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Spin-orbit torque switching of an antiferromagnetic metallic heterostructure

The ability to represent information using an antiferromagnetic material is attractive for future antiferromagnetic spintronic devices. Previous studies have focussed on the utilization of antiferromagnetic materials with biaxial magnetic anisotropy for electrical manipulation. A practical realizati...

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Autores principales: DuttaGupta, Samik, Kurenkov, A., Tretiakov, Oleg A., Krishnaswamy, G., Sala, G., Krizakova, V., Maccherozzi, F., Dhesi, S. S., Gambardella, P., Fukami, S., Ohno, H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7658218/
https://www.ncbi.nlm.nih.gov/pubmed/33177506
http://dx.doi.org/10.1038/s41467-020-19511-4
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author DuttaGupta, Samik
Kurenkov, A.
Tretiakov, Oleg A.
Krishnaswamy, G.
Sala, G.
Krizakova, V.
Maccherozzi, F.
Dhesi, S. S.
Gambardella, P.
Fukami, S.
Ohno, H.
author_facet DuttaGupta, Samik
Kurenkov, A.
Tretiakov, Oleg A.
Krishnaswamy, G.
Sala, G.
Krizakova, V.
Maccherozzi, F.
Dhesi, S. S.
Gambardella, P.
Fukami, S.
Ohno, H.
author_sort DuttaGupta, Samik
collection PubMed
description The ability to represent information using an antiferromagnetic material is attractive for future antiferromagnetic spintronic devices. Previous studies have focussed on the utilization of antiferromagnetic materials with biaxial magnetic anisotropy for electrical manipulation. A practical realization of these antiferromagnetic devices is limited by the requirement of material-specific constraints. Here, we demonstrate current-induced switching in a polycrystalline PtMn/Pt metallic heterostructure. A comparison of electrical transport measurements in PtMn with and without the Pt layer, corroborated by x-ray imaging, reveals reversible switching of the thermally-stable antiferromagnetic Néel vector by spin-orbit torques. The presented results demonstrate the potential of polycrystalline metals for antiferromagnetic spintronics.
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spelling pubmed-76582182020-11-17 Spin-orbit torque switching of an antiferromagnetic metallic heterostructure DuttaGupta, Samik Kurenkov, A. Tretiakov, Oleg A. Krishnaswamy, G. Sala, G. Krizakova, V. Maccherozzi, F. Dhesi, S. S. Gambardella, P. Fukami, S. Ohno, H. Nat Commun Article The ability to represent information using an antiferromagnetic material is attractive for future antiferromagnetic spintronic devices. Previous studies have focussed on the utilization of antiferromagnetic materials with biaxial magnetic anisotropy for electrical manipulation. A practical realization of these antiferromagnetic devices is limited by the requirement of material-specific constraints. Here, we demonstrate current-induced switching in a polycrystalline PtMn/Pt metallic heterostructure. A comparison of electrical transport measurements in PtMn with and without the Pt layer, corroborated by x-ray imaging, reveals reversible switching of the thermally-stable antiferromagnetic Néel vector by spin-orbit torques. The presented results demonstrate the potential of polycrystalline metals for antiferromagnetic spintronics. Nature Publishing Group UK 2020-11-11 /pmc/articles/PMC7658218/ /pubmed/33177506 http://dx.doi.org/10.1038/s41467-020-19511-4 Text en © The Author(s) 2020 Open 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 http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
DuttaGupta, Samik
Kurenkov, A.
Tretiakov, Oleg A.
Krishnaswamy, G.
Sala, G.
Krizakova, V.
Maccherozzi, F.
Dhesi, S. S.
Gambardella, P.
Fukami, S.
Ohno, H.
Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
title Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
title_full Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
title_fullStr Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
title_full_unstemmed Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
title_short Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
title_sort spin-orbit torque switching of an antiferromagnetic metallic heterostructure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7658218/
https://www.ncbi.nlm.nih.gov/pubmed/33177506
http://dx.doi.org/10.1038/s41467-020-19511-4
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