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Magnetic skyrmions are particle-like textures in the magnetization, characterized by a topological winding number. Nanometer-scale skyrmions have been observed at room temperature in magnetic multilayer structures. The combination of small…

Strongly Correlated Electrons · Physics 2017-02-14 Jan Müller

Increasing amounts of information force the continuous improvement of information storage and processing technologies, further device miniaturization, and their efficiency increase. Magnetic skyrmions, topological quasiparticles, and the…

Mesoscale and Nanoscale Physics · Physics 2022-04-13 Mateusz Zelent , Mathieu Moalic , Michal Mruczkiewicz , Xiaoguang Li , Yan Zhou , Maciej Krawczyk

Topological protection precludes a continuous deformation between topologically inequivalent configurations in a continuum. Motivated by this concept, magnetic skyrmions, topologically nontrivial spin textures, are expected to exhibit the…

Magnetic skyrmions are spin swirls that possess topological nontriviality and are considered particle-like entities. They are distinguished by an integer topological charge Q. The presence of skyrmion bundles provides an opportunity to…

Materials Science · Physics 2023-11-30 Jin Tang , Yaodong Wu , Jialiang Jiang , Lingyao Kong , Shouguo Wang , Mingliang Tian , Haifeng Du

The discovery of magnetic skyrmion bubbles in centrosymmetric magnets has been receiving increasing interest from the research community, due to the fascinating physics of topological spin textures and its possible applications to…

Mesoscale and Nanoscale Physics · Physics 2019-12-03 Zhipeng Hou , Qiang Zhang , Guizhou Xu , Senfu Zhang , Chen Gong , Bei Ding , Hang Li , Feng Xu , Yuan Yao , Enke Liu , Guangheng Wu , Xi-xiang Zhang , Wenhong Wang

Magnetic skyrmions have attracted enormous research interest since their discovery a decade ago. The non-trivial real-space topology of these nano-whirls leads to fundamentally interesting and technologically relevant consequences - the…

Mesoscale and Nanoscale Physics · Physics 2021-01-18 Börge Göbel , Ingrid Mertig , Oleg A. Tretiakov

We report dynamics of skyrmion bubbles driven by spin-transfer torque in achiral ferromagnetic nanostripes using micromagnetic simulations. In a three-dimensional uniaxial ferromagnet with a quality factor that is smaller than 1, the…

Materials Science · Physics 2022-05-10 Yaodong Wu , Jialiang Jiang , Jin Tang

Thin-film sub-5 nm magnetic skyrmions constitute an ultimate scaling alternative for future digital data storage. Skyrmions are robust non-collinear spin-textures that can be moved and manipulated by small electrical currents. We show here…

Mesoscale and Nanoscale Physics · Physics 2015-10-20 Dax M. Crum , Mohammed Bouhassoune , Juba Bouaziz , Benedikt Schweflinghaus , Stefan Blügel , Samir Lounis

Topologically protected nanoscale spin textures, such as magnetic skyrmions, have attracted significant interest for spintronics applications. While skyrmions in noncentrosymmetric materials are known to be stabilized by…

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…

Mesoscale and Nanoscale Physics · Physics 2016-08-08 Xiangjun Xing , Philip W. T. Pong , Yan Zhou

Polar bubble domains are complex topological defects akin to magnetic skyrmions that can spontaneously form in ferroelectric thin films and superlattices. They can be deterministically written and deleted and exhibit a set of properties,…

Materials Science · Physics 2023-03-27 S. Prokhorenko , Y. Nahas , Q. Zhang , V. Govinden , N. Valanoor , L. Bellaiche

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…

Skyrmions are topologically protected non-collinear magnetic structures. Their stability and dynamics, arising from their topological character, have made them ideal information carriers e.g. in racetrack memories. The success of such a…

Magnetic skyrmions and their anti-particles, the antiskyrmions, are stable magnetic solitons existing down to the nanometer scale. Their stability and size as well as the possibility to propel them by, e.g., electric currents make them…

Mesoscale and Nanoscale Physics · Physics 2022-09-07 Pia Siegl , Martin Stier , Alexander F. Schäffer , Elena Y. Vedmedenko , Thore Posske , Roland Wiesendanger , Michael Thorwart

Spin transfer torque (STT) affords magnetic nanodevices the potential to act as memory, computing, and microwave elements operating at ultra-low currents and at a low energy cost. Spin transfer torque is not only effective in manipulating…

Mesoscale and Nanoscale Physics · Physics 2014-09-19 Y. Zhou , E. Iacocca , A. Awad , R. K. Dumas , F. C. Zhang , H. B. Braun , J. Åkerman

Magnetic skyrmions are small swirling topological defects in the magnetization texture stabilized by the protection due to their topology. In most cases they are induced by chiral interactions between atomic spins existing in…

Materials Science · Physics 2017-12-21 Albert Fert , Nicolas Reyren , Vincent Cros

Nanoscale topologically non-trivial spin textures, such as magnetic skyrmions, have been identified as promising candidates for the transport and storage of information for spintronic applications, notably magnetic racetrack memory devices.…

Topological solitons are crucial to many branches of physics, such as models of fundamental particles in quantum field theory, information carriers in nonlinear optics, and elementary entities in quantum and classical computations. Chiral…

Mesoscale and Nanoscale Physics · Physics 2023-05-24 X. R. Wang , X. C. Hu

Magnetic skyrmions are topologically stable whirlpool-like spin textures that offer great promise as information carriers for future ultra-dense memory and logic devices1-4. To enable such applications, particular attention has been focused…

Precise positioning of topological defects is essential for racetrack memories, where their positions along a magnetic nanotrack encode information. Traditional methods achieve nanometric precision by engineering pinning landscapes that…

Strongly Correlated Electrons · Physics 2026-03-04 Luca Maranzana , Maxim Mostovoy , Naoto Nagaosa , Sergey Artyukhin
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