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Current-driven writing process in antiferromagnetic Mn2Au for memory applications

Author

Listed:
  • S. Reimers

    (Johannes Gutenberg-Universität Mainz)

  • Y. Lytvynenko

    (Johannes Gutenberg-Universität Mainz
    Institute of Magnetism of the NAS of Ukraine and MES of Ukraine)

  • Y. R. Niu

    (MAX IV Laboratory)

  • E. Golias

    (MAX IV Laboratory)

  • B. Sarpi

    (Diamond Light Source, Chilton)

  • L. S. I. Veiga

    (Diamond Light Source, Chilton)

  • T. Denneulin

    (Forschungszentrum Jülich)

  • A. Kovács

    (Forschungszentrum Jülich)

  • R. E. Dunin-Borkowski

    (Forschungszentrum Jülich)

  • J. Bläßer

    (Johannes Gutenberg-Universität Mainz)

  • M. Kläui

    (Johannes Gutenberg-Universität Mainz)

  • M. Jourdan

    (Johannes Gutenberg-Universität Mainz)

Abstract

Current pulse driven Néel vector rotation in metallic antiferromagnets is one of the most promising concepts in antiferromagnetic spintronics. We show microscopically that the Néel vector of epitaxial thin films of the prototypical compound Mn2Au can be reoriented reversibly in the complete area of cross shaped device structures using single current pulses. The resulting domain pattern with aligned staggered magnetization is long term stable enabling memory applications. We achieve this switching with low heating of ≈20 K, which is promising regarding fast and efficient devices without the need for thermal activation. Current polarity dependent reversible domain wall motion demonstrates a Néel spin-orbit torque acting on the domain walls.

Suggested Citation

  • S. Reimers & Y. Lytvynenko & Y. R. Niu & E. Golias & B. Sarpi & L. S. I. Veiga & T. Denneulin & A. Kovács & R. E. Dunin-Borkowski & J. Bläßer & M. Kläui & M. Jourdan, 2023. "Current-driven writing process in antiferromagnetic Mn2Au for memory applications," Nature Communications, Nature, vol. 14(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-37569-8
    DOI: 10.1038/s41467-023-37569-8
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    References listed on IDEAS

    as
    1. S. P. Bommanaboyena & D. Backes & L. S. I. Veiga & S. S. Dhesi & Y. R. Niu & B. Sarpi & T. Denneulin & A. Kovács & T. Mashoff & O. Gomonay & J. Sinova & K. Everschor-Sitte & D. Schönke & R. M. Reeve &, 2021. "Readout of an antiferromagnetic spintronics system by strong exchange coupling of Mn2Au and Permalloy," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    2. Leandro Salemi & Marco Berritta & Ashis K. Nandy & Peter M. Oppeneer, 2019. "Orbitally dominated Rashba-Edelstein effect in noncentrosymmetric antiferromagnets," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    3. V.M.T.S. Barthem & C.V. Colin & H. Mayaffre & M.-H. Julien & D. Givord, 2013. "Revealing the properties of Mn2Au for antiferromagnetic spintronics," Nature Communications, Nature, vol. 4(1), pages 1-7, December.
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    Cited by:

    1. Y. Behovits & A. L. Chekhov & S. Yu. Bodnar & O. Gueckstock & S. Reimers & Y. Lytvynenko & Y. Skourski & M. Wolf & T. S. Seifert & O. Gomonay & M. Kläui & M. Jourdan & T. Kampfrath, 2023. "Terahertz Néel spin-orbit torques drive nonlinear magnon dynamics in antiferromagnetic Mn2Au," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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