Ferrimagnetic Synapse Devices for Fast and Energy-Efficient On-Chip Learning on Crossbar-Array-Based Neural Networks (A Device-Circuit-System Costudy)
IEEE Transactions on Electron Devices(2022)
Abstract
We propose a ferrimagnetic domain-wall synapse device as an alternative to its ferromagnetic counterpart for faster and more energy-efficient on-chip learning on a crossbar-array-based analog-hardware neural network. We first use micromagnetics to model domain-wall motion in a Co-Gd-bilayer-based ferrimagnetic device. We show that at the angular-momentum-compensation temperature, the ferrimagnetic...
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Key words
Current density,Magnetic moments,Micromagnetics,System-on-chip,Synapses,Saturation magnetization,Magnetic domains
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