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相关论文: Quantized Transport for a Skyrmion Moving on a Two…

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Using a particle-based model, we examine the collective dynamics of skyrmions interacting with a funnel potential under dc driving as the skyrmion density and relative strength of the Magnus and damping terms are varied. For driving in the…

介观与纳米尺度物理 · 物理学 2022-11-09 J. C. Bellizotti Souza , N. P. Vizarim , C. J. O. Reichhardt , C. Reichhardt , P. A. Venegas

We show that ac driven skyrmion lattices in a weak pinning channel confined by regions of strong pinning exhibit edge transport carried by skipping orbits while skyrmions in the bulk of the channel undergo localized orbits with no net…

介观与纳米尺度物理 · 物理学 2024-04-23 C. Reichhardt , C. J. O. Reichhardt

Magnetic skyrmionium is a skyrmion-like spin texture with nanoscale size and high mobility. It is a topologically trivial but dynamically stable structure, which can be used as a non-volatile information carrier for next-generation…

介观与纳米尺度物理 · 物理学 2021-11-25 Xue Liang , Xichao Zhang , Laichuan Shen , Jing Xia , Motohiko Ezawa , Xiaoxi Liu , Yan Zhou

Skyrmions are particle-like topological textures that hold great promise for low-power electronics and wave-based functionalities. Yet their utility is hindered by the lack of robust and controllable transport. Here, we show that band…

介观与纳米尺度物理 · 物理学 2026-04-23 Lei Liu , Xiujuan Zhang , Ming-Hui Lu , Yan-Feng Chen

We consider current-driven motion of magnetic skyrmions in granular magnetic films. The study uses micromagnetic modeling and phenomenological analysis based on the Thiele formalism. Remarkably, disorder enhances the effective skyrmion Hall…

介观与纳米尺度物理 · 物理学 2019-03-27 A. Salimath , A. Abbout , A. Brataas , A. Manchon

The competition between external drives and interparticle interactions are important for the static and dynamic properties of topological quasiparticles in confined geometries. Here, we study the dynamics of particlelike skyrmions under a…

介观与纳米尺度物理 · 物理学 2022-05-04 Xichao Zhang , Jing Xia , Xiaoxi Liu

Magnetic skyrmions with its topologically protected, nano-sized spin textures have already earned immense fame as information carriers due to their stability and low-current mobility. While ferromagnetic skyrmions suffer from a transverse…

强关联电子 · 物理学 2025-07-01 Rajdip Banerjee , Satyaki Kar

Controlled movement of nano-scale stable magnetic objects has been proposed as the foundation for a new generation of magnetic storage devices. Magnetic skyrmions, vortex-like spin textures stabilized by their topology are particularly…

Magnetic skyrmionium is a novel magnetization configuration with zero skyrmion number, which is composed by two skyrmions with opposite skyrmion number. Here, we study the dynamics of skyrmionium under an anisotropy gradient. We find that…

介观与纳米尺度物理 · 物理学 2019-09-04 Chengkun Song , Chendong Jin , Yunxu Ma , Jinshuai Wang , Haiyan Xia , Jianbo Wang , Qingfang Liu

We numerically examine the dynamics of individually dragged skyrmions interacting simultaneously with an array of other skyrmions and quenched disorder. For drives just above depinning, we observe a broad band noise signal with a $1/f$…

介观与纳米尺度物理 · 物理学 2024-04-23 C. J. O. Reichhardt , C. Reichhardt

The dynamics and stability of magnetic skyrmions within a nano-track with multiple confinements are investigated. Firstly, the motion of a single skyrmion under spin transfer torque (STT) is studied. By accurately adjusting the current…

应用物理 · 物理学 2023-02-09 W. Al Saidi , R. Sbiaa , S. Al Risi , F. Al Shanfari , N. Tiercelin , Y. Dusch

Magnetic skyrmion is a promising building block for developing information storage and computing devices. It can be stabilized in a ferromagnetic thin film with the Dzyaloshinskii-Moriya interaction (DMI). The moving ferromagnetic skyrmion…

介观与纳米尺度物理 · 物理学 2020-01-15 Jing Xia , Xichao Zhang , Motohiko Ezawa , Qiming Shao , Xiaoxi Liu , Yan Zhou

The late-stage ordering of interacting magnetic skyrmions is studied numerically through extensive Langevin molecular dynamics simulations. Defining skyrmion displacements that change the connectivity of cells obtained in a Voronoi…

统计力学 · 物理学 2020-10-27 James Stidham , Michel Pleimling

The understanding of the dynamical properties of skyrmion is a fundamental aspect for the realization of a competitive skyrmion based technology beyond CMOS. Most of the theoretical approaches are based on the approximation of a rigid…

Recently, there has been substantial interest in realizations of skyrmions, in particular in 2D systems due to increased stability resulting from reduced dimensionality. A stable skyrmion, representing the smallest realizable magnetic…

介观与纳米尺度物理 · 物理学 2016-03-02 Utkan Güngördü , Rabindra Nepal , Oleg A. Tretiakov , Kirill Belashchenko , Alexey A. Kovalev

Liquid crystal skyrmions are topologically protected spatially localized distortions of the director field which are fascinating from both fundamental mathematics and applied physics points of view. Skyrmions are realized in experimental…

软凝聚态物质 · 物理学 2023-04-26 Tomás Alvim , Margarida M. Telo da Gama , Mykola Tasinkevych

We study the dynamics of skyrmions under spin-transfer torque in Dzyaloshinskii-Moriya materials with easy-axis anisotropy. In particular, we study the motion of a topological skyrmion with skyrmion number $Q=1$ and a non-topological…

介观与纳米尺度物理 · 物理学 2015-08-21 Stavros Komineas , Nikos Papanicolaou

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…

强关联电子 · 物理学 2019-07-19 Bom Soo Kim

Magnetic skyrmions are topologically stable nanoscale particle-like objects that were discovered in 2009. Since that time, intense research interest has led to the identification of numerous compounds that support skyrmions over a range of…

介观与纳米尺度物理 · 物理学 2024-04-23 C. Reichhardt , C. J. O. Reichhardt , M. V. Milosevic

We study the Skyrmion dynamics in thin films under a temperature gradient. Our numerical simulations show that both single and multiple Skyrmions in a crystal move towards the high temperature region, which is contrary to particle…

介观与纳米尺度物理 · 物理学 2015-06-16 Lingyao Kong , Jiadong Zang