Magnetic domain wall dynamics in the precessional regime: influence of the Dzyaloshinskii-Moriya interaction

Abstract

The domain wall dynamics driven by an out of plane magnetic field was measured for a series of magnetic trilayers with different strengths of the interfacial Dzyaloshinskii-Moriya interaction (DMI). The features of the field-driven domain wall velocity curves strongly depend on the amplitude of the HD field stabilising chiral Néel walls. The measured Walker velocity, which in systems with large DMI is maintained after the Walker field giving rise to a velocity plateau up to the Slonczewski field HS, can be easily related to the DMI strength. Yet, when the DMI field HD and the domain wall demagnetising field HDW have comparable values, a careful analysis needs to be done in order to evaluate the impact of the DMI on the domain wall velocity. By means of a one-dimensional model and 2D simulations, we successfully extend this method to explain experimental results to cases where HD and HDW are comparable.

9 pages, 3 Figures

References in corpus (20)

• The design and verification of Mumax3
• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films
• Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
• Anatomy of Dzyaloshinskii-Moriya Interaction at Co/Pt Interfaces
• Fast domain wall motion induced by antiferromagnetic spin dynamics at the angular momentum compensation temperature of ferrimagnets
• Asymmetric Magnetic Domain-Wall Motion by the Dzyaloshinskii-Moriya Interaction
• Thickness dependence of the interfacial Dzyaloshinskii-Moriya interaction in inversion symmetry broken systems
• Interfacial Dzyaloshinskii-Moriya interaction in perpendicularly-magnetized Pt/Co/AlO${}_x$ ultrathin films measured by Brillouin light spectroscopy
• Controlling Dzyaloshinskii-Moriya Interaction via Chirality Dependent Layer Stacking, Insulator Capping and Electric Field
• Chirality-induced asymmetric magnetic nucleation in Pt/Co/AlOx ultrathin microstructures
• Soliton-like magnetic domain wall motion induced by the interfacial Dzyaloshinskii-Moriya interaction
• Berry phase theory of Dzyaloshinskii-Moriya interaction and spin-orbit torques
• Very large domain wall velocities in Pt/Co/Gd trilayers with Dzyaloshinskii-Moriya interaction
• Velocity asymmetry of Dzyaloshinskii domain walls in the creep and flow regimes
• Tuning domain wall velocity with Dzyaloshinskii-Moriya interaction
• Dependence of Dzyaloshinskii-Moriya interaction on the oxygen coverage in Pt/Co/MOx trilayers
• Universality of Dzyaloshinskii-Moriya interaction effect over domain-wall creep and flow regimes
• Magnetic properties and field-driven dynamics of chiral domain walls in epitaxial Pt/Co/Au${}_x$Pt${}_{1-x}$ trilayers
• Study of the velocity plateau of Dzyaloshinskii domain walls

Cited by in corpus (6)

• Element-selective modulation of interfacial Dzyaloshinskii-Moriya interaction in Pt|Co|Metal based multilayers
• Revealing nanoscale disorder in W/CoFeB/MgO ultra-thin films using domain wall motion
• Dzyaloshinskii-Moriya interaction torques and domain wall dynamics in van der Waals heterostructures
• Tuning the dynamics of chiral domain walls of ferrimagnetic films with the magneto-ionic effect
• Interaction of in-plane magnetic skyrmions with 90${}^{\circ }$ magnetic domain walls: micromagnetic simulations
• Deterministic roughening in the dc-driven precessional regime of domain walls