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相关论文: Nonzero Skyrmion Hall Effect in Topologically Triv…

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We introduce a topologically distinct skyrmion, termed a spin-flux skyrmion, which shares the same real-space magnetization profile as a conventional skyrmion but differs fundamentally in its underlying topological structure. This…

介观与纳米尺度物理 · 物理学 2025-11-25 Sandip Bera , Sajeev John

Integrating topologically stabilized magnetic textures such as skyrmions as nanoscale information carriers into future technologies requires the reliable control by electric currents. Here, we uncover that the relevant skyrmion Hall effect,…

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 demonstrate the emergence of an anomalous Hall effect in chiral magnetic textures which is neither proportional to the net magnetization nor to the well-known emergent magnetic field that is responsible for the topological Hall effect.…

介观与纳米尺度物理 · 物理学 2020-03-11 Fabian R. Lux , Frank Freimuth , Stefan Blügel , Yuriy Mokrousov

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

Magnetic skyrmions are envisioned as carriers of information in racetrack storage devices. Unfavorably, the skyrmion Hall effect hinders the fast propagation of skyrmions along an applied electric current and limits the device's maximum…

强关联电子 · 物理学 2019-01-30 Börge Göbel , Alexander Mook , Jürgen Henk , Ingrid Mertig

When a magnon passes through two-dimensional magnetic textures, it will experience a fictitious magnetic field originating from the $3\times 3$ skew-symmetric gauge fields. To date, only one of the three independent components of the gauge…

介观与纳米尺度物理 · 物理学 2023-01-10 Zhejunyu Jin , Xianglong Yao , Zhenyu Wang , H. Y. Yuan , Zhaozhuo Zeng , Yunshan Cao , Peng Yan

To enable functional skyrmion based spintronic devices, the controllable generation and manipulation of skyrmions is essential. While the generation of skyrmions by using a magnetic geometrical constriction has already been demonstrated,…

Skyrmions are topologically nontrivial, magnetic quasi-particles, that are characterized by a topological charge. A regular array of skyrmions - a skyrmion crystal (SkX) - features the topological Hall effect (THE) of electrons, that, in…

强关联电子 · 物理学 2017-08-16 Börge Göbel , Alexander Mook , Jürgen Henk , Ingrid Mertig

When electrons are driven through unconventional magnetic structures, such as skyrmions, they experience emergent electromagnetic fields that originate several Hall effects. Independently, ground state emergent magnetic fields can also lead…

介观与纳米尺度物理 · 物理学 2016-12-23 Manuel dos Santos Dias , Juba Bouaziz , Mohammed Bouhassoune , Stefan Blügel , Samir Lounis

Topologically stable nontrivial spin structures, such as skyrmions and antiskyrmions, display a large topological Hall effect owing to their quantized topological charge. Here, we present the finding of a large topological Hall effect…

强关联电子 · 物理学 2019-04-04 Subir Sen , Charanpreet Singh , Prashanta K. Mukharjee , Ramesh Nath , Ajaya K. Nayak

We consider topological Hall effect (THE) in thin ferromagnetic films due to electron scattering on magnetic skyrmions in the presence of the relatively strong external magnetic field. We account for the effect of the magnetic field on a…

介观与纳米尺度物理 · 物理学 2018-12-12 K. S. Denisov , I. V. Rozhansky , M. N. Potkina , I. S. Lobanov , E. Lahderanta , V. M. Uzdin

A stable skyrmion, representing the smallest realizable magnetic texture, could be an ideal element for ultra-dense magnetic memories. Here, we review recent progress in the field of skyrmionics, which is concerned with studies of tiny…

介观与纳米尺度物理 · 物理学 2018-10-01 Alexey A. Kovalev , Shane Sandhoefner

The quantum anomalous Hall effect has been theoretically predicted and experimentally verified in magnetic topological insulators. In addition, the surface states of these materials exhibit a hedgehog-like "spin" texture in momentum space.…

介观与纳米尺度物理 · 物理学 2017-04-07 Narayan Mohanta , Arno P. Kampf , Thilo Kopp

Skyrmions and domain walls are typical spin textures of significant technological relevance to magnetic memory and logic applications, where they are used as carriers of information. The unique topology of skyrmions makes them to display…

介观与纳米尺度物理 · 物理学 2016-08-08 Xiangjun Xing , Philip W. T. Pong , Yan Zhou

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

Magnetic skyrmions can be driven by an applied spin-polarized electron current which exerts a spin-transfer torque on the localized spins constituting the skyrmion. However, the longitudinal dynamics is plagued by the skyrmion Hall effect…

介观与纳米尺度物理 · 物理学 2020-05-27 J. Plettenberg , M. Stier , M. Thorwart

Synthetic antiferromagnetic (SAF) skyrmions have emerged as promising candidates for next-generation high-speed and highly integrated spintronic devices, owing to their exceptional properties such as high driving velocity, nanoscale…

We carry out a throughout study of the topological Hall and topological spin Hall effects in disordered skyrmionic systems: the dimensionless (spin) Hall angles are evaluated across the energy band structure in the multiprobe…

介观与纳米尺度物理 · 物理学 2017-03-01 P. B. N'diaye , C. A. Akosa , A. Manchon

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