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Binding events through the mutual synchronization of spintronic nano-neurons

Author

Listed:
  • Miguel Romera

    (Université Paris-Saclay
    Universidad Complutense de Madrid
    Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Espintrónica)

  • Philippe Talatchian

    (Université Paris-Saclay
    Université Grenoble Alpes, CEA, CNRS, Grenoble INP, SPINTEC)

  • Sumito Tsunegi

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

  • Kay Yakushiji

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

  • Akio Fukushima

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

  • Hitoshi Kubota

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

  • Shinji Yuasa

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

  • Vincent Cros

    (Université Paris-Saclay)

  • Paolo Bortolotti

    (Université Paris-Saclay)

  • Maxence Ernoult

    (Université Paris-Saclay
    Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies)

  • Damien Querlioz

    (Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies)

  • Julie Grollier

    (Université Paris-Saclay)

Abstract

The brain naturally binds events from different sources in unique concepts. It is hypothesized that this process occurs through the transient mutual synchronization of neurons located in different regions of the brain when the stimulus is presented. This mechanism of ‘binding through synchronization’ can be directly implemented in neural networks composed of coupled oscillators. To do so, the oscillators must be able to mutually synchronize for the range of inputs corresponding to a single class, and otherwise remain desynchronized. Here we show that the outstanding ability of spintronic nano-oscillators to mutually synchronize and the possibility to precisely control the occurrence of mutual synchronization by tuning the oscillator frequencies over wide ranges allows pattern recognition. We demonstrate experimentally on a simple task that three spintronic nano-oscillators can bind consecutive events and thus recognize and distinguish temporal sequences. This work is a step forward in the construction of neural networks that exploit the non-linear dynamic properties of their components to perform brain-inspired computations.

Suggested Citation

  • 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.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28159-1
    DOI: 10.1038/s41467-022-28159-1
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    References listed on IDEAS

    as
    1. 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.
    2. A. Dussaux & B. Georges & J. Grollier & V. Cros & A.V. Khvalkovskiy & A. Fukushima & M. Konoto & H. Kubota & K. Yakushiji & S. Yuasa & K.A. Zvezdin & K. Ando & A. Fert, 2010. "Large microwave generation from current-driven magnetic vortex oscillators in magnetic tunnel junctions," Nature Communications, Nature, vol. 1(1), pages 1-6, December.
    3. Jacob Torrejon & Mathieu Riou & Flavio Abreu Araujo & Sumito Tsunegi & Guru Khalsa & Damien Querlioz & Paolo Bortolotti & Vincent Cros & Kay Yakushiji & Akio Fukushima & Hitoshi Kubota & Shinji Yuasa , 2017. "Neuromorphic computing with nanoscale spintronic oscillators," Nature, Nature, vol. 547(7664), pages 428-431, July.
    4. 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.
    5. F. B. Mancoff & N. D. Rizzo & B. N. Engel & S. Tehrani, 2005. "Phase-locking in double-point-contact spin-transfer devices," Nature, Nature, vol. 437(7057), pages 393-395, September.
    6. Shehzaad Kaka & Matthew R. Pufall & William H. Rippard & Thomas J. Silva & Stephen E. Russek & Jordan A. Katine, 2005. "Mutual phase-locking of microwave spin torque nano-oscillators," Nature, Nature, vol. 437(7057), pages 389-392, September.
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