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Related papers: Thermal gradient-driven skyrmion dynamics with nea…

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Magnetic skyrmions are topologically-distinct swirls of magnetic moments which display particle-like behaviour, including the ability to undergo thermally-driven diffusion. In this paper we study the thermally activated motion of arrays of…

Mesoscale and Nanoscale Physics · Physics 2021-11-03 Yifan Zhou , Rhodri Mansell , Tapio Ala-Nissila , Sebastiaan van Dijken

Magnetic skyrmions are topologically-protected spin textures existing in helimagentic materials, which can be utilized as information carriers for non-volatile memories and logic circuits in spintronics. Searching simple and controllable…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 Ya-qing Zheng , Yong Wang

A new paradigm is required to facilitate the demand for the huge data storage capacity and faster data processing in the future. Nano structures such as magnetic skyrmions have been predicted to address this issues as these vortex…

Materials Science · Physics 2017-03-21 Sarmita Majumder , Priyamvada Jadaun , Tanmay Pramanik , Sanjay K. Banerjee

Magnetic skyrmions are topologically-protected spin textures that exhibit fascinating physical behaviors and large potential in highly energy efficient spintronic device applications. The main obstacles so far are that skyrmions have been…

Magnetic skyrmions have potential applications in next-generation spintronics devices with ultralow energy consumption. In this work, the current-driven skyrmion motion in a narrow ferromagnetic nanotrack with voltage-controlled magnetic…

Mesoscale and Nanoscale Physics · Physics 2018-09-24 Junlin Wang , Jing Xia , Xichao Zhang , G. P. Zhao , Jing Wu , Yongbing Xu , Zhigang Zou , Yan Zhou

The low energy charged excitations in quantum Hall ferromagnets are topological defects in the spin orientation known as skyrmions. Recent experimental studies on nuclear magnetic resonance spectral line shapes in quantum well…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Jairo Sinova , S. M. Girvin , T. Jungwirth , K. Moon

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

Non-interacting particles exhibiting Brownian motion have been observed in many occasions of sciences, such as molecules suspended in liquids, optically trapped microbeads, and spin textures in magnetic materials. In particular, a detailed…

Mesoscale and Nanoscale Physics · Physics 2020-11-17 Le Zhao , Zidong Wang , Xichao Zhang , Xue Liang , Jing Xia , Keyu Wu , Heng-An Zhou , Yiqing Dong , Guoqiang Yu , Kang L. Wang , Xiaoxi Liu , Yan Zhou , Wanjun Jiang

Magnetic skyrmions are chiral spin structures with a whirling configuration. Their topological properties, nanometer size and the fact that they can be moved by small current densities have opened a new paradigm for the manipulation of…

Micromagnetic simulations have been performed to investigate the suppression of the skyrmion Hall effect in nanotracks with their magnetic properties strategically modified. In particular, we study two categories of magnetically modified…

Computational Physics · Physics 2020-02-27 D. Toscano , J. P. A. Mendonça , A. L. S. Miranda , C. I. L. de Araujo , F. Sato , P. Z. Coura , S. A. Leonel

The well-known Hall effect describes the transverse deflection of charged particles (electrons or holes) in an electric-current carrying conductor under the influence of perpendicular magnetic fields, as a result of the Lorentz force.…

Magnetic skyrmions are stable nanosized spin structures that can be displaced at low electrical current densities. Because of these properties, they have been proposed as building blocks of future electronic devices with unprecedentedly…

Mesoscale and Nanoscale Physics · Physics 2019-05-06 Maxime Leroux , Matthew J. Stolt , Song Jin , Douglas V. Pete , Charles Reichhardt , Boris Maiorov

We review recent progresses towards an understanding of the Skyrmion Hall transport in insulating as well as conducting materials. First, we consider a theoretical breakthrough based on the quantum field theory Ward identity, a first…

Strongly Correlated Electrons · Physics 2019-07-19 Bom Soo Kim

Non-volatile memory and computing technology rely on efficient read and write of ultra-tiny information carriers that do not wear out. Magnetic skyrmions are emerging as a potential carrier since they are topologically robust nanoscale spin…

Magnetic skyrmions are topologically protected spin textures that exhibit many fascinating features. As compared to the well-studied cryogenic Bloch skyrmions in bulk materials, we focus on the room-temperature N\'eel skyrmions in thin-film…

In this work, the current-induced inertial effects on skyrmions hosted in ferromagnetic systems are studied. {When the dynamics is considered beyond the particle-like description, magnetic skyrmions can deform due to a self-induced field.…

A key issue for skyrmion dynamics and devices are pinning effects present in real systems. While posing a challenge for the realization of conventional skyrmionics devices, exploiting pinning effects can enable non-conventional computing…

We study the dynamics and velocity-force curves of a skyrmion moving over a two-dimensional periodic substrate using simulations of a particle-based skyrmion model, focusing on the role of the non-dissipative Magnus term. In the overdamped…

Strongly Correlated Electrons · Physics 2015-03-30 C. Reichhardt , D. Ray , C. J. Olson Reichhardt

Neel skyrmions are of high interest due to their potential applications in a variety of spintronic devices, currently accessible in ultrathin heavy metal/ferromagnetic bilayers and multilayers with a strong Dzyaloshinskii-Moriya…

Materials Science · Physics 2017-04-05 Shawn D. Pollard , Joseph A. Garlow , Jiawei Yu , Zhen Wang , Yimei Zhu , Hyunsoo Yang

We examine the motion of an individual skyrmion driven through an assembly of other skyrmions by a constant or increasing force in the absence of quenched disorder. The skyrmion behavior is determined by the ratio of the damping and Magnus…

Mesoscale and Nanoscale Physics · Physics 2024-04-23 C. Reichhardt , C. J. O. Reichhardt
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