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Magnetic skyrmions, topologically protected vortex-like configurations in spin textures, are of wide conceptual and practical appeal for quantum information technologies, notably in relation to the making of so-called race-track memory…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 Emil Viñas Boström , Claudio Verdozzi

Magnetic skyrmions are topological quasiparticles whose non-volatility, detectability, and mobility make them exciting candidates for low-energy computing. Previous works have demonstrated the feasibility and efficiency of current-driven…

Mesoscale and Nanoscale Physics · Physics 2023-01-27 Benjamin W. Walker , Alexander J. Edwards , Xuan Hu , Michael P. Frank , Felipe Garcia-Sanchez , Joseph S. Friedman

Computational reversibility is necessary for quantum computation and inspires the development of computing systems in which information carriers are conserved as they flow through a circuit. While conservative logic provides an exciting…

Magnetic skyrmions are envisioned as carriers of information in racetrack storage devices. Unfavorably, the skyrmion Hall effect hinders the fast propagation of skyrmions along an applied electric current and limits the device's maximum…

Strongly Correlated Electrons · Physics 2019-01-30 Börge Göbel , Alexander Mook , Jürgen Henk , Ingrid Mertig

Magnetic skyrmions can be driven by an applied spin-polarized electron current which exerts a spin-transfer torque on the localized spins constituting the skyrmion. However, the longitudinal dynamics is plagued by the skyrmion Hall effect…

Mesoscale and Nanoscale Physics · Physics 2020-05-27 J. Plettenberg , M. Stier , M. Thorwart

The creation and manipulation of magnetic skyrmions in magnetic bilayer heterostructures via spin-orbit torque have been intensively studied in spintronics because of their potential application as information carriers in next-generation…

Mesoscale and Nanoscale Physics · Physics 2025-05-09 Yuto Uwabo , Masahito Mochizuki

Skyrmions are topologically protected non-collinear magnetic structures. Their stability and dynamics, arising from their topological character, have made them ideal information carriers e.g. in racetrack memories. The success of such a…

In this article we use chiral domain walls to manipulate and trap magnetic skyrmion quasi-particles in chiral magnetic materials such as ultrathin Co/Pt films. The magnetic skyrmions can be orientated such that their interaction with domain…

Mesoscale and Nanoscale Physics · Physics 2025-02-14 Paul Leask

Skyrmions--topologically protected nanoscale spin textures with vortex-like configurations--hold transformative potential for ultra-dense data storage, spintronics and quantum computing. However, their practical utility is challenged by…

Mesoscale and Nanoscale Physics · Physics 2025-03-11 Lei Liu , Xiujuan Zhang , Ming-Hui Lu , Yan-Feng Chen

Skyrmions and antiskyrmions are nanoscale swirling textures of magnetic moments formed by chiral interactions between atomic spins in magnetic non-centrosymmetric materials and multilayer films with broken inversion symmetry. These…

Neuromorphic computing uses brain-inspired principles to design circuits that can perform computational tasks with superior power efficiency to conventional computers. Approaches that use traditional electronic devices to create artificial…

Applied Physics · Physics 2020-07-14 J. Grollier , D. Querlioz , K. Y. Camsari , K. Everschor-Sitte , S. Fukami , M. D. Stiles

Skyrmions are prospected as the potential future of data storage due to their topologically protected spin structures. However, traditional ferromagnetic (FM) skyrmions experience deflection when driven with an electric current, hindering…

Materials Science · Physics 2023-05-08 Amal Aldarawsheh , Moritz Sallermann , Muayad Abusaa , Samir Lounis

Magnetic skyrmions are topologically protected excitations of the magnetization vector field with promising applications in spintronics and spin-caloritronics, particularly due to their high mobility. Skyrmions can be steered by a…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 Xi-guang Wang , L. Chotorlishvili , Guang-hua Guo , C. -L. Jia , J. Berakdar

Recent DNA pre-alignment filter designs employ DRAM for storing the reference genome and its associated meta-data. However, DRAM incurs increasingly high energy consumption background and refresh energy as devices scale. To overcome this…

Emerging Technologies · Computer Science 2022-12-27 Fazal Hameed , Asif Ali Khan , Sebastien Ollivier , Alex K. Jones , Jeronimo Castrillon

Magnetic Skyrmions belong to the most interesting spin structures for the development of future information technology as they have been predicted to be topologically protected. To quantify their stability, we use an innovative multiscale…

Materials Science · Physics 2017-07-19 Andrea De Lucia , Kai Litzius , Benjamin Krüger , Oleg A. Tretiakov , Mathias Kläui

The Reservoir Computing (RC) paradigm posits that sufficiently complex physical systems can be used to massively simplify pattern recognition tasks and nonlinear signal prediction. This work demonstrates how random topological magnetic…

Mesoscale and Nanoscale Physics · Physics 2020-11-18 Daniele Pinna , George Bourianoff , Karin Everschor-Sitte

The Skyrmion Hall Effect (SkHE) observed in ferromagnetic (FM) and ferrimagnetic (FI) skyrmions traveling due to a spin-polarized current can be a problematic issue when it comes to technological applications. By investigating the…

Mesoscale and Nanoscale Physics · Physics 2024-05-16 R. C. Silva , R. L. Silva , J. C. Moreira , W. A. Moura-Melo , A. R. Pereira

Magnetic skyrmions are localized, topologically protected spin-structures that have been proposed for storing or processing information due to their intriguing dynamical and transport properties. Important in terms of applications is the…

Materials Science · Physics 2016-06-07 B. Dupé , G. Bihlmayer , S. Blügel , S. Heinze

Magnetic skyrmions, vortex-like swirling spin structures with quantized topological number, observed in chiral magnets, are appealing for potential applications in spintronics because it is possible to control their motion with ultralow…

Mesoscale and Nanoscale Physics · Physics 2013-10-08 Junichi Iwasaki , Masahito Mochizuki , Naoto Nagaosa

While magnetic solid-state memory has found commercial applications to date, magnetic logic has rather remained on a conceptual level so far. Here, we discuss open challenges of different spintronic logic approaches, which use magnetic…

Emerging Technologies · Computer Science 2024-01-19 Christoph Adelmann , Florin Ciubotaru , Fanfan Meng , Sorin Cotofana , Sebastien Couet