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Impurity pinning has long been discussed to have a profound effect on the dynamics of an incommensurate charge density wave (CDW), which would otherwise slide through the lattice without resistance. Here we visualize the impurity pinning…

The interactions between vortices in a thin superconducting film and one magnetic dipole in the presence of a magnetic field applied parallel to the film surfaces are studied theoretically in the London limit. The dipole magnetic moment is…

Superconductivity · Physics 2009-11-11 Gilson Carneiro

Using piezoresponse force microscopy on epitaxial ferroelectric thin films, we have measured the evolution of domain wall roughening as a result of heat-quench cycles up to 735C, with the effective roughness exponent \zeta\ changing from…

Disordered Systems and Neural Networks · Physics 2013-11-07 Patrycja Paruch , Alejandro B. Kolton , Xia Hong , Charles H. Ahn , Thierry Giamarchi

Domain wall (DW) dynamics in antiferromagnetic (AFM) systems offer the advantages over their ferromagnetic counterparts of having faster and more energy efficient manipulation due to the absence of net magnetization, leading to reduced…

The discontinuity of a spin-current through an interface caused by spin-orbit coupling is characterized by the spin memory loss (SML) parameter {\delta}. We use first-principles scattering theory and a recently developed local current…

Mesoscale and Nanoscale Physics · Physics 2021-05-06 Kriti Gupta , Rien J. H. Wesselink , Ruixi Liu , Zhe Yuan , Paul J. Kelly

Ferromagnetic domain walls -transitional regions between magnetic domains- are an essential ingredient for racetrack memory, a device concept that promises to deliver faster and more compact memory storage compared to other non-volatile…

Mesoscale and Nanoscale Physics · Physics 2026-03-12 A. L. Bassant , Y. M. J. Ohlsen , M. Cherkasskii , P. B. He , R. A. Duine

We consider disordered pinning models, when the return time distribution of the underlying renewal process has a polynomial tail with exponent $\alpha \in (1/2,1)$. This corresponds to a regime where disorder is known to be relevant, i.e.…

Probability · Mathematics 2017-09-01 Francesco Caravenna , Fabio Lucio Toninelli , Niccolo Torri

With the increased popularity of Deep Neural Networks (DNNs), increases also the need for tools to assist developers in the DNN implementation, testing and debugging process. Several approaches have been proposed that automatically analyse…

Software Engineering · Computer Science 2024-12-18 Nargiz Humbatova , Jinhan Kim , Gunel Jahangirova , Shin Yoo , Paolo Tonella

Current-induced magnetic domain wall motion at zero magnetic field is observed in the permalloy layer of a spin-valve-based nanostripe using photoemission electron microscopy. The domain wall movement is hampered by pinning sites, but in…

In recent years there has been renewed interest in the behavior of dislocations in crystals that exhibit strong atomic scale disorder, as typical of compositionally complex single phase alloys. The behavior of dislocations in such crystals…

Materials Science · Physics 2021-10-26 Aviral Vaid , De'an Wei , Erik Bitzek , Samaneh Nasiri , Michael Zaiser

Neural networks (NNs) can achieved high performance in various fields such as computer vision, and natural language processing. However, deploying NNs in resource-constrained safety-critical systems has challenges due to uncertainty in the…

Machine Learning · Computer Science 2024-01-17 Soyed Tuhin Ahmed

Reliability issues stemming from device level non-idealities of non-volatile emerging technologies like ferroelectric field-effect transistors (FeFET), especially at scaled dimensions, cause substantial degradation in the accuracy of…

Emerging Technologies · Computer Science 2024-03-14 Bibhas Manna , Arnob Saha , Zhouhang Jiang , Kai Ni , Abhronil Sengupta

Deep neural networks (DNNs) have been shown to tolerate "brain damage": cumulative changes to the network's parameters (e.g., pruning, numerical perturbations) typically result in a graceful degradation of classification accuracy. However,…

Cryptography and Security · Computer Science 2019-06-05 Sanghyun Hong , Pietro Frigo , Yiğitcan Kaya , Cristiano Giuffrida , Tudor Dumitraş

Domain wall (DW) motion is a crucial process involved in magnetization reversal, be it under magnetic field or spin-polarized current stimulus. In most cases DW speed does not exceed $\approx$100m/s and collapses above a given threshold of…

Digital In-memory computing improves energy efficiency and throughput of a data-intensive process, which incur memory thrashing and, resulting multiple same memory accesses in a von Neumann architecture. Digital in-memory computing involves…

Hardware Architecture · Computer Science 2021-08-11 Veerendra S Devaraddi , Joycee M. Mekie

Current domain adaptation methods under missingness shift are restricted to Missing At Random (MAR) missingness mechanisms. However, in many real-world examples, the MAR assumption may be too restrictive. When covariates are Missing Not At…

Methodology · Statistics 2025-04-02 Tyrel Stokes , Hyungrok Do , Saul Blecker , Rumi Chunara , Samrachana Adhikari

We have studied the current-induced displacement of a domain wall (DW) in the permalloy (Py) layer of a Co/Cu/Py spin valve structure at zero and very small applied field. The displacement is in opposite direction for opposite dc currents,…

Materials Science · Physics 2009-11-10 J. Grollier , P. Boulenc , V. Cros , A. Hamzic , A. Vaures , A. Fert , G. Faini

Compute-in-memory (PIM) mitigates the memory wall by performing computation within memory, reducing data movement and improving energy efficiency. DRAM-based PIM is particularly attractive due to its high density, mature manufacturing…

Hardware Architecture · Computer Science 2026-05-26 Siddhartha Raman Sundara Raman , Siyuan Ma , Lizy Kurian John

Over past years, the philosophy for designing the artificial intelligence algorithms has significantly shifted towards automatically extracting the composable systems from massive data volumes. This paradigm shift has been expedited by the…

Machine Learning · Computer Science 2020-04-14 Navid Khoshavi , Connor Broyles , Yu Bi

In Ref. [1] the author has recently established sharp large deviation principles for cumulative rewards associated with a discrete-time renewal model, supposing that each renewal involves a broad-sense reward taking values in a separable…

Mathematical Physics · Physics 2023-04-24 Marco Zamparo