Spontaneous reversal of spin chirality and competing phases in the topological magnet EuAl4

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dc.citation.articleNumber313en_US
dc.citation.journalTitleCommunications Physicsen_US
dc.citation.volumeNumber7en_US
dc.contributor.authorVibhakar, Anuradha M.en_US
dc.contributor.authorKhalyavin, Dmitry D.en_US
dc.contributor.authorOrlandi, Fabioen_US
dc.contributor.authorMoya, Jamie M.en_US
dc.contributor.authorLei, Shimingen_US
dc.contributor.authorMorosan, Emiliaen_US
dc.contributor.authorBombardi, Alessandroen_US
dc.date.accessioned2024-11-04T16:25:13Zen_US
dc.date.available2024-11-04T16:25:13Zen_US
dc.date.issued2024en_US
dc.description.abstractMaterials exhibiting a spontaneous reversal of spin chirality have the potential to drive the widespread adoption of chiral magnets in spintronic devices. Unlike the majority of chiral magnets that require the application of an external field to reverse the spin chirality, we observe the spin chirality to spontaneously reverse in the topological magnet EuAl4. Using resonant elastic x-ray scattering we demonstrate that all four magnetic phases in EuAl4 are single-k, where the first two magnetic phases are characterized by spin density wave order and the last two by helical spin order. A single spin chirality was stabilised across the 1mm2 sample, and the reversal of spin chirality occurred whilst maintaining a helical magnetic structure. At the onset of the helical magnetism, the crystal symmetry lowers to a chiral monoclinic space group, explaining the asymmetry in the chiral spin order, and establishing a mechanism by which the spin chirality could reverse via magnetostructural coupling.en_US
dc.identifier.citationVibhakar, A. M., Khalyavin, D. D., Orlandi, F., Moya, J. M., Lei, S., Morosan, E., & Bombardi, A. (2024). Spontaneous reversal of spin chirality and competing phases in the topological magnet EuAl4. Communications Physics, 7(1), 1–8. https://doi.org/10.1038/s42005-024-01802-7en_US
dc.identifier.digitals42005-024-01802-7en_US
dc.identifier.doihttps://doi.org/10.1038/s42005-024-01802-7en_US
dc.identifier.urihttps://hdl.handle.net/1911/118005en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license. Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleSpontaneous reversal of spin chirality and competing phases in the topological magnet EuAl4en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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