Dynamics of current-driven magnetic domain walls and skyrmions
I. Purnama
- 01 Jan 2015
TL;DR: In this paper, the authors propose a method to solve the problem of homonymity in homonym identification, i.e., "homonymity-based homonymization".
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Citations
•Journal Article
Universal current-velocity relation of skyrmion motion in chiral magnets
TL;DR: A numerical simulation of Landau-Lifshitz-Gilbert equation reveals a remarkably robust and universal current-velocity relation of the skyrmion motion driven by the spin-transfer-torque unaffected by either impurities or nonadiabatic effect in sharp contrast to the case of domain wall or spin helix.
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•Journal Article
Fractional vortices and composite domain walls in flat nanomagnets
Oleg Tchernyshyov,Gia-Wei Chern +1 more
TL;DR: An explanation of complex magnetic patterns observed in ferromagnetic nanostructures is provided and elementary topological defects in the field of magnetization are identified: ordinary vortices in the bulk and vorts with half-integer winding numbers confined to the edge.
•Journal Article
Extended skyrmion phase in epitaxial FeGe(111) thin films
TL;DR: In this article, the authors extended the topological Hall effect on the Skyrmion state in epitaxial B20 FeGe(111) thin films to cover all temperatures up to the Curie temperature T(C)≈271 K and over a wide magnetic field range.
•Journal Article
Emergent Electrodynamics of Skyrmions in Chiral Magnets
TL;DR: In this article, Hall effect measurements were used to establish quantitatively the predicted emergent electrodynamics of skyrmions in chiral magnets and their depinning from impurities and their subsequent motion.
References
Head To Head Domain Wall Structures In Thin Magnetic Stripes
Michael J. Donahue,R.D. McMichael +1 more
- 01 Apr 1997
TL;DR: In this article, the authors proposed a phase diagram for head-to-head domain wall structures in magnetic strips of Ni/sub 80/Fe/sub 20/ with widths, w, ranging from 75 nm to 500 nm and thickness, t, from 1 nm to 64 nm.
Magnetic domain-wall velocity oscillations in permalloy nanowires
TL;DR: In this paper, the field-driven domain-wall (DW) velocity in permalloy nanowires is observed above the Walker breakdown condition using high-speed magneto-optic polarimetry.
Direct imaging of domain wall interactions in Ni80Fe20 planar nanowires
Thomas J. Hayward,Matthew T. Bryan,Paul W. Fry,P. M. Fundi,M.R.J. Gibbs,Dan A. Allwood,Mi-Young Im,Peter Fischer +7 more
TL;DR: In this paper, the magnetostatic interactions between domain walls in Ni{sub 80}Fe{sub 20} planar nanowires were investigated using magnetic soft x-ray microscopy and micromagnetic simulations.
Investigation of dominant spin wave modes by domain walls collision
TL;DR: In this paper, the spin wave emission due to field-driven domain wall (DW) collision has been investigated numerically and analytically in permalloy nanowires.
Current-induced coupled domain wall motions in a two-nanowire system
TL;DR: In this article, the spin-polarized current applied to any of the nanowires will induce domain wall motions in the adjacent nanowire, and coupling breaking is observed at a critical current density which varies in a nonlinear manner with respect to the interwire spacing.