The particle-like behaviour of magnetic skyrmions is exploited to perform a fundamental neuromorphic computing operation: the weighted summation of synaptic signals. The use of skyrmions enables a compact and energy-efficient implementation that could pave the way for neuromorphic spintronic components that mimic the efficiency of biological systems.
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References
Grollier, J. et al. Neuromorphic spintronics. Nat. Electron. 3, 360–370 (2020). A review article that presents the opportunities, recent advances and challenges in the use of nanoscale spintronic devices for neuromorphic computing.
Fert, A., Reyren, N. & Cros, V. Magnetic skyrmions: advances in physics and potential applications. Nat. Rev. Mater. 2, 17031 (2017). A review article that highlights the potential of magnetic skyrmions for storage and computing applications.
Bhattacharya, D. et al. Creation and annihilation of non-volatile fixed magnetic skyrmions using voltage control of magnetic anisotropy. Nat. Electron. 3, 539–545 (2020). This article demonstrates the non-volatile nucleation and annihilation of magnetic skyrmions using gate voltages.
da Câmara Santa Clara Gomes, T. et al. Control of the magnetic anisotropy in multirepeat Pt/Co/Al heterostructures using magnetoionic gating. Phys. Rev. Appl. 21, 024010 (2024). This paper demonstrates non-volatile and reversible tuning of magnetic properties in magnetic multilayers, similar to those used in this study.
Chen, S. et al. All-electrical skyrmionic magnetic tunnel junction. Nature 627, 522–527 (2024). An article presenting high-signal detection of skyrmions in magnetic tunnel junctions through the TMR effect.
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This is a summary of: da Câmara Santa Clara Gomes, T. et al. Neuromorphic weighted sums with magnetic skyrmions. Nat. Electron. https://doi.org/10.1038/s41928-024-01303-z (2025).
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Magnetic skyrmions achieve weighted summations in a scalable structure. Nat Electron 8, 202–203 (2025). https://doi.org/10.1038/s41928-025-01348-8
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DOI: https://doi.org/10.1038/s41928-025-01348-8
