TY - JOUR
T1 - Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
AU - DuttaGupta, Samik
AU - Kurenkov, A.
AU - Tretiakov, Oleg
AU - Krishnaswamy, G.
AU - Sala, G.
AU - Krizakova, V.
AU - Maccherozzi, F.
AU - Dhesi, S. S.
AU - Gambardella, P.
AU - Fukami, S.
AU - Ohno, H.
N1 - Funding Information:
We thank C. Igarashi, T. Hirata, H. Iwanuma, and K. Goto for their technical support and Dr. J. Llandro for discussions. A portion of this work was supported by the JSPS KAKENHI 17H06511, 18KK0143, 19H05622, and Cooperative Research Projects of RIEC. O.A.T. acknowledges support by the Australian Research Council (Grant No. DP200101027), the Cooperative Research Project Program at the Research Institute of Electrical Communication, Tohoku University, and by the NCMAS 2020 grant. G.K., G.S., and P.G. acknowledge funding from the Swiss National Science Foundation (Grant No. 200020-172775). V.K. was supported by a Swiss Government Excellence Scholarship.
Publisher Copyright:
© 2020, The Author(s).
PY - 2020/12
Y1 - 2020/12
N2 - 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.
AB - 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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U2 - 10.1038/s41467-020-19511-4
DO - 10.1038/s41467-020-19511-4
M3 - Article
C2 - 33177506
AN - SCOPUS:85095808779
VL - 11
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 5715
ER -