Magnetic skyrmion artificial synapse for neuromorphic computing.
Kyung Mee Song,Jaeseung Jeong,Sun Kyung Cha,Tae Eon Park,Kwangsu Kim,Simone Finizio,Jörg Raabe,Joonyeon Chang,Hyunsu Ju,Seonghoon Woo +9 more
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TLDR
In this article, an electrically-operating skyrmion-based artificial synaptic device designed for neuromorphic computing was presented, where current-induced creation, motion, detection and deletion of skyrms in ferrimagnetic multilayers can be harnessed in a single device at room temperature to imitate the behaviors of biological synapses.Abstract:
Since the experimental discovery of magnetic skyrmions achieved one decade ago, there have been significant efforts to bring the virtual particles into all-electrical fully functional devices, inspired by their fascinating physical and topological properties suitable for future low-power electronics. Here, we experimentally demonstrate such a device: electrically-operating skyrmion-based artificial synaptic device designed for neuromorphic computing. We present that controlled current-induced creation, motion, detection and deletion of skyrmions in ferrimagnetic multilayers can be harnessed in a single device at room temperature to imitate the behaviors of biological synapses. Using simulations, we demonstrate that such skyrmion-based synapses could be used to perform neuromorphic pattern-recognition computing using handwritten recognition data set, reaching to the accuracy of ~89 percents, comparable to the software-based training accuracy of ~94 percents. Chip-level simulation then highlights the potential of skyrmion synapse compared to existing technologies. Our findings experimentally illustrate the basic concepts of skyrmion-based fully functional electronic devices while providing a new building block in the emerging field of spintronics-based bio-inspired computing.read more
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Skyrmion-electronics: writing, deleting, reading and processing magnetic skyrmions toward spintronic applications.
Xichao Zhang,Yan Zhou,Kyung Mee Song,Tae Eon Park,Jing Xia,Motohiko Ezawa,Xiaoxi Liu,Weisheng Zhao,Guoping Zhao,Seonghoon Woo +9 more
TL;DR: The field of magnetic skyrmions has been actively investigated across a wide range of topics during the last decades as discussed by the authors, including information storage, logic computing gates and non-conventional devices such as neuromorphic computing devices.
Journal ArticleDOI
Magnetic Skyrmion Materials.
TL;DR: The materials science and materials chemistry of magnetic skyrmions are described using the classification scheme of theskyrmion forming microscopic mechanisms, including the generation of emergent magnetic and electric field by statics and dynamics of skrymions and the inherent magnetoelectric effect.
Journal ArticleDOI
Synaptic devices based neuromorphic computing applications in artificial intelligence
Bai Sun,Bai Sun,Tao Guo,Guangdong Zhou,Shubham Ranjan,Yixuan Jiao,Lan Wei,Y. Norman Zhou,Yimin A. Wu +8 more
TL;DR: In this article, the authors focus on the discussions of synaptic devices based neuromorphic computing applications in artificial intelligence and discuss future applications in neuromorphic vision, sensor, human machine intelligence, topological and quantum computing.
Journal ArticleDOI
Skyrmion devices for memory and logic applications
Shijiang Luo,Long You +1 more
TL;DR: In this article, the development, structure, and materials of skyrmions are discussed and the recent progress in skyrMion devices for memory and logic applications and discuss their challenges and prospects.
Journal ArticleDOI
Spintronic devices: a promising alternative to CMOS devices
TL;DR: A brief history, current status, and future prospectus of the spintronics field for a novice is introduced and a detailed description of various switching mechanisms to write the information in spintronic devices that have the capability to be used for processing-in-memory architecture in the immediate future is described.
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