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相关论文: Skyrmion dynamics in moir\'e magnets

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Magnetic skyrmions have been proposed as promising candidates for storing information due to their high stability and easy manipulation by spin-polarized currents. Here, we study how these properties are influenced by the interlayer…

介观与纳米尺度物理 · 物理学 2026-02-19 Tim Matthies , Levente Rózsa , Roland Wiesendanger , Elena Y. Vedmedenko

We investigate the magnetic structures in a bilayer magnetic system with the locally inverted interlayer coupling region using Monte Carlo simulation. Stabilization of multiple magnetic structures including the magnetic skyrmion is possible…

介观与纳米尺度物理 · 物理学 2020-02-26 Chanki Lee , Hee Young Kwon , Nam Jun Kim , Han Gyu Yoon , Chiho Song , Doo Bong Lee , Jun Woo Choi , Young-Woo Son , Changyeon Won

We explore the skyrmion formation and control possibilities in 2D magnets from the ubiquitous moir\'e pattern in vdW heterostructures. Using the example of a ferromagnetic monolayer on an antiferromagnetic substrate, we demonstrate a new…

介观与纳米尺度物理 · 物理学 2018-12-13 Qingjun Tong , Fei Liu , Jiang Xiao , Wang Yao

Magnetic skyrmions in 2D chiral magnets are in general stabilized by a combination of Dzyaloshinskii-Moriya interaction and external magnetic field. Here, we show that skyrmions can also be stabilized in twisted moir\'e superlattices in the…

强关联电子 · 物理学 2021-04-21 Muhammad Akram , Onur Erten

Domain wall skyrmions are skyrmions trapped inside a domain wall. We investigate domain wall skyrmions in chiral magnets using a fully analytic approach. Treating the Dzyaloshinskii-Moriya (DM) interaction perturbatively, we construct the…

介观与纳米尺度物理 · 物理学 2023-02-08 Calum Ross , Muneto Nitta

Chiral magnetism, wherein there is a preferred sense of rotation of the magnetization, has become a key aspect for future spintronic applications. It determines the chiral nature of magnetic textures, such as skyrmions, domain walls or spin…

It is well established that the spin-orbit interaction in heavy metal/ferromagnet heterostructures leads to a significant interfacial Dzyaloshinskii-Moriya Interaction (DMI) that modifies the internal structure of magnetic domain walls…

介观与纳米尺度物理 · 物理学 2019-05-22 Ran Cheng , Maxwell Li , Arjun Sapkota , Anish Rai , Ashok Pokhrel , Tim Mewes , Claudia Mewes , Di Xiao , Marc De Graef , Vincent Sokalski

We present a comprehensive theory of the magnetic phases in twisted bilayer Cr-trihalides through a combination of first-principles calculations and atomistic simulations. We show that the stacking-dependent interlayer exchange leads to an…

强关联电子 · 物理学 2021-08-13 Muhammad Akram , Harrison LaBollita , Dibyendu Dey , Jesse Kapeghian , Onur Erten , Antia S. Botana

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…

We have investigated an analytic formula of the 1-dimensional magnetic skyrmion dynamics under external magnetic field gradient. We find excellent agreement between the analytical model and micromagnetic simulation results for various…

$90^\circ$ pinned magnetic domain walls can be observed in thin magnetic layers attached to a ferroelectric substrate. The main stabilization mechanism of the noncollinear magnetic texture is the strain transfer which is responsible for…

介观与纳米尺度物理 · 物理学 2022-05-17 Pavel Baláž

We present an analytical theory to describe three-dimensional magnetic textures in perpendicularly magnetized magnetic multilayers that arise in the presence of magnetostatic interactions and the Dzyaloshinskii-Moriya interaction (DMI). We…

材料科学 · 物理学 2018-09-06 Ivan Lemesh , Geoffrey S. D. Beach

The dynamics of magnetic skyrmion driven by spin-polarized current is theoretically studied in the chiral ferromagnetic film with spatially modulated Dzyaloshinskii-Moriya interaction. Three cases including linear, sinusoidal, and periodic…

介观与纳米尺度物理 · 物理学 2019-01-09 Liping Zhou , Ren Qin , Ya-qing Zheng , Yong Wang

Magnetic skyrmions are promising candidates for the next generation of spintronic devices due to their small size and topologically protected structure. One challenge for using these magnetic states in applications lies on controlling the…

介观与纳米尺度物理 · 物理学 2018-10-19 J. Brandão , D. A. Dugato , R. L. Seeger , J. C. Denardin , T. J. A. Mori , J. C. Cezar

The instability toward a magnetic skyrmion crystal in centrosymmetric trilayer magnets is investigated based on a spin model with layer-dependent Dzayloshinskii-Moriya interaction. We find various types of skyrmion crystal phases with…

介观与纳米尺度物理 · 物理学 2022-06-10 Satoru Hayami

We theoretically study a stabilization mechanism of the skyrmion crystal in centrosymmetric magnets with a bilayer structure. We show that the interplay between a layer-dependent staggered Dzyaloshinskii-Moriya interaction that arises from…

强关联电子 · 物理学 2022-01-10 Satoru Hayami

Twisted magnetic van der Waals materials provide a flexible platform to engineer new forms of unconventional magnetism. Here we demonstrate the emergence of electrically tunable topological moir\'e magnetism in twisted bilayers of the…

强关联电子 · 物理学 2025-11-18 Tiago V. C. Antão , Jose L. Lado , Adolfo O. Fumega

Magnetic solitons have recently attracted significant attention due to their intricate physical properties and potential applications in information processing. The majority of the studies in this field, however, are focused on a particular…

Magnetization dynamics driven by an electric field could provide long-term benefits to information technologies because of its ultralow power consumption. Meanwhile, the Dzyaloshinskii-Moriya interaction in interfacially asymmetric…

介观与纳米尺度物理 · 物理学 2019-01-23 Chuang Ma , Xichao Zhang , Jing Xia , Motohiko Ezawa , Wanjun Jiang , Teruo Ono , S. N. Piramanayagam , Akimitsu Morisako , Yan Zhou , Xiaoxi Liu

Magnetic skyrmions are topologically protected spin textures with potential applications in memory and logic devices. Skyrmions have been commonly observed in systems with Dzyaloshinskii-Moriya interaction due to broken inversion symmetry.…

介观与纳米尺度物理 · 物理学 2024-05-21 Jyotirish Das , Muhammad Akram , Onur Erten
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