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Mutual synchronization of spin torque nano-oscillators through a long-range and tunable electrical coupling scheme

Author

Listed:
  • R. Lebrun

    (Unité Mixte de Physique CNRS, Thales, Université Paris-Sud, Université Paris-Saclay)

  • S. Tsunegi

    (Unité Mixte de Physique CNRS, Thales, Université Paris-Sud, Université Paris-Saclay
    Spintronics Research Center, National Institute of Advanced Industrial Science and Technology (AIST))

  • P. Bortolotti

    (Unité Mixte de Physique CNRS, Thales, Université Paris-Sud, Université Paris-Saclay)

  • H. Kubota

    (Spintronics Research Center, National Institute of Advanced Industrial Science and Technology (AIST))

  • A. S. Jenkins

    (Unité Mixte de Physique CNRS, Thales, Université Paris-Sud, Université Paris-Saclay)

  • M. Romera

    (Unité Mixte de Physique CNRS, Thales, Université Paris-Sud, Université Paris-Saclay)

  • K. Yakushiji

    (Spintronics Research Center, National Institute of Advanced Industrial Science and Technology (AIST))

  • A. Fukushima

    (Spintronics Research Center, National Institute of Advanced Industrial Science and Technology (AIST))

  • J. Grollier

    (Unité Mixte de Physique CNRS, Thales, Université Paris-Sud, Université Paris-Saclay)

  • S. Yuasa

    (Spintronics Research Center, National Institute of Advanced Industrial Science and Technology (AIST))

  • V. Cros

    (Unité Mixte de Physique CNRS, Thales, Université Paris-Sud, Université Paris-Saclay)

Abstract

The concept of spin-torque-driven high-frequency magnetization dynamics, allows the potential construction of complex networks of non-linear dynamical nanoscale systems, combining the field of spintronics and the study of non-linear systems. In the few previous demonstrations of synchronization of several spin-torque oscillators, the short-range nature of the magnetic coupling that was used has largely hampered a complete control of the synchronization process. Here we demonstrate the successful mutual synchronization of two spin-torque oscillators with a large separation distance through their long range self-emitted microwave currents. This leads to a strong improvement of both the emitted power and the linewidth. The full control of the synchronized state is achieved at the nanoscale through two active spin transfer torques, but also externally through an electrical delay line. These additional levels of control of the synchronization capability provide a new approach to develop spin-torque oscillator-based nanoscale microwave-devices going from microwave-sources to bio-inspired networks.

Suggested Citation

  • R. Lebrun & S. Tsunegi & P. Bortolotti & H. Kubota & A. S. Jenkins & M. Romera & K. Yakushiji & A. Fukushima & J. Grollier & S. Yuasa & V. Cros, 2017. "Mutual synchronization of spin torque nano-oscillators through a long-range and tunable electrical coupling scheme," Nature Communications, Nature, vol. 8(1), pages 1-7, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15825
    DOI: 10.1038/ncomms15825
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    Cited by:

    1. Rouven Dreyer & Alexander F. Schäffer & Hans G. Bauer & Niklas Liebing & Jamal Berakdar & Georg Woltersdorf, 2022. "Imaging and phase-locking of non-linear spin waves," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Steffen Wittrock & Salvatore Perna & Romain Lebrun & Katia Ho & Roberta Dutra & Ricardo Ferreira & Paolo Bortolotti & Claudio Serpico & Vincent Cros, 2024. "Non-hermiticity in spintronics: oscillation death in coupled spintronic nano-oscillators through emerging exceptional points," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    3. Miguel Romera & Philippe Talatchian & Sumito Tsunegi & Kay Yakushiji & Akio Fukushima & Hitoshi Kubota & Shinji Yuasa & Vincent Cros & Paolo Bortolotti & Maxence Ernoult & Damien Querlioz & Julie Grol, 2022. "Binding events through the mutual synchronization of spintronic nano-neurons," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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