opened to couple the nanomagnets via strong chiral interactions, which is complementary to the established dipolar and exchange coupling mechanisms. In this Perspective, we review recent progress in the engineering of synthetic magnets coupled by the interlayer and intralayer DMI. We show how multilayer chiral magnetic structures and two-dimensional synthetic antiferromagnets, skyrmions, and artificial spin systems can be realized by simultaneous control of the DMI and magnetic anisotropy. In addition, we show that, with the combination of DMI and current-induced spin–orbit torques, field-free switching of synthetic magnetic elements is obtained as well as all-electric domain wall logic circuits.
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