Geometry-induced motion of magnetic domain walls in curved nanostripes

Abstract

Dynamics of topological magnetic textures are typically induced externally by, e.g.~magnetic fields or spin/charge currents. Here, we demonstrate the effect of the internal-to-the-system geometry-induced motion of a domain wall in a curved nanostripe. Being driven by the gradient of the curvature of a biaxial stripe, transversal domain walls acquire remarkably high velocities of up to 100 m/s and do not exhibit any Walker-type speed limit. We pinpoint that the inhomogeneous distribution of the curvature-induced Dzyaloshinskii--Moriya interaction is a driving force for the motion of a domain wall. Although we showcase our approach on the specific Euler spiral geometry, the approach is general and can be applied to a wide class of geometries.

arXiv comment9 pages, 5 figures

References in corpus (14)

• Current-driven dynamics of chiral ferromagnetic domain walls
• Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
• Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
• Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
• Domain wall mobility, stability and Walker breakdown in magnetic nanowires
• Curvature effects in statics and dynamics of low dimensional magnets
• High domain wall velocities due to spin currents perpendicular to the plane
• Curvature induced domain wall pinning
• Curvature and torsion effects in the spin-current driven domain wall motion
• Magnetic domain walls displacement : automotion vs. spin-transfer torque
• Magnetization in narrow ribbons: curvature effects
• Oscillatory behavior of the domain wall dynamics in a curved cylindrical magnetic nanowire
• Automotion of Domain Walls for Spintronic Interconnects
• Transmission XMCD-PEEM imaging of an engineered vertical FEBID cobalt nanowire with a domain wall

Cited by in corpus (16)

• Domain wall automotion in three-dimensional magnetic helical interconnectors
• The effect of curvature on the eigenexcitations of magnetic skyrmions
• Curvature induced drift and deformation of magnetic skyrmions: comparison of ferro- and antiferromagnetic cases
• Curvature induced magnonic crystal in nanowires
• Manipulating the shape of flexible magnetoelastic nanodiscs with meron-like magnetic states
• Domain wall damped harmonic oscillations induced by curvature gradients in elliptical magnetic nanowires
• Domain wall diode based on functionally graded Dzyaloshinskii-Moriya interaction
• Control of magnetic response in curved stripes by tailoring cross-section
• Curvature-Induced Skyrmion Mass
• Dynamics of asymmetrically deformed skyrmion driven by internal forces and strain force in a flower-shaped magnetic nanostructure
• Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion
• Dynamics of domain walls in curved antiferromagnetic wires
• Geometrically Constrained Localized Configurations: First-Order Framework and Analytical Solutions
• Spin-orbit torque driven motion of chiral domain walls induced by radial magnetization in nanotube geometry
• Stability of parametrically driven, damped nonlinear Dirac solitons
• Absence of Walker breakdown in the dynamics of chiral Neel domain walls driven by in-plane strain gradients