Loghman Jamilpanah
Proposing magnetoimpedance effect for neuromorphic computing
Jamilpanah, Loghman; Chiolerio, Alessandro; Crepaldi, Marco; Adamatzky, Andrew; Mohseni, Majid
Authors
Alessandro Chiolerio
Marco Crepaldi
Andrew Adamatzky Andrew.Adamatzky@uwe.ac.uk
Professor
Majid Mohseni
Abstract
Oscillation of physical parameters in materials can result in a peak signal in the frequency spectrum of the voltage measured from the materials. This spectrum and its amplitude/frequency tunability, through the application of bias voltage or current, can be used to perform neuron-like cognitive tasks. Magnetic materials, after achieving broad distribution for data storage applications in classical Von Neumann computer architectures, are under intense investigation for their neuromorphic computing capabilities. A recent successful demonstration regards magnetisation oscillation in magnetic thin films by spin transfer or spin orbit torques accompanied by magnetoresistance (MR) effect that can give a voltage peak in the frequency spectrum of voltage with bias current dependence of both peak frequency and amplitude. Here we use classical magnetoimpedance (MI) effect in a magnetic wire to produce such a peak and manipulate its frequency and amplitude by means of the bias voltage. We applied a noise signal to a magnetic wire with high magnetic permeability and owing to the frequency dependence of the magnetic permeability we got frequency dependent impedance with a peak at the maximum permeability. Frequency dependence of the MI effect results in different changes in the voltage amplitude at each frequency when a bias voltage is applied and therefore a shift in the peak position and amplitude can be obtained. The presented method and material provide optimal features in structural simplicity, low-frequency operation (tens of MHz-order) and high robustness at different environmental conditions. Our universal approach can be applied to any system with frequency dependent bias responses.
Citation
Jamilpanah, L., Chiolerio, A., Crepaldi, M., Adamatzky, A., & Mohseni, M. (2023). Proposing magnetoimpedance effect for neuromorphic computing. Scientific Reports, 13(1), Article 8635. https://doi.org/10.1038/s41598-023-35876-0
Journal Article Type | Article |
---|---|
Acceptance Date | May 25, 2023 |
Online Publication Date | May 27, 2023 |
Publication Date | May 27, 2023 |
Deposit Date | Jun 6, 2023 |
Publicly Available Date | Jun 7, 2023 |
Journal | Scientific Reports |
Electronic ISSN | 2045-2322 |
Publisher | Nature Research (part of Springer Nature) |
Peer Reviewed | Peer Reviewed |
Volume | 13 |
Issue | 1 |
Article Number | 8635 |
DOI | https://doi.org/10.1038/s41598-023-35876-0 |
Keywords | Applied physics; Electronics; photonics; device physics; Materials for devices |
Public URL | https://uwe-repository.worktribe.com/output/10835789 |
Publisher URL | https://www.nature.com/articles/s41598-023-35876-0 |
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Proposing magnetoimpedance effect for neuromorphic computing
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Licence
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
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