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The memory consistency model is a fundamental system property characterizing a multiprocessor. The relative merits of strict versus relaxed memory models have been widely debated in terms of their impact on performance, hardware complexity…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-04-07 Alexander Jaffe , Thomas Moscibroda , Laura Effinger-Dean , Luis Ceze , Karin Strauss

The influence of the curvature on the dynamical properties of transversal domain walls in a thin antiferromagnetic wire is studied theoretically. Equations of motion for antiferromagnetic domain wall are obtained within the collective…

Strongly Correlated Electrons · Physics 2022-02-16 Kostiantyn V. Yershov

The performance and efficiency of running large-scale datasets on traditional computing systems exhibit critical bottlenecks due to the existing "power wall" and "memory wall" problems. To resolve those problems, processing-in-memory (PIM)…

Hardware Architecture · Computer Science 2022-04-22 Yinglin Zhao , Jianlei Yang , Bing Li , Xingzhou Cheng , Xucheng Ye , Xueyan Wang , Xiaotao Jia , Zhaohao Wang , Youguang Zhang , Weisheng Zhao

The motion of a domain wall in a two dimensional medium is studied taking into account the internal elastic degrees of freedom of the wall and geometrical pinning produced both by holes and sample boundaries. This study is used to analyze…

The progress in neuromorphic computing is fueled by the development of novel nonvolatile memories capable of storing analog information and implementing neural computation efficiently. However, like most other analog circuits, these devices…

Emerging Technologies · Computer Science 2021-07-12 Z. Fahimi , M. R. Mahmoodi , M. Klachko , H. Nili , H. Kim , D. B. Strukov

The inability of practical MANET deployments to scale beyond about 100 nodes has traditionally been blamed on insufficient network capacity for supporting routing related control traffic. However, this paper points out that network capacity…

Networking and Internet Architecture · Computer Science 2015-09-10 Vinod Kulathumani , Mukundan Sridharan , Anish Arora , Bryan Lemon , Kenneth Parker

We revisit the cosmological evolution of domain wall networks, taking advantage of recent improvements in computing power. We carry out high-resolution field theory simulations in two, three and four spatial dimensions to study the effects…

High Energy Physics - Phenomenology · Physics 2015-05-30 A. M. M. Leite , C. J. A. P. Martins

Nanoscale magnetic junction provides a useful approach to act as the building block for magnetoresistive random access memories (MRAM), where one of the key issues is to control the magnetic domain configuration. Here, we study the domain…

Computational Physics · Physics 2017-08-22 Junlin Wang , Xichao Zhang , Xianyang Lu , Jason Zhang , Hua Ling , Jing Wu , Yan Zhou , Yongbing Xu

With the increasing complexity of computing systems, complete hardware reliability can no longer be guaranteed. We need, however, to ensure overall system reliability. One of the most important features of artificial neural networks is…

Neural and Evolutionary Computing · Computer Science 2015-10-07 Anton Kulakov , Mark Zwolinski , Jeff Reeve

We consider the dynamics of polarization of a single domain wall in a magnetic nanowire, which is strongly pinned by impurities. In this case the equation of motion for the polarization parameter does not include any other dynamical…

Mesoscale and Nanoscale Physics · Physics 2015-10-16 N. Sedlmayr , V. Dugaev , J. Berakdar

This work is focused on determining the electrical resistance, which induced by single domain wall in magnetic nanowire with a negligible defect. The provided model covers a wide range of nanowire's diameters. The obtained result…

Other Condensed Matter · Physics 2022-03-15 Artur Useinov

The sensitivity parameter is widely used for quantifying fine tuning. However, examples show it fails to give correct results under certain circumstances. We argue that these problems only occur when calculating the sensitivity of a…

High Energy Physics - Phenomenology · Physics 2007-10-24 Su Yan

At low Landau level filling factors ($\nu$), Wigner solid phases of two-dimensional electron systems in GaAs are pinned by disorder, and exhibit a pinning mode, whose frequency is a measure of the disorder that pins the Wigner solid.…

Mesoscale and Nanoscale Physics · Physics 2024-04-12 Matthew L. Freeman , P. T. Madathil , L. N. Pfeiffer , K. W. Baldwin , Y. J. Chung , R. Winkler , M. Shayegan , L. W. Engel

We report field- and current-induced domain wall (DW) depinning experiments in Ta/Co20Fe60B20/MgO nanowires through a Hall cross geometry. While purely field-induced depinning shows no angular dependence on in-plane fields, the effect of…

Dedicated hardware implementations of spiking neural networks that combine the advantages of mixed-signal neuromorphic circuits with those of emerging memory technologies have the potential of enabling ultra-low power pervasive sensory…

We represent the results of micromagnetic modeling and experimental magnetic force microscopy investigations of domain wall (DW) pinning-depinning effects in the hybrid systems consisting of ferromagnetic nanowire (NW) and two ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2011-12-21 V. L. Mironov , O. L. Ermolaeva , E. V. Skorohodov , A. Yu. Klimov

This paper presents a machine learning-based approach to correct inference errors caused by stuck-at faults in fully analog ReRAM-based neuromorphic circuits. Using a Design-Technology Co-Optimization (DTCO) simulation framework, we model…

Neural and Evolutionary Computing · Computer Science 2025-09-16 Vedant Sawal , Hiu Yung Wong

There are pressing problems with traditional computing, especially for accomplishing data-intensive and real-time tasks, that motivate the development of in-memory computing devices to both store information and perform computation.…

Recently completely new types of domain walls (DWs) have been discovered in helical magnets, consisting generically of a regular array of {\it pairs} of magnetic vortex lines \cite{Li+12}. Only for special orientations DWs are free of…

Materials Science · Physics 2014-02-11 Thomas Nattermann

We generalize domain-wall dynamics to the case of translationally noninvariant ferromagnetic nanowires. The obtained equations of motion make the description of the domain-wall propagation more realistic by accounting for the variations…

Mesoscale and Nanoscale Physics · Physics 2012-06-13 O. A. Tretiakov , Y. Liu , Ar. Abanov
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