Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-118| Authors: | Han, Dong-Soo Lee, Kyujoon Hanke, Jan-Philipp Mokrousov, Yuriy Kim, Kyoung-Whan Yoo, Woosuk Hees, Youri L. W. van Kim, Tae-Wan Lavrijsen, Reinoud You, Chun-Yeol Swagten, Henk J. M. Jung, Myung-Hwa Kläui, Mathias |
| Title: | Long-range chiral exchange interaction in synthetic antiferromagnets |
| Online publication date: | 4-Sep-2019 |
| Year of first publication: | 2019 |
| Language: | english |
| Abstract: | The exchange interaction governs static and dynamic magnetism. This fundamental interaction comes in two flavours-symmetric and antisymmetric. the symmetric interaction leads to ferro- and antiferromagnetism, and the antisymmetric interaction has attracted significant interest owing to its major role in promoting topologically non-trivial spin textures that promise fast, energy-efficient devices. so far, the antisymmetric exchange interaction has been found to be rather short ranged and limited to a single magnetic layer. here we report a long-range antisymmetric interlayer exchange interaction in perpendicularly magnetized synthetic antiferromagnets with parallel and antiparallel magnetization alignments. asymmetric hysteresis loops under an in-plane field reveal a unidirectional and chiral nature of this interaction, which results in canted magnetic structures. we explain our results by considering spin-orbit coupling combined with reduced symmetry in multilayers. our discovery of a long-range chiral interaction provides an additional handle to engineer magnetic structures and could enable three-dimensional topological structures. |
| DDC: | 530 Physik 530 Physics |
| Institution: | Johannes Gutenberg-Universität Mainz |
| Department: | FB 08 Physik, Mathematik u. Informatik |
| Place: | Mainz |
| ROR: | https://ror.org/023b0x485 |
| DOI: | http://doi.org/10.25358/openscience-118 |
| URN: | urn:nbn:de:hebis:77-publ-592254 |
| Version: | Accepted version |
| Publication type: | Zeitschriftenaufsatz |
| License: | In Copyright |
| Information on rights of use: | https://rightsstatements.org/vocab/InC/1.0/ |
| Journal: | Nature materials 18 7 |
| Pages or article number: | 703 708 |
| Publisher: | Nature Publishing Group |
| Publisher place: | Basingstoke |
| Issue date: | 2019 |
| ISSN: | 1476-4660 1476-1122 |
| Publisher URL: | http://dx.doi.org/10.1038/s41563-019-0370-z |
| Publisher DOI: | 10.1038/s41563-019-0370-z |
| Appears in collections: | JGU-Publikationen |
