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The interaction between the propagating spin waves and the current driven motion of a transverse domain wall in magnetic nanowires is studied by micromagnetic simulations. If the speed of domain walls due to current induced spin transfer…

Materials Science · Physics 2011-03-25 Mahdi Jamali , Hyunsoo Yang , Kyung-Jin Lee

Spiking neural network offers the most bio-realistic approach to mimic the parallelism and compactness of the human brain. A spiking neuron is the central component of an SNN which generates information-encoded spikes. We present a…

Neural and Evolutionary Computing · Computer Science 2023-08-31 Md Mazharul Islam , Shamiul Alam , Catherine D Schuman , Md Shafayat Hossain , Ahmedullah Aziz

Spin-orbit torque provides an efficient pathway to manipulate the magnetic state and magnetization dynamics of magnetic materials, which is crucial for energy-efficient operation of a variety of spintronic devices such as magnetic memory,…

Mesoscale and Nanoscale Physics · Physics 2021-02-24 Hang Xie , Xin Chen , Ziyan Luo , Yihong Wu

We propose a new design for a cellular neural network with spintronic neurons and CMOS-based synapses. Harnessing the magnetoelectric and inverse Rashba-Edelstein effects allows natural emulation of the behavior of an ideal cellular…

Emerging Technologies · Computer Science 2018-11-22 Andrew W. Stephan , Jiaxi Hu , Steven J. Koester

Ultrathin ferromagnetic strips with high perpendicular anisotropy have been proposed for the development of memory devices where the information is coded in tiny domains separated by domain walls. The design of practical devices requires…

Mesoscale and Nanoscale Physics · Physics 2017-09-21 Oscar Alejos , Victor Raposo , Luis Sanchez-Tejerina , Eduardo Martinez

Tailoring spin coupling to electric fields is central to spintronics and spin-based quantum information processing. We present an optimal micromagnet design that produces appropriate stray magnetic fields to mediate fast electrical spin…

Spintronic devices have been widely studied for the hardware realization of artificial neurons. The stochastic switching of magnetic tunnel junction driven by the spin torque is commonly used to produce the sigmoid activation function.…

Emerging Technologies · Computer Science 2022-11-28 Yue Xin , Kang Zhou , Xuanyao Fong , Yumeng Yang , Shenghua Gao , Zhifeng Zhu

The demonstration of the generation and control of a pure spin current (without net charge flow) by electric fields and/or temperature gradient has been an essential leap in the quest for low-power consumption electronics. The key issue of…

Mesoscale and Nanoscale Physics · Physics 2013-10-10 Chenglong Jia , Jamal Berakdar

Neurons are spatially extended structures that receive and process inputs on their dendrites. It is generally accepted that neuronal computations arise from the active integration of synaptic inputs along a dendrite between the input…

Neurons and Cognition · Quantitative Biology 2013-09-11 Willem A. M. Wybo , Klaus M. Stiefel , Benjamin Torben-Nielsen

Magnetic domain wall motion has recently garnered significant interest as a physical mechanism to enable energy-efficient, next-generation brain-inspired computing architectures. However, realizing all behaviors required for neuromorphic…

Materials Science · Physics 2025-08-21 Jeffrey A. Brock , Aleksandr Kurenkov , Aleš Hrabec , Laura J. Heyderman

A novel scheme for non-volatile digital computation is proposed using spin-transfer torque (STT) and automotion of magnetic domain walls (DWs). The basic computing element is composed of a lateral spin valve (SV) with two ferromagnetic (FM)…

Emerging Technologies · Computer Science 2016-09-21 Sou-Chi Chang , Sasikanth Manipatruni , Dmitri E. Nikonov , Ian A. Young , Azad Naeemi

The utilization of spin waves as eigenmodes of the magnetization dynamics for information processing and communication has been widely explored recently due to its high operational speed with low power consumption and possible applications…

Materials Science · Physics 2013-11-11 Mahdi Jamali , Jae Hyun Kwon , Soo-Man Seo , Kyung-Jin Lee , Hyunsoo Yang

Artificial synapse is a key element of future brain-inspired neuromorphic computing systems implemented in hardware. This work presents a graphene synaptic transistor based on all-technology-compatible materials that exhibits highly tunable…

We present the design and numerical simulation of a spiking neuron capable of on-chip machine learning. Built within the CMOS+X framework, the spiking neuron consists of an NMOS transistor combined with a magnetic tunnel junction (MTJ).…

Understanding how biological neural networks carry out learning using spike-based local plasticity mechanisms can lead to the development of powerful, energy-efficient, and adaptive neuromorphic processing systems. A large number of…

Neural and Evolutionary Computing · Computer Science 2022-11-08 Lyes Khacef , Philipp Klein , Matteo Cartiglia , Arianna Rubino , Giacomo Indiveri , Elisabetta Chicca

Micromagnetic modeling is employed to optimize the design of artificial synapse devices based on the spin-orbit-torque (SOT) driven domain wall (DW) motion along a nanotrack with triangular notches. Key attributes, such as the thermal…

Applied Physics · Physics 2025-01-28 Guntas Kaur , Tanmoy Pramanik

Brain network is a large-scale complex network with scale-free, small-world, and modularity properties, which largely supports this high-efficiency massive system. In this paper, we propose to synthesize brain-network-inspired…

Hardware Architecture · Computer Science 2021-08-30 Mengke Ge , Xiaobing Ni , Qi Xu , Song Chen , Jinglei Huang , Yi Kang , Feng Wu

Artificial intelligence based on artificial neural networks, which are originally inspired by the biological architectures of human brain, has mostly been realized using software but executed on conventional von Neumann computers, where the…

Disordered Systems and Neural Networks · Physics 2020-01-29 Qi Zheng , Xiaorui Zhu , Yuanyuan Mi , Zhe Yuan , Ke Xia

This paper proposes a spintronic neuron structure composed of a heterostructure of magnets and a piezoelectric with a magnetic tunnel junction (MTJ). The operation of the device is simulated using SPICE models. Simulation results illustrate…

Recent years have seen an increasing interest in the development of artificial intelligence circuits and systems for edge computing applications. In-memory computing mixed-signal neuromorphic architectures provide promising ultra-low-power…

Emerging Technologies · Computer Science 2021-03-05 Arianna Rubino , Can Livanelioglu , Ning Qiao , Melika Payvand , Giacomo Indiveri