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Nonlinear amplification of microwave signals in spin-torque oscillators

Author

Listed:
  • Keqiang Zhu

    (Chinese Academy of Sciences)

  • Mario Carpentieri

    (Politecnico di Bari)

  • Like Zhang

    (Chinese Academy of Sciences
    Wuxi University)

  • Bin Fang

    (Chinese Academy of Sciences)

  • Jialin Cai

    (Chinese Academy of Sciences)

  • Roman Verba

    (Institute of Magnetism)

  • Anna Giordano

    (University of Messina)

  • Vito Puliafito

    (Politecnico di Bari)

  • Baoshun Zhang

    (Chinese Academy of Sciences)

  • Giovanni Finocchio

    (University of Messina)

  • Zhongming Zeng

    (Chinese Academy of Sciences
    Jiangxi Institute of Nanotechnology)

Abstract

Spintronics-based microwave devices, such as oscillators and detectors, have been the subject of intensive investigation in recent years owing to the potential reductions in size and power consumption. However, only a few concepts for spintronic amplifiers have been proposed, typically requiring complex device configurations or material stacks. Here, we demonstrate a spintronic amplifier based on two-terminal magnetic tunnel junctions (MTJs) produced with CMOS-compatible material stacks that have already been used for spin-transfer torque memories. We achieve a record gain (|S11 | > 2) for input power on the order of nW (

Suggested Citation

  • Keqiang Zhu & Mario Carpentieri & Like Zhang & Bin Fang & Jialin Cai & Roman Verba & Anna Giordano & Vito Puliafito & Baoshun Zhang & Giovanni Finocchio & Zhongming Zeng, 2023. "Nonlinear amplification of microwave signals in spin-torque oscillators," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-37916-9
    DOI: 10.1038/s41467-023-37916-9
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    References listed on IDEAS

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    1. Miguel Romera & Philippe Talatchian & Sumito Tsunegi & Flavio Abreu Araujo & Vincent Cros & Paolo Bortolotti & Juan Trastoy & Kay Yakushiji & Akio Fukushima & Hitoshi Kubota & Shinji Yuasa & Maxence E, 2018. "Vowel recognition with four coupled spin-torque nano-oscillators," Nature, Nature, vol. 563(7730), pages 230-234, November.
    2. S. I. Kiselev & J. C. Sankey & I. N. Krivorotov & N. C. Emley & R. J. Schoelkopf & R. A. Buhrman & D. C. Ralph, 2003. "Microwave oscillations of a nanomagnet driven by a spin-polarized current," Nature, Nature, vol. 425(6956), pages 380-383, September.
    3. Minori Goto & Yuma Yamada & Atsushi Shimura & Tsuyoshi Suzuki & Naomichi Degawa & Takekazu Yamane & Susumu Aoki & Junichiro Urabe & Shinji Hara & Hikaru Nomura & Yoshishige Suzuki, 2021. "Uncooled sub-GHz spin bolometer driven by auto-oscillation," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
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