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Simulations of magnetization dynamics in a multiscale environment enable rapid evaluation of the Landau-Lifshitz-Gilbert equation in a mesoscopic sample with nanoscopic accuracy in areas where such accuracy is required. We have developed a…

Computational Physics · Physics 2016-11-28 Andrea De Lucia , Benjamin Krüger , Oleg A. Tretiakov , Mathias Kläui

The dynamics of a single magnetic Skyrmion in an atomic spin system under the influence of Scanning Tunneling Microscope is investigated by computer simulations solving the Landau-Lifshitz-Gilbert equation. Two possible scenarios are…

Other Condensed Matter · Physics 2017-02-22 R. Wieser

Recent developments in the magnetization dynamics in spin textures, particularly skyrmions, offer promising new directions for magnetic storage technologies and spintronics. Skyrmions, characterized by their topological protection and…

Materials Science · Physics 2024-08-21 Satadeep Bhattacharjee , Seung-Cheol Lee

Magnetic skyrmions are topological magnetic spin structures exhibiting particle-like behaviour. They are of strong interest from a fundamental viewpoint and for application, where they have potential to act as information carriers in future…

Magnetic skyrmions are key candidates for novel memory, logic, and neuromorphic computing. An essential property is their topological protection caused by the whirling spin texture as described by a robust integer winding number. However,…

Magnetic skyrmions have so far been treated as two-dimensional spin structures characterized by a topological winding number describing the rotation of spins across the skyrmion. However, in real systems with a finite thickness of the…

Magnetic skyrmions hold promise for spintronic devices. To explore the dynamical properties of skyrmions in devices, a nanoscale method to image spin textures in response to a stimulus is essential. Here, we apply a technique for operando…

Mesoscale and Nanoscale Physics · Physics 2021-02-03 Albert M. Park , Zhen Chen , Xiyue S. Zhang , Lijun Zhu , David A. Muller , Gregory D. Fuchs

Magnetic skyrmions are localized swirls of magnetization with a non-trivial topological winding number. This winding increases their robustness to superparamagnetism and gives rise to a myriad of novel dynamical properties, making them…

Mesoscale and Nanoscale Physics · Physics 2020-04-29 Richard Brearton , Gerrit van der Laan , Thorsten Hesjedal

Optical skyrmions have recently been constructed by tailoring electric or spin field distributions through the interference of multiple surface plasmon polaritons, offering promising features for advanced information processing, transport…

Optics · Physics 2022-01-11 Zi-Lan Deng , Tan Shi , Alex Krasnok , Xiangping Li , Andrea Alù

Symmetry breaking together with strong spin-orbit interaction give rise to many exciting phenomena within condensed matter physics. A recent example is the existence of chiral spin textures, which are observed in magnetic systems lacking…

Mesoscale and Nanoscale Physics · Physics 2017-09-26 Wanjun Jiang , Gong Chen , Kai Liu , Jiadong Zang , Suzanne G. E. te Velthuis , Axel Hoffmann

Skyrmions are emerging topological spin structures that are potentially revolutionary for future data storage and spintronics applications. The existence and stability of skyrmions in magnetic materials is usually associated to the presence…

Mesoscale and Nanoscale Physics · Physics 2018-03-14 R. L. Novak , F. Garcia , E. R. P. Novais , J. P. Sinnecker , A. P. Guimarães

The magnetic skyrmion structure can be formed in the chiral magnets (CMs) with strong Dzyaloshinskii-Moriya interactions. In this work, we propose a way of artificially tailoring the topological details of the skyrmion such as its radial…

Mesoscale and Nanoscale Physics · Physics 2016-10-06 Yin-Yan Zhang , Rui Zhu

Nanoscale magnetic skyrmions have interesting static and transport properties that make them candidates for future spintronic devices. Control and manipulation of the size and behavior of skyrmions is thus of crucial importance. Using a…

Mesoscale and Nanoscale Physics · Physics 2017-12-13 Steven S. -L. Zhang , C. Phatak , A. K. Petford-Long , O. G. Heinonen

In a broad range of applied magnetic fields and material parameters isolated magnetic skyrmions condense into skyrmion lattices. While the geometry of isolated skyrmions and their lattice counterparts strongly depend on field and…

Mesoscale and Nanoscale Physics · Physics 2016-01-20 A. Siemens , Y. Zhang , J. Hagemeister , E. Y. Vedmedenko , R. Wiesendanger

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,…

Mesoscale and Nanoscale Physics · Physics 2022-01-13 Zehan Chen , Xichao Zhang , Yan Zhou , Qiming Shao

Thermal collapse of an isolated skyrmion on a two-dimensional spin lattice has been investigated. The method is based upon solution of the system of stochastic Landau-Lifshitz-Gilbert equations for up $10^4$ spins. Recently developed…

Mesoscale and Nanoscale Physics · Physics 2020-01-29 Amel Derras-Chouk , Eugene M. Chudnovsky , Dmitry A. Garanin

Magnetic skyrmions widely exist in a diverse range of magnetic systems, including chiral magnets with a non-centrosymmetric structure characterized by Dzyaloshinkii-Moriya interaction~(DMI). In this study, we propose a generalized…

Numerical Analysis · Mathematics 2023-04-13 Panchi Li , Shuting Gu , Jin Lan , Jingrun Chen , Weiqing Ren , Rui Du

The topologically protected magnetic spin configurations known as skyrmions offer promising applications due to their stability, mobility and localization. In this work, we emphasize how to leverage the thermally driven dynamics of an…

Mesoscale and Nanoscale Physics · Physics 2018-06-20 Daniele Pinna , Flavio Abreu Araujo , Joo-Von Kim , Vincent Cros , Damien Querlioz , Perre Bessiere , Jacques Droulez , Julie Grollier

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…

Magnetic skyrmions are magnetic quasi-particles with enhanced stability and different manipulation mechanisms using external fields and currents making them promising candidates for future applications for instance in neuromorphic…

Materials Science · Physics 2023-03-30 Thomas Brian Winkler , Jan Rothörl , Maarten A. Brems , Hans Fangohr , Mathias Kläui
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