Results 21 to 30 of about 8,313 (238)
Skyrmions in nanorings: A versatile platform for skyrmionics
Physical Review Applied, 2023 The dynamical properties of skyrmions can be exploited to build devices with new functionalities. Here, we first investigate a skyrmion-based ring-shaped device by means of micromagnetic simulations and Thiele equation. We subsequently show three applications scenarios: (1) a clock with tunable frequency that is biased with an electrical current having
Dimitris Kechrakos +7 more
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Elliptical Bloch skyrmion chiral twins in an antiskyrmion system
Nature Communications, 2020 Skyrmions and anti-skyrmions often exist in distinct material systems. Here, the authors observe elliptical skyrmions and anti-skyrmions with opposite topological charges in one tetragonal Heusler compound Mn1.4Pt0.9Pd0.1Sn with D 2d symmetry.
Jagannath Jena +7 more
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npj Computational Materials, 2023 Magnetic skyrmions, which are topologically protected tiny spin textures, have emerged as information carriers in energy-efficient logic and memory devices.
Arnab Kabiraj, Santanu Mahapatra
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Journal of Mathematical Physics, 2000 A systematic numerical study of the classical solutions to the combined system consisting of the Georgi–Glashow model and the SO(3) gauged Skyrme model is presented. The gauging of the Skyrme system permits a lower bound on the energy, so that the solutions of the composite system can be topologically stable. The solutions feature some very interesting
Kleihaus, B. +2 more
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Journal of Physics A: Mathematical and Theoretical, 2023 Abstract A new method is introduced to construct approximations to Skyrmions that are explicit rational functions of the spatial Cartesian coordinates. The scheme uses ADHM data of a Yang–Mills instanton to produce a Skyrmion with a baryon number that is equal to the instanton number.
Derek Harland, Paul Sutcliffe
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Clogging, diode and collective effects of skyrmions in funnel geometries
New Journal of Physics, 2022 Using a particle-based model, we examine the collective dynamics of skyrmions interacting with a funnel potential under dc driving as the skyrmion density and relative strength of the Magnus and damping terms are varied. For driving in the easy direction,
J C Bellizotti Souza +4 more
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, 2015 In this paper, we present a detailed study of Skyrmion-Skyrmion scattering for two B=1 Skyrmions in the attractive channel where we observe two different scattering regimes. For large separation, the scattering can be approximated as interacting dipoles.
Foster, David +4 more
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Trapping and manipulating skyrmions in two-dimensional films by surface acoustic waves
Scientific Reports, 2023 Skyrmions, topologically stable spin structures with particle-like properties, are promising for spintronics applications such as skyrmion racetrack memory. Though reliable control of skyrmion motion is essential for the operation of spintronics devices,
Yu Miyazaki +2 more
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Lifetime of coexisting sub-10 nm zero-field skyrmions and antiskyrmions
npj Quantum Materials, 2023 Magnetic skyrmions have raised high hopes for future spintronic devices. For many applications, it would be of great advantage to have more than one metastable particle-like texture available.
Moritz A. Goerzen +4 more
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Fermions coupled to skyrmions on S**3 [PDF]
, 2003 This paper discusses Skyrmions on the 3-sphere coupled to fermions. The resulting Dirac equation commutes with a generalized angular momentum G. For G = 0 the Dirac equation can be solved explicitly for a constant Skyrme configuration and also for a SO(4)
Krusch, Steffen
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