Results 11 to 20 of about 7,833 (239)

Skyrmion-skyrmion and skyrmion-edge repulsions in skyrmion-based racetrack memory [PDF]

open access: yesScientific Reports, 2015
Magnetic skyrmions are promising for building next-generation magnetic memories and spintronic devices due to their stability, small size and the extremely low currents needed to move them. In particular, skyrmion-based racetrack memory is attractive for information technology, where skyrmions are used to store information as data bits instead of ...
Zhang, Xichao   +6 more
openaire   +6 more sources

Stripe skyrmions and skyrmion crystals [PDF]

open access: yesCommunications Physics, 2020
Abstract Skyrmions are important in quantum field theory and information technology for being topological solitons and for their attractive applications. Magnetic skyrmions are believed to be circular and stripy spin textures accompanied skyrmion crystals (SkXs) termed spiral/helical/cycloid orders have zero skyrmion number.
X. R. Wang, X. C. Hu, H. T. Wu
openaire   +6 more sources

Deriving the skyrmion Hall angle from skyrmion lattice dynamics [PDF]

open access: yesNature Communications, 2021
Skyrmions, when driven by any applied force, experience an addition sideways motion known as the skyrmion hall effect. Here, Brearton et al. present a reciprocal space method for determining the strength of the skyrmion hall effect, making measurement ...
R. Brearton   +6 more
doaj   +2 more sources

Skyrmion–skyrmion interaction in a magnetic film [PDF]

open access: yesJournal of Physics: Condensed Matter, 2020
Abstract Interaction of two skyrmions stabilized by the ferromagnetic exchange, Dzyaloshinskii–Moriya interaction (DMI), and external magnetic field has been studied numerically on a 2D lattice of size large compared to the separation, d , between the skyrmions. We show that
D Capic, D A Garanin, E M Chudnovsky
openaire   +3 more sources

Nonexistence of Skyrmion–Skyrmion and Skyrmion–anti-Skyrmion static equilibria [PDF]

open access: yesJournal of Mathematical Physics, 2011
We consider classical static Skyrmion–anti-Skyrmion and Skyrmion–Skyrmion configurations, symmetric with respect to a reflection plane, or symmetric up to a G-parity transformation, respectively. We show that the stress tensor component completely normal to the reflection plane, and hence its integral over the plane, is negative definite or positive ...
Gibbons, GW, Warnick, CM, Wong, WW
openaire   +3 more sources

Skyrmion Echo in a System of Interacting Skyrmions

open access: yesPhysical Review Letters, 2022
We consider helical rotation of skyrmions confined in the potentials formed by nano-disks. Based on numerical and analytical calculations we propose the skyrmion echo phenomenon. The physical mechanism of the skyrmion echo formation is also proposed.
X.-G. Wang   +7 more
openaire   +4 more sources

Skyrmion–anti-Skyrmion chains [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2009
Static axially symmetric sphaleron-type solutions describing chains of interpolating Skyrmion--anti-Skyrmions have been constructed numerically. The configurations are characterized by two integers n and m, where $\pm n$ are the winding numbers of the constituent Skyrmion and anti-Skyrmion and the second integer m defines type of the solution, it has ...
Shnir, Ya., Tchrakian, D. H.
openaire   +2 more sources

Magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets: effect of skyrmion helicity oscillation

open access: yesNew Journal of Physics, 2022
A theoretical study on the interplay of frustrated skyrmion and magnons should reveal new physics and future experiment designs. In this study, we investigate the magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets based on ...
Z Jin   +10 more
doaj   +1 more source

Skyrmions in nanorings: A versatile platform for skyrmionics

open access: yesPhysical 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
openaire   +3 more sources

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