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Magnetic skyrmions have potential applications in next-generation spintronics devices with ultralow energy consumption. In this work, the current-driven skyrmion motion in a narrow ferromagnetic nanotrack with voltage-controlled magnetic…

介观与纳米尺度物理 · 物理学 2018-09-24 Junlin Wang , Jing Xia , Xichao Zhang , G. P. Zhao , Jing Wu , Yongbing Xu , Zhigang Zou , Yan Zhou

Magnetic skyrmions are vortex-like, swirls of magnetisation whose topological protection and particle-like nature have suggested them to be suitable for a number of novel spintronic devices. One such application is skyrmionic computing,…

Magnetic skyrmions are promising candidates as elementary nanoscale bits in logic-in-memory devices, intrinsically merging high density memory and computing capabilities. Here we exploit the dynamics of skyrmions interacting with anisotropy…

介观与纳米尺度物理 · 物理学 2022-09-07 Naveen Sisodia , Johan Pelloux-Prayer , Liliana D. Buda-Prejbeanu , Lorena Anghel , Gilles Gaudin , Olivier Boulle

Skyrmion is a topologically protected spin texture excited in magnetic thin films. The radii of skyrmions are typically 10-100 nm. Because of the size, the skyrmion is expected to be a candidate for memory and novel-device usages. To…

介观与纳米尺度物理 · 物理学 2020-05-12 E. Tamura , C. Liu , S. Miki , J. Cho , M. Goto , H. Nomura , R. Nakatani , Y. Suzuki

Magnetic skyrmions are whirl-like nano-objects with topological protection. When driven by direct currents (DC), skyrmions move but experience a transverse deflection. This so-called skyrmion Hall effect is often regarded a drawback for…

介观与纳米尺度物理 · 物理学 2021-02-05 Börge Göbel , Ingrid Mertig

Magnetic skyrmions are chiral spin textures with attractive features, such as ultra-small size, solitonic nature, and easy mobility with small electrical currents that make them promising as information-carrying bits in low-power…

介观与纳米尺度物理 · 物理学 2022-06-17 Md Golam Morshed , Hamed Vakili , Avik W. Ghosh

Magnetic skyrmions are nano-scale spin textures whose stability, size and ease of manipulation make them strong contenders for next generation data and logic applications. Here we illustrate fine motion control of skyrmions, we show how…

应用物理 · 物理学 2023-04-12 Charles Kind

Magnetic skyrmion, topologically non-trivial spin texture, has been considered as promising information carrier in future electronic devices because of its nanoscale size, low depinning current density and high motion velocity. Despite the…

应用物理 · 物理学 2020-05-27 Haoyang Zhang , Daoqian Zhu , Wang Kang , Youguang Zhang , Weisheng Zhao

In skyrmion-based racetrack memories, the information encoded by skyrmions may be destroyed due to the skyrmion Hall effect, which can be surmounted by using synthetic antiferromagnetic racetracks. Hence, the manipulation of skyrmions in…

Skyrmions have been proposed as new information carriers in racetrack memory devices. To realise such devices, a small size; high speed of propagation; and minimal skyrmion Hall angle are required. Synthetic antiferromagnets (SAFs) present…

介观与纳米尺度物理 · 物理学 2025-08-01 Christopher E. A. Barker , Charles Parton-Barr , Christopher H. Marrows , Olga Kazakova , Craig Barton

A magnetic skyrmionium (also called 2$\pi$-skyrmion) can be understood as a skyrmion - a topologically non-trivial magnetic whirl - which is situated in the center of a second skyrmion with reversed magnetization. Here, we propose a new…

强关联电子 · 物理学 2019-08-22 Börge Göbel , Alexander F. Schäffer , Jamal Berakdar , Ingrid Mertig , Stuart S. P. Parkin

Magnetic skyrmions are promising information carriers for building future high-density and high-speed spintronic devices. However, to achieve a current-driven high-speed skyrmion motion, the required driving current density is usually very…

A storage scheme based on racetrack memory, where the information can be coded in a domain or a skyrmion, seems to be an alternative to conventional hard disk drive for high density storage. Here, we perform a full micromagnetic study of…

材料科学 · 物理学 2017-08-02 R. Tomasello , V. Puliafito , E. Martinez , A. Manchon , M. Ricci , M. Carpentieri , G. Finocchio

Magnetic skyrmions, which are topological particle-like excitations in ferromagnets, have attracted a lot of attention recently. Skyrmionics is an attempt to use magnetic skyrmions as information carriers in next generation spintronic…

介观与纳米尺度物理 · 物理学 2015-03-26 Xichao Zhang , Motohiko Ezawa , Yan Zhou

Magnetic skyrmions are exciting candidates for energy-efficient computing due to their non-volatility, detectability,and mobility. A recent proposal within the paradigm of reversible computing enables large-scale circuits composed…

介观与纳米尺度物理 · 物理学 2021-05-14 Benjamin W. Walker , Can Cui , Felipe Garcia-Sanchez , Jean Anne C. Incorvia , Xuan Hu , Joseph S. Friedman

Solitonic magnetic excitations such as domain walls and, specifically, skyrmionics enable the possibility of compact, high density, ultrafast,all-electronic, low-energy devices, which is the basis for the emerging area of skyrmionics. The…

Materials hosting magnetic skyrmions at room temperature could enable new computing architectures as well as compact and energetically efficient magnetic storage such as racetrack memories. In a racetrack device, information is coded by 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

Magnetic racetrack memory has significantly evolved and developed since its first experimental verification and is considered as one of the most promising candidates for future high-density on-chip solid state memory. However, the lack of a…

介观与纳米尺度物理 · 物理学 2023-05-09 Shen Li , Xiaoyang Lin , Pingzhi Li , Suteng Zhao , Zhizhong Si , Guodong Wei , Bert Koopmans , Reinoud Lavrijsen , Weisheng Zhao

The growth in data needs of modern applications has created significant challenges for modern systems leading a "memory wall." Spintronic Domain Wall Memory (DWM), related to Spin-Transfer Torque Memory (STT-MRAM), provides near-SRAM…

新兴技术 · 计算机科学 2022-08-02 Sebastien Ollivier , Stephen Longofono , Prayash Dutta , Jingtong Hu , Sanjukta Bhanja , Alex K. Jones