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Related papers: Stochastic p-Bits Based on Spin-Orbit Torque Magne…

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Artificial neural networks can harness stochasticity in multiple ways to enable a vast class of computationally powerful models. Electronic implementation of such stochastic networks is currently limited to addition of algorithmic noise to…

Emerging Technologies · Computer Science 2018-03-30 Abhinav Parihar , Matthew Jerry , Suman Datta , Arijit Raychowdhury

We propose a new class of non-uniform superlattice magnetic tunnel junctions (Nu-SLTJs) with the Linear, Gaussian, Lorentzian, and P\"oschl-teller width and height based profiles manifesting a sizable enhancement in the TMR($\approx…

Mesoscale and Nanoscale Physics · Physics 2023-03-31 Sabarna Chakraborti , Abhishek Sharma

Spin-transfer torques (STTs) can be exploited in order to manipulate the magnetic moments of nanomagnets, thus allowing for new consumer-oriented devices to be designed. Of particular interest here are tuneable radio-frequency (RF)…

The emerging Spin Transfer Torque Magnetic Tunnel Junction (STT-MTJ) technology exhibits interesting stochastic behavior combined with small area and low operation energy. It is, therefore, a promising technology for security applications,…

Cryptography and Security · Computer Science 2023-07-28 Ben Perach , Shahar Kvatinsky

One of the big challenges of current electronics is the design and implementation of hardware neural networks that perform fast and energy-efficient machine learning. Spintronics is a promising catalyst for this field with the capabilities…

Mesoscale and Nanoscale Physics · Physics 2022-01-17 Jan Kaiser , William A. Borders , Kerem Y. Camsari , Shunsuke Fukami , Hideo Ohno , Supriyo Datta

The use of analog resistance states for storing weights in neuromorphic systems is impeded by fabrication imprecision and device stochasticity that limit the precision of synapse weights. This challenge can be resolved by emulating analog…

Neural and Evolutionary Computing · Computer Science 2021-12-13 Peng Zhou , Julie A. Smith , Laura Deremo , Stephen K. Heinrich-Barna , Joseph S. Friedman

Two promising strategies for achieving efficient control of magnetization in future magnetic memory and non-volatile spin logic devices are spin transfer torque from spin polarized currents and voltage-controlled magnetic anisotropy (VCMA).…

Materials Science · Physics 2012-09-06 Luqiao Liu , Chi-Feng Pai , D. C. Ralph , R. A. Buhrman

Probabilistic computing has emerged as a viable approach to treat optimization problems. To achieve superior computing performance, the key aspect during computation is massive sampling and tuning on the probability states of each…

Applied Physics · Physics 2025-02-07 Yadi Wang , Bin Chen , Wenping Gao , Biying Ye , Chang Niu , Wenbin Wang , Yinyan Zhu , Weichao Yu , Hangwen Guo , Jian Shen

A promising branch of neuromorphic computing aims to perform cognitive operations in hardware leveraging the physics of efficient and well-established nano-devices. In this work, we present a reconfigurable classifier based on a network of…

Applied Physics · Physics 2024-07-10 A. Lopez , D. Costa , T. Bohnert , P. P. Freitas , R. Ferreira , I. Barbero , J. Camarero , C. Leon , J. Grollier , M. Romera

The phenomenon of spin transfer torque (STT) has attracted a great deal of interests due to its promising prospects in practical spintronic devices. In this paper, we report a theoretical investigation of STT in a noncollinear magnetic…

Mesoscale and Nanoscale Physics · Physics 2017-05-17 Xiaobin Chen , Chenyi Zhou , Zhaohui Zhang , Jingzhe Chen , Xiaohong Zheng , Lei Zhang , Can-Ming Hu , Hong Guo

Smart material implication (SIMPLY) logic has been recently proposed for the design of energy-efficient Logic-in-Memory (LIM) architectures based on non-volatile resistive memory devices. The SIMPLY logic is enabled by adding a comparator…

Emerging Technologies · Computer Science 2022-06-01 Raffaele De Rose , Tommaso Zanotti , Francesco Maria Puglisi , Felice Crupi , Paolo Pavan , Marco Lanuzza

Spin torque nano-oscillators (STNOs) hold encouraging promise for nanoscale microwave generators, modulators, and new types of intelligent computing. The nonlinearity, describing the current-induced tunability of oscillating frequency, is a…

Applied Physics · Physics 2025-05-13 Zixi Wang , Wenlong Cai , Ao Du , Zanhong Chen , Lei Zhou , Shiyang Lu , Kewen Shi , Weisheng Zhao

Magnetic Tunnel Junctions (MTJs) have shown great promise as hardware sources for true random number generation (TRNG) due to their intrinsic stochastic switching behavior. However, practical deployment remains challenged by drift in…

The discovery of efficient magnetization switching activated by the spin Hall effect (SHE)-induced spin-orbit torque (SOT) changed the course of magnetic random-access memory (MRAM) research and development. However, for systems with…

Mesoscale and Nanoscale Physics · Physics 2023-06-13 Chen-Yu Hu , Wei-De Chen , Yan-Ting Liu , Chao-Chun Huang , Chi-Feng Pai

This paper addresses the question: Can spintronic circuits based on Magnetic Tunnel Junction (MTJ) transducers outperform their state-of-the-art CMOS counterparts? To this end, we use the EPFL combinational benchmark sets, synthesize them…

Stochastic switching circuits are relay circuits that consist of stochastic switches called pswitches. The study of stochastic switching circuits has widespread applications in many fields of computer science, neuroscience, and…

Information Theory · Computer Science 2012-09-05 Hongchao Zhou , Po-Ling Loh , Jehoshua Bruck

While current-induced bistate spin-orbit torque (SOT) switching has been well established, deterministic electrical control of multiple magnetic states remains a central challenge in spintronics. Here, we realize a conceptually new…

Mesoscale and Nanoscale Physics · Physics 2026-03-13 Fei Ye , Chunzheng Wang , Xue Zhang , Sihai Jiao , Zhongjie Wang , Long Cheng , Zhifeng Zhu , Chunlei Gao , Xiaofang Zhai

The discovery of spin torque transfer (STT) has lead to a significant advance in the development of spintronic devices. Novel structures and materials have been studied in order to improve the performance of the magnetic tunnel junctions…

Mesoscale and Nanoscale Physics · Physics 2009-08-24 Xiaofeng Yao , Yisong Zhang , Andrew Lyle , Roger Malmhall , Rajiv Ranjan , Lei Lu , Mingzhong Wu , Hao Wang , Ying Jing , Jian-Ping Wang

Spin-orbit torques (SOTs) have opened a new path to switch the magnetization in perpendicularly magnetized films and are of great interest due to their potential applications in novel data storage technology, such as the magnetic random…

Materials Science · Physics 2017-02-02 Pan He , Xuepeng Qiu , Vanessa L. Zhang , Yang Wu , Meng Hau Kuok , Hyunsoo Yang

The spin-orbit torques (SOTs) generated from topological insulators (TIs) have gained increasing attention in recent years. These TIs, which are typically formed by epitaxially grown chalcogenides, possess extremely high SOT efficiencies…

Materials Science · Physics 2020-02-18 Tian-Yue Chen , Cheng-Wei Peng , Tsung-Yu Tsai , Wei-Bang Liao , Chun-Te Wu , Hung-Wei Yen , Chi-Feng Pai