Spin-wave contributions to current-induced domain wall dynamics

Abstract

We examine theoretically the role of spin-waves on current-induced domain wall dynamics in a ferromagnetic wire. At room temperature, we find that an interaction between the domain wall and the spin waves appears when there is a finite difference between the domain wall velocity ${\dot{x}}_0$ and the spin current $u$. Three important consequences of this interaction are found. Firstly, spin-wave emission leads to a Landau-type damping of the current-induced domain wall motion towards restoring the solution ${\dot{x}}_0=u$, where spin angular momentum is perfectly transfered from the conduction electrons to the domain wall. Secondly, the interaction leads to a modification of the domain wall width and mass, proportional to the kinetic energy of the domain wall. Thirdly, the coupling by the electrical current between the domain wall and the spin waves leads to temperature-dependent effective wall mass.

References in corpus (10)

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Cited by in corpus (19)

• Magnetic texture based magnonics
• Antiferromagnetic Domain Wall Motion Induced by Spin Waves
• Interference of coherent spin waves in micron-sized ferromagnetic waveguides
• Spin wave assisted current induced magnetic domain wall motion
• Theory of Linear Spin Wave Emission from a Bloch Domain Wall
• Thermally Assisted Current-Driven Skyrmion Motion
• Thermal vector potential theory of magnon-driven magnetization dynamics
• Spin Wave Emission in Field-Driven Domain Wall Motion
• Pair emission from a relativistic domain wall in antiferromagnets
• Influence of magnetic viscosity on domain wall dynamics under spin-polarized currents
• Resonant translational, breathing and twisting modes of pinned transverse magnetic domain walls
• Origin of adiabatic and non-adiabatic spin transfer torques in current-driven magnetic domain wall motion
• Magnon-induced non-Markovian friction of a domain wall in a ferromagnet
• Collective coordinate study of spin wave emission from dynamic domain wall
• Inelastic spin-wave scattering by Bloch domain wall flexure oscillations
• Thermal fluctuation field for current-induced domain wall motion
• Emergent electric field induced by dissipative sliding dynamics of domain walls in a Weyl magnet
• Interaction of gapless spin waves and a domain wall in an easy-cone ferromagnet
• Nonreciprocal flexural dynamics of Dzyaloshinskii domain walls