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Spin-orbit torque switching of an antiferromagnetic metallic heterostructure

Author

Listed:
  • Samik DuttaGupta

    (Tohoku University
    Tohoku University
    Tohoku University)

  • A. Kurenkov

    (Tohoku University
    Tohoku University
    Tohoku University)

  • Oleg A. Tretiakov

    (The University of New South Wales)

  • G. Krishnaswamy

    (ETH Zurich)

  • G. Sala

    (ETH Zurich)

  • V. Krizakova

    (ETH Zurich)

  • F. Maccherozzi

    (Diamond Light Source, Chilton)

  • S. S. Dhesi

    (Diamond Light Source, Chilton)

  • P. Gambardella

    (ETH Zurich)

  • S. Fukami

    (Tohoku University
    Tohoku University
    Tohoku University
    Tohoku University)

  • H. Ohno

    (Tohoku University
    Tohoku University
    Tohoku University
    Tohoku University)

Abstract

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.

Suggested Citation

  • Samik DuttaGupta & A. Kurenkov & Oleg A. Tretiakov & G. Krishnaswamy & G. Sala & V. Krizakova & F. Maccherozzi & S. S. Dhesi & P. Gambardella & S. Fukami & H. Ohno, 2020. "Spin-orbit torque switching of an antiferromagnetic metallic heterostructure," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19511-4
    DOI: 10.1038/s41467-020-19511-4
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    Cited by:

    1. Lijun Zhu & Daniel C. Ralph, 2023. "Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Sihao Deng & Olena Gomonay & Jie Chen & Gerda Fischer & Lunhua He & Cong Wang & Qingzhen Huang & Feiran Shen & Zhijian Tan & Rui Zhou & Ze Hu & Libor Šmejkal & Jairo Sinova & Wolfgang Wernsdorfer & Ch, 2024. "Phase transitions associated with magnetic-field induced topological orbital momenta in a non-collinear antiferromagnet," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    3. Hidetoshi Masuda & Takeshi Seki & Jun-ichiro Ohe & Yoichi Nii & Hiroto Masuda & Koki Takanashi & Yoshinori Onose, 2024. "Room temperature chirality switching and detection in a helimagnetic MnAu2 thin film," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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