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dc.contributor.authorLebrun, Romain
dc.contributor.authorRoss, Andrew
dc.contributor.authorGomonay, Olena
dc.contributor.authorBender, Scott A.
dc.contributor.authorBaldrati, Lorenzo
dc.contributor.authorKronast, Florian
dc.contributor.authorQaiumzadeh, Alireza
dc.contributor.authorSinova, Jairo
dc.contributor.authorBrataas, Arne
dc.contributor.authorDuine, Rembert
dc.contributor.authorKlaui, Mathias Michael
dc.identifier.citationCommunications Physics. 2019, 2 (1), 1-7.nb_NO
dc.description.abstractAntiferromagnets possess a number of intriguing and promising properties for electronic devices, which include a vanishing net magnetic moment and thus insensitivity to large magnetic fields and characteristic terahertz frequency dynamics. However, probing the antiferromagnetic ordering is challenging without synchrotron-based facilities. Here, we determine the material parameters of the insulating iron oxide hematite, α-Fe2O3, using the surface sensitive spin-Hall magnetoresistance (SMR). Combined with a simple analytical model, we extract the antiferromagnetic anisotropies and the bulk Dzyaloshinskii-Moriya field over a wide range of temperatures and magnetic fields. Across the Morin phase transition, we show that the electrical response is dominated by the antiferromagnetic Néel vector rather than by the emergent weak magnetic moment. Our results highlight that the surface sensitivity of SMR enables access to the magnetic anisotropies of antiferromagnetic crystals, and also of thin films, where other methods to determine anisotropies such as bulk-sensitive magnetic susceptibility measurements do not provide sufficient sensitivity.nb_NO
dc.publisherSpringer Naturenb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleAnisotropies and magnetic phase transitions in insulating antiferromagnets determined by a Spin-Hall magnetoresistance probenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalCommunications Physicsnb_NO
dc.description.localcodeOpen Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
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Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal