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Magnetic skyrmions are nanoscale spin whirlpools that promise breakthroughs in future spintronic applications. Controlled generation of magnetic skyrmions by electric current is crucial for this purpose. While previous studies have…

材料科学 · 物理学 2022-11-29 Xuebing Zhao , Jin Tang , Ke Pei , Weiwei Wang , Shi-Zeng Lin , Haifeng Du , Mingliang Tian , Renchao Che

Magnetic skyrmions are nanoscale spin textures touted as next-generation computing elements. When subjected to lateral currents, skyrmions move at considerable speeds. Their topological charge results in an additional transverse deflection…

Magnetic skyrmions are topological spin textures promising for future high-density and nonvolatile memory. It is crucial to understand the current-driven skyrmion dynamics in the presence of deformation, of which an analytical model,…

介观与纳米尺度物理 · 物理学 2022-01-13 Zehan Chen , Xichao Zhang , Yan Zhou , Qiming Shao

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…

介观与纳米尺度物理 · 物理学 2020-01-08 Ya-qing Zheng , Yong Wang

The increasing need for efficient thermal management in nanoelectronics requires innovative thermal sensing solutions, as conventional sensors often exhibit nonlinear responses, low sensitivity, and complex calibration. We predict a…

Magnetic skyrmions, as a whirling spin texture with axisymmetry, cannot be propelled by a uniform magnetic field. Therefore, reported skyrmion motions have been induced using other sorts of stimuli; typically, electric currents in magnetic…

介观与纳米尺度物理 · 物理学 2022-10-18 Xiangjun Xing , Yan Zhou

Magnetic skyrmions hold promise for spintronic devices. To explore the dynamical properties of skyrmions in devices, a nanoscale method to image spin textures in response to a stimulus is essential. Here, we apply a technique for operando…

介观与纳米尺度物理 · 物理学 2021-02-03 Albert M. Park , Zhen Chen , Xiyue S. Zhang , Lijun Zhu , David A. Muller , Gregory D. Fuchs

Micromagnetic simulations were employed to investigate the dynamics of a single skyrmion within an antiferromagnetic nanostripe with spatially engineered magnetic properties. This study investigates skyrmion motion within an…

介观与纳米尺度物理 · 物理学 2025-01-13 R. C. Silva , R. L. Silva

We have studied the effects of electrical current pulses on skyrmion formation in a series of Co/Ni/Pt-based multilayers. Transmission X-ray microscopy reveals that by applying electrical current pulses of duration and current density on…

材料科学 · 物理学 2021-05-24 Jeffrey A. Brock , Sergio A. Montoya , Mi-Young Im , Eric E. Fullerton

When magnetic skyrmions move under spin orbit torque in magnetic nanowires, they experience a skyrmion Hall effect, which pushes them towards the nanowire edge where they risk being annihilated; this puts an upper limit on how fast they can…

介观与纳米尺度物理 · 物理学 2020-06-23 Xiangjun Xing , Johan Åkerman , Yan Zhou

Magnetic skyrmions are particle-like topological spin configurations, which can carry binary information and thus are promising building blocks for future spintronic devices. In this work, we investigate the relationship between the…

应用物理 · 物理学 2020-03-25 Xue Liang , Xichao Zhang , Jing Xia , Motohiko Ezawa , Yuelei Zhao , Guoping Zhao , Yan Zhou

The static and dynamic properties of skyrmions have recently received increased attention due to the potential application of skyrmions as information carriers and for unconventional computing. While the current-driven dynamics has been…

Skyrmions are nano-sized magnetic whirls attractive for spintronic applications due to their innate stability. They can emulate the characteristic behavior of various spintronic and electronic devices such as spin-torque nano-oscillators,…

介观与纳米尺度物理 · 物理学 2025-10-08 Ismael Ribeiro de Assis , Ingrid Mertig , Börge Göbel

Magnetic skyrmions are textures behaving as quasiparticles which are topologically different from other states. Their discovery in systems with broken inversion symmetry sparked the search for materials containing such magnetic phase at…

Magnetic skyrmions are topologically-protected spin textures with attractive properties suitable for high-density and low-power spintronic device applications. Much effort has been dedicated to understanding the dynamical behaviours of the…

Magnetic skyrmions have been in the spotlight since their observation in technologically relevant systems at room temperature. More recently, there has been increasing interest in additional quasiparticles that may exist as…

介观与纳米尺度物理 · 物理学 2023-02-08 Runze Chen , Yu Li , Vasilis F. Pavlidis , Christoforos Moutafis

In chiral magnets, localized topological magnetic whirls, magnetic skyrmions, can be moved by spin polarized electric currents. Upon increasing the current strength, with prospects for high-speed skyrmion motion for spintronics applications…

介观与纳米尺度物理 · 物理学 2020-06-22 Jan Masell , Davi R. Rodrigues , Ben F. McKeever , Karin Everschor-Sitte

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

The advancement of next-generation magnetic devices depends on fast manipulating magnetic microstructures on the nanoscale. A universal method is presented for rapidly and reliably generating, controlling, and driving nano-scale…

介观与纳米尺度物理 · 物理学 2025-01-10 Haiming Dong , Panpan Fu , Yifeng Duan , Kai Chang

Magnetic skyrmions are topologically protected states that are very promising for the design of the next generation of ultralow-power electronic devices. In this letter, we propose a magnetic tunnel junction based spin-transfer torque diode…

介观与纳米尺度物理 · 物理学 2016-01-20 G. Finocchio , M. Ricci , R. Tomasello , A. Giordano , M. Lanuzza , V. Puliafito , P. Burrascano , B. Azzerboni , M. Carpentieri