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Updated: Jan 27, 2026

A Micropatterning Assay for Measuring Cell Chirality
Published on: March 11, 2022
Chirally coupled nanomagnets
Zhaochu Luo1,2, Trong Phuong Dao3,2,4, Aleš Hrabec3,2,4
1Laboratory for Mesoscopic Systems, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland. zhaochu.luo@psi.ch laura.heyderman@psi.ch pietro.gambardella@mat.ethz.ch.
Abstract:
Magnetically coupled nanomagnets have multiple applications in nonvolatile memories, logic gates, and sensors. The most effective couplings have been found to occur between the magnetic layers in a vertical stack. We achieved strong coupling of laterally adjacent nanomagnets using the interfacial Dzyaloshinskii-Moriya interaction. This coupling is mediated by chiral domain walls between out-of-plane and in-plane magnetic regions and dominates the behavior of nanomagnets below a critical size. We used this concept to realize lateral exchange bias, field-free current-induced switching between multistate magnetic configurations as well as synthetic antiferromagnets, skyrmions, and artificial spin ices covering a broad range of length scales and topologies. Our work provides a platform to design arrays of correlated nanomagnets and to achieve all-electric control of planar logic gates and memory devices.
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