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Ionic liquid gating control of RKKY interaction in FeCoB/Ru/FeCoB and (Pt/Co)2/Ru/(Co/Pt)2 multilayers

Author

Listed:
  • Qu Yang

    (Xi’an Jiaotong University)

  • Lei Wang

    (Xi’an Jiaotong University)

  • Ziyao Zhou

    (Xi’an Jiaotong University)

  • Liqian Wang

    (Xi’an Jiaotong University)

  • Yijun Zhang

    (Xi’an Jiaotong University)

  • Shishun Zhao

    (Xi’an Jiaotong University)

  • Guohua Dong

    (Xi’an Jiaotong University)

  • Yuxin Cheng

    (Xi’an Jiaotong University)

  • Tai Min

    (Xi’an Jiaotong University)

  • Zhongqiang Hu

    (Xi’an Jiaotong University)

  • Wei Chen

    (Argonne National Laboratory
    The University of Chicago)

  • Ke Xia

    (Beijing Normal University
    Hunan Normal University)

  • Ming Liu

    (Xi’an Jiaotong University)

Abstract

To overcome the fundamental challenge of the weak natural response of antiferromagnetic materials under a magnetic field, voltage manipulation of antiferromagnetic interaction is developed to realize ultrafast, high-density, and power efficient antiferromagnetic spintronics. Here, we report a low voltage modulation of Ruderman–Kittel–Kasuya–Yosida (RKKY) interaction via ionic liquid gating in synthetic antiferromagnetic multilayers of FeCoB/Ru/FeCoB and (Pt/Co)2/Ru/(Co/Pt)2. At room temperature, the distinct voltage control of transition between antiferromagnetic and ferromagnetic ordering is realized and up to 80% of perpendicular magnetic moments manage to switch with a small-applied voltage bias of 2.5 V. We related this ionic liquid gating-induced RKKY interaction modification to the disturbance of itinerant electrons inside synthetic antiferromagnetic heterostructure and the corresponding change of its Fermi level. Voltage tuning of RKKY interaction may enable the next generation of switchable spintronics between antiferromagnetic and ferromagnetic modes with both fundamental and practical perspectives.

Suggested Citation

  • Qu Yang & Lei Wang & Ziyao Zhou & Liqian Wang & Yijun Zhang & Shishun Zhao & Guohua Dong & Yuxin Cheng & Tai Min & Zhongqiang Hu & Wei Chen & Ke Xia & Ming Liu, 2018. "Ionic liquid gating control of RKKY interaction in FeCoB/Ru/FeCoB and (Pt/Co)2/Ru/(Co/Pt)2 multilayers," Nature Communications, Nature, vol. 9(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03356-z
    DOI: 10.1038/s41467-018-03356-z
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    Cited by:

    1. Di Wang & Ruifeng Tang & Huai Lin & Long Liu & Nuo Xu & Yan Sun & Xuefeng Zhao & Ziwei Wang & Dandan Wang & Zhihong Mai & Yongjian Zhou & Nan Gao & Cheng Song & Lijun Zhu & Tom Wu & Ming Liu & Guozhon, 2023. "Spintronic leaky-integrate-fire spiking neurons with self-reset and winner-takes-all for neuromorphic computing," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    2. M. Usama Hasan & Alexander E. Kossak & Geoffrey S. D. Beach, 2023. "Large exchange bias enhancement and control of ferromagnetic energy landscape by solid-state hydrogen gating," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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