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相关论文: Dynamics of distorted skyrmions in strained chiral…

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The study of skyrmion/antiskyrmion motion in magnetic materials is very important in particular for the spintronics applications. In this work, we study the dynamics of isolated skyrmions and antiskyrmions in frustrated magnets driven by…

材料科学 · 物理学 2018-05-16 J. J. Liang , J. H. Yu , J. Chen , M. H. Qin , M. Zeng , X. B. Lu , X. S. Gao , J. M. Liu

In this work, we investigated the spin dynamics in a slab of chiral magnets induced by an alternating (ac) spin current. Periodic trajectories of the skyrmion in real space are discovered under the ac current as a result of the Magnus and…

介观与纳米尺度物理 · 物理学 2016-12-07 Rui Zhu , Yin-Yan Zhang

Magnetic skyrmions in chiral-lattice ferromagnets are currently attracting enormous research interest because of their potential applications in spintronic devices. However, they emerge in bulk specimens only in a narrow window of…

介观与纳米尺度物理 · 物理学 2020-03-17 Kohei Tanaka , Ryosuke Sugawara , Masahito Mochizuki

We study the dynamics of skyrmions in chiral magnets in the presence of a spin polarized current. The motion of skyrmions in the ferromagnetic background excites spin waves and contributes to additional damping. At a large current, the spin…

强关联电子 · 物理学 2013-05-15 Shi-Zeng Lin , Charles Reichhardt , Cristian D. Batista , Avadh Saxena

We study speed and skew deflection-angle dependence on skyrmion deformations of a tightly bound two-skyrmion state in a synthetic ferrimagnet. We condsider here, an in-plane uniaxial magnetocrystalline anisotropy-term in order to induce…

介观与纳米尺度物理 · 物理学 2019-03-13 P. E. Roy , Ruben M. Otxoa , C. Moutafis

Magnetic skyrmions are particle-like topological excitations recently discovered in chiral magnets. Their small size, topological protection and the ease with which they can be manipulated by electric currents generated much interest in…

介观与纳米尺度物理 · 物理学 2017-04-05 A. O. Leonov , M. Mostovoy

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

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…

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 skyrmions are nano-sized topologically non-trivial spin textures that can be moved by external stimuli such as spin currents and internal stimuli such as spatial gradients of a material parameter. Since the total energy of a…

介观与纳米尺度物理 · 物理学 2023-11-08 Ismael Ribeiro de Assis , Ingrid Mertig , Börge Göbel

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…

A strategy to drive skyrmion motion by a combination of an anisotropy gradient and spin Hall effect has recently been demonstrated. Here, we study the fundamental properties of this type of motion by combining micromagnetic simulations and…

介观与纳米尺度物理 · 物理学 2018-08-01 Riccardo Tomasello , Stavros Komineas , Giulio Siracusano , Mario Carpentieri , Giovanni Finocchio

We study the dynamics of skyrmions in a metallic chiral magnet. First we show that skyrmions can be created dynamically by destabilizing the ferromagnetic background state through a spin polarized current. We then treat skyrmions as rigid…

材料科学 · 物理学 2014-01-14 Shi-Zeng Lin , Charles Reichhardt , Cristian D. Batista , Avadh Saxena

Two recently developed methods of modelling chiral magnetic soliton elliptical instability are applied in two novel scenarios, the tilted ferromagnetic phase of chiral magnets dominated by easy-plane anisotropy and the general case of the…

介观与纳米尺度物理 · 物理学 2024-01-10 Bruno Barton-Singer

We study the equilibrium and dynamical properties of skyrmions in thin films of chiral magnets with oblique magnetic field. The shape of an individual skyrmion is non-circular and the skyrmion density decreases with the tilt angle from the…

材料科学 · 物理学 2015-11-11 Shi-Zeng Lin , Avadh Saxena

We theoretically study equilibrium and dynamic properties of nanosized magnetic skyrmions in thin magnetic films with broken inversion symmetry, where electric field couples to magnetization via spin-orbit coupling. Based on a…

介观与纳米尺度物理 · 物理学 2015-10-21 Pramey Upadhyaya , Guoqiang Yu , Pedram Khalili Amiri , Kang L. Wang

Magnetic skyrmions are topological spin textures that appear in magnets with broken spatial inversion symmetry via competition between the (anti)ferromagnetic exchange interactions and the Dzyaloshinskii-Moriya interactions in a magnetic…

介观与纳米尺度物理 · 物理学 2025-02-14 Yuto Ohki , Masahito Mochizuki

Magnetic skyrmions are particle-like topological excitations that recently generated much interest as candidates for future spintronic devices based on skyrmion small size, enhanced topological stability, and/or mutual interaction. Here we…

介观与纳米尺度物理 · 物理学 2019-08-28 Thomas T. J. Mutter , Andrey O. Leonov , Katsuya Inoue

Magnetic skyrmions, topological spin textures observed in chiral magnets, have attracted huge interest due to their applications in the field of spintronics. In this work we study the stability of circular isolated skyrmions in…

强关联电子 · 物理学 2019-03-06 S. A. Osorio , M. B. Sturla , H. D. Rosales , D. C. Cabra

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
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