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相关论文: Skyrmionium Dynamics and Stability on One Dimensio…

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We re-examine the internal structure of skyrmioniums stabilized in quasi-two-dimensional chiral magnets with easy-axis uniaxial anisotropy. Skyrmioniums are particle-like states of two nested skyrmions with opposite polarities contributing…

介观与纳米尺度物理 · 物理学 2024-04-17 Kaito Nakamura , Andrey O. Leonov

Magnetic skyrmions are topologically stable spin swirling particle like entities which are appealing for next generation spintronic devices. The expected low critical current density for the motion of skyrmions makes them potential…

Using particle-based simulations, we examine the collective dynamics of skyrmions interacting with periodic pinning arrays, focusing on the impact of the Magnus force on the sliding phases. As a function of increasing pinning strength, we…

介观与纳米尺度物理 · 物理学 2018-10-17 C. Reichhardt , D. Ray , C. J. O. Reichhardt

Using a particle based model, we investigate the skyrmion dynamical behavior in a channel where the upper wall contains divots of one depth and the lower wall contains divots of a different depth. Under an applied driving force, skyrmions…

介观与纳米尺度物理 · 物理学 2022-11-23 J. C. Bellizotti Souza , N. P. Vizarim , C. J. O. Reichhardt , C. Reichhardt , P. A. Venegas

In this work we compute the torque field present in a ferromagnet in contact with a metallic nanowire when a skyrmion is present. If the nanowire is narrow enough the current is carried by a single conduction band. In this regime the…

介观与纳米尺度物理 · 物理学 2020-10-07 Javier Osca , Bart Sorée

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

Ever increasing demand of skyrmion manipulation in nanodevices has brought up interesting research to 8 understand the stabilization of these topologically protected chiral structures. To understand the actual shape 9 and size of skyrmion…

介观与纳米尺度物理 · 物理学 2020-03-30 Gajanan Pradhan , Subhankar Bedanta

Skyrmions dynamics in the approximation of point-particle skyrmions is considered in the multiferroic insulators, where the spiral magnetic structure is accompanied by finite electric dipole moment. The skyrmion motion is studied in the…

介观与纳米尺度物理 · 物理学 2021-02-03 Pavel A. Andreev , Mariya Iv. Trukhanova

Magnetic skyrmions hold great promise for realizing compact and stable memory devices that can be manipulated at very low energy costs via electronic current densities. In this work, we extend a recently introduced method to describe…

介观与纳米尺度物理 · 物理学 2023-12-20 Emil Östberg , Emil Viñas Boström , Claudio Verdozzi

Skyrmions, novel topologically stable spin vortices, hold promise for next-generation magnetic storage due to their nanoscale domains to enable high information storage density and their low threshold for current-driven motion to enable…

介观与纳米尺度物理 · 物理学 2015-10-28 Dong Liang , John P. DeGrave , Matthew J. Stolt , Yoshinori Tokura , Song Jin

We study the spectral characteristics of spin current nano-oscillators based on the Pt/[Co/Ni] magnetic multilayer with perpendicular magnetic anisotropy. By varying the applied magnetic field and current, both localized and propagating…

材料科学 · 物理学 2015-04-02 Ronghua Liu , WengLee Lim , Sergei Urazhdin

Using atomistic simulations, we have investigated the transport and annihilation of skyrmions interacting with a funnel array under a current applied perpendicular to the funnel axis. We find that transport without annihilation is possible…

介观与纳米尺度物理 · 物理学 2023-10-19 F. S. Rocha , J. C. Bellizotti Souza , N. P. Vizarim , C. J. O. Reichhardt , C. Reichhardt , P. A. Venegas

Magnetic skyrmions are chiral spin textures that hold great promise as nanoscale information carriers. Since their first observation at room temperature, progress has been made in their current-induced manipulation, with fast motion…

The magnetic skyrmionium is a skyrmion-like structure but carries a zero net skyrmion number, which can be used as a building block for non-volatile information processing devices. Here, we study the dynamics of a magnetic skyrmionium…

介观与纳米尺度物理 · 物理学 2018-04-05 Sai Li , Jing Xia , Xichao Zhang , Motohiko Ezawa , Wang Kang , Xiaoxi Liu , Yan Zhou , Weisheng Zhao

We examine the dynamics of an individually driven skyrmion moving through a background lattice of skyrmions coupled to a 2D periodic substrate as we vary the ratio of the number of skyrmions to the number of pinning sites across…

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

We address the problem of how magnetic skyrmions can propagate along a guided direction by parametric pumping. As evidenced by our micromagnetic simulations, skyrmions can hardly be driven by either a static electric field or a static…

介观与纳米尺度物理 · 物理学 2019-03-07 H. Y. Yuan , X. S. Wang , Man-Hong Yung , X. R. Wang

Magnetic skyrmions are swirling magnetic textures that can be efficiently driven with spin-orbit torques with a deflected trajectory. However, pinning slows skyrmions down and alters their trajectory, which prevents a quantitative…

Topological defects in magnetism have attracted great attention due to fundamental research interests and potential novel spintronics applications. Rich examples of topological defects can be found in nanoscale non-uniform spin textures,…

材料科学 · 物理学 2017-10-11 Siying Huang , Chao Zhou , Gong Chen , Hongyi Shen , Andreas K. Schmid , Kai Liu , Yizheng Wu

Searching for new methods to enhance the stability of antiferromagnetic (AFM) skyrmion during its motion is an important issue for AFM spintronic devices. Herein, the spin polarized current-induced dynamics of a distorted AFM skyrmion is…

Recently spin textures called skyrmions have been discovered in certain chiral magnetic materials without spatial inversion symmetry, and have attracted enormous attention due to their promising application in spintronics since only a low…

强关联电子 · 物理学 2013-06-18 Shi-Zeng Lin , Charles Reichhardt , Cristian D. Batista , Avadh Saxena