Version 1
: Received: 13 March 2024 / Approved: 14 March 2024 / Online: 14 March 2024 (09:36:07 CET)
How to cite:
Cruz, C.S.; Caso, D.; Aliev, F.G. Artificial Neuron Based on the Bloch-Point Domain Wall in Ferromagnetic Nanowires. Preprints2024, 2024030827. https://doi.org/10.20944/preprints202403.0827.v1
Cruz, C.S.; Caso, D.; Aliev, F.G. Artificial Neuron Based on the Bloch-Point Domain Wall in Ferromagnetic Nanowires. Preprints 2024, 2024030827. https://doi.org/10.20944/preprints202403.0827.v1
Cruz, C.S.; Caso, D.; Aliev, F.G. Artificial Neuron Based on the Bloch-Point Domain Wall in Ferromagnetic Nanowires. Preprints2024, 2024030827. https://doi.org/10.20944/preprints202403.0827.v1
APA Style
Cruz, C.S., Caso, D., & Aliev, F.G. (2024). Artificial Neuron Based on the Bloch-Point Domain Wall in Ferromagnetic Nanowires. Preprints. https://doi.org/10.20944/preprints202403.0827.v1
Chicago/Turabian Style
Cruz, C.S., Diego Caso and Farkhad G. Aliev. 2024 "Artificial Neuron Based on the Bloch-Point Domain Wall in Ferromagnetic Nanowires" Preprints. https://doi.org/10.20944/preprints202403.0827.v1
Abstract
Nanomagnetism and spintronics are currently active areas of research, with one of the main goals being the creation of low-energy-consuming magnetic memories based on nanomagnet switching. These types of devices could also be implemented in neuromorphic computing by crafting artificial neurons (ANs) that emulate the characteristics of biological neurons, through the implementation of neuron models such as the widely used leaky integrate-and-fire (LIF) with a refractory period. In this study, we have carried out numerical simulations of a 120 nm diameter, 250 nm length ferromagnetic nanowire (NW) with the aim of exploring the design of an artificial neuron based on the creation and destruction of a Bloch-point domain wall. To replicate signal integration, we applied pulsed trains of spin-currents to the opposite faces of the ferromagnetic NW. These pulsed currents (previously studied only in the continuous form) are responsible for inducing transitions between the stable single vortex (SV) state to the metastable Bloch point domain wall (BP-DW) state. To ensure the system exhibits the leak and refractory properties, the NW was placed in an homogeneous magnetic field of the order of mT in the axial direction. The suggested configuration fulfills the requirements and characteristics of a biological neuron, potentially leading to the future creation of Artificial Neural Networks (ANNs) based on reversible changes in the topology of magnetic NWs.
Keywords
Nanowire; Bloch Points; Artificial Neuron
Subject
Physical Sciences, Condensed Matter Physics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
