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Spin-orbit torque switching of an antiferromagnetic metallic heterostructure

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
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.,
Project Spin-orbitronics in ferromagnets and antiferromagnets
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Original article (peer-reviewed)

Journal Nature Communications
Volume (Issue) 11(1)
Page(s) 5715 - 5715
Title of proceedings Nature Communications
DOI 10.1038/s41467-020-19511-4

Open Access

URL http://doi.org/10.1038/s41467-020-19511-4
Type of Open Access Publisher (Gold Open Access)

Abstract

AbstractThe 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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