Theory of current-driven magnetization dynamics in inhomogeneous ferromagnets

Abstract

We give a brief account of recent developments in the theoretical understanding of the interaction between electric currents and inhomogeneous ferromagnetic order parameters. We start by discussing the physical origin of the spin torques responsible for this interaction and construct a phenomenological description. We then consider the electric current-induced ferromagnetic instability and domain-wall motion. Finally, we present a microscopic justification of the phenomenological description of current-driven magnetization dynamics, with particular emphasis on the dissipative terms, the so-called Gilbert damping $\alpha$ and the $\beta$ component of the adiabatic current-driven torque.

25 pages, 2 figures. Will appear in "Current Perspectives" on spin-transfer torque phenomena (edited by Dan Ralph and Mark Stiles), to be published in Journal of Magnetism and Magnetic Materials

References in corpus (35)

• Microwave Oscillations of a Nanomagnet Driven by a Spin-Polarized Current
• Enhanced Gilbert Damping in Thin Ferromagnetic Films
• Current-driven Magnetization Reversal and Spin Wave Excitations in Co/Cu/Co Pillars
• Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
• Nonlocal magnetization dynamics in ferromagnetic heterostructures
• Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
• Real-space observation of current-driven domain wall motion in submicron magnetic wires
• Theory of Current-Driven Domain Wall Motion: A Poorman's Approach
• Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
• Identification of the dominant precession damping mechanism in Fe, Co, and Ni by first-principles calculations
• Current-spin coupling for ferromagnetic domain walls in fine wires
• Domain wall dynamics driven by adiabatic spin transfer torques
• Velocity of domain-wall motion induced by electrical current in a ferromagnetic semiconductor (Ga,Mn)As
• Spin Transfer Torque for Continuously Variable Magnetization
• Microscopic Calculation of Spin Torques in Disordered Ferromagnets
• Current-induced magnetization dynamics in disordered itinerant ferromagnets
• Spin currents and spin dynamics in time-dependent density-functional theory
• Influence of a Uniform Current on Collective Magnetization Dynamics in a Ferromagnetic Metal
• Functional Keldysh Theory of Spin Torques
• Thermally-Assisted Current-Driven Domain Wall Motion
• Magnetization relaxation in (Ga,Mn)As ferromagnetic semiconductors
• Effect of Spin Current on Uniform Ferromagnetism: Domain Nucleation
• Adiabatic Domain Wall Motion and Landau-Lifshitz Damping
• Mean-field magnetization relaxation in conducting ferromagnets
• Spin dynamics from time-dependent spin density-functional theory
• A simple vision of current induced spin torque in domain walls
• Current-Driven Domain-Wall Dynamics in Curved Ferromagnetic Nanowires
• Spin transfer torque in continuous textures: semiclassical Boltzmann approach
• Giant current-driven domain wall mobility in (Ga,Mn)As
• Magnetization damping in a local-density approximation
• Gauge Field Formulation of Adiabatic Spin Torques
• Universality of thermally assisted magnetic domain wall motion under spin torque
• Intrinsic Domain Wall Resistance in Ferromagnetic Semiconductors
• Gilbert damping and spin Coulomb drag in a magnetized electron liquid with spin-orbit interaction
• Current-induced non-adiabatic spin torques and domain wall motion with spin relaxation in a ferromagnetic metallic wire

Cited by in corpus (71)

• Spin Caloritronics
• Symmetry and magnitude of spin-orbit torques in ferromagnetic heterostructures
• Interface-Induced Phenomena in Magnetism
• Current induced torques and interfacial spin-orbit coupling: Semiclassical Modeling
• Phenomenology of Current-Induced Dynamics in Antiferromagnets
• Magnetization dynamics induced by in-plane currents in ultrathin magnetic nanostructures
• High domain wall velocities induced by current in ultrathin Pt/Co/AlOx wires with perpendicular magnetic anisotropy
• Magnon-drag thermopower and Nernst coefficient in Fe, Co, and Ni
• Dynamics of magnetization on the topological surface
• Electron Transport Driven by Nonequilibrium Magnetic Textures
• Influence of a Transport Current on Magnetic Anisotropy in Gyrotropic Ferromagnets
• Current induced rotational torques in the skyrmion lattice phase of chiral magnets
• Thermomagnonic spin transfer and Peltier effects in insulating magnets
• Non-Adiabatic Spin Transfer Torque in Real Materials
• Spin-transfer torques for domain walls in antiferromagnetically coupled ferrimagnets
• Nanoscale Magnetic Heat Pumps and Engines
• Curvature and torsion effects in the spin-current driven domain wall motion
• Dynamics of Antiferromagnets Driven by Spin Current
• Magnetic domain walls displacement : automotion vs. spin-transfer torque
• Skyrmionic spin Seebeck effect via dissipative thermomagnonic torques
• Spin Hall phenomenology of magnetic dynamics
• Inhomogeneous Gilbert damping from impurities and electron-electron interactions
• Thermoelectric spin transfer in textured magnets
• Effects of non-adiabaticity on the voltage generated by a moving domain wall
• Hydrodynamic theory of coupled current and magnetization dynamics in spin-textured ferromagnets
• Intrinsic Coupling between Current and Domain Wall Motion in (Ga,Mn)As
• Self-consistent calculation of spin transport and magnetization dynamics
• Spin-Torque-Induced Rotational Dynamics of a Magnetic Vortex Dipole
• Intrinsic and extrinsic tunability of Rashba spin-orbit coupled emergent inductors
• Theory of spin magnetohydrodynamics
• Angular dependence and symmetry of Rashba spin torque in ferromagnetic heterostructures
• Gilbert Damping in Conducting Ferromagnets I: Kohn-Sham Theory and Atomic-Scale Inhomogeneity
• Proposal for a Domain Wall Nano-Oscillator driven by Non-uniform Spin Currents
• Antiferromagnetic textures and dynamics on the surface of a heavy metal
• Landau-Lifshitz theory of the magnon-drag thermopower
• The dynamics of a domain wall in ferrimagnets driven by spin-transfer torque
• Magnetocaloritronic nanomachines
• Energy Storage via Topological Spin Textures
• Left-handed polarized spin waves in ferromagnets induced by spin-transfer torque
• Thermopower and Thermally Induced Domain Wall Motion in (Ga,Mn)As
• Topological spin-transfer drag driven by skyrmion diffusion
• Adiabatic and nonadiabatic spin torques induced by spin-triplet supercurrent
• Spin-orbit-coupling induced torque in ballistic domain walls: equivalence of charge-pumping and nonequilibrium magnetization formalisms
• Current-induced spin torques in III-V ferromagnetic semiconductors
• Dissipative dynamics of magnetic solitons in metals
• Investigation of domain wall pinning by square anti-notches and its applications in three terminals MRAM
• Spin-charge coupled dynamics driven by a time-dependent magnetization
• Spatially Nonuniform Oscillations in Ferrimagnets Based on an Atomistic Model
• Externally-driven transmission and collisions of domain walls in ferromagnetic wires
• Mechanics of a ferromagnetic domain wall
• The domain-wall motion driven by a rotating field in a ferrimagnet
• Anisotropy of spin-transfer torques and Gilbert damping induced by Rashba coupling
• Domain-wall complexes in ferromagnetic stripes
• Dynamical influence of vortex-antivortex pairs in magnetic vortex oscillators
• Non-equilibrium thermodynamic study of magnetization dynamics in the presence of spin-transfer torque
• Driving large-velocity propagation of ferromagnetic pi/2 domain walls in nanostripes of cubic-anisotropy materials
• Domain-wall-assisted giant magnetoimpedance of thin-wall ferromagnetic nanotubes
• Supercurrent induced domain wall motion
• Domain wall dynamics driven by a localized injection of a spin-polarized current
• Gate-controlled magnonic-assisted switching of magnetization in ferroelectric/ferromagnetic junctions
• Existence of vertical spin stiffness in Landau-Lifshitz-Gilbert equation in ferromagnetic semiconductors
• Instability of magnetic skyrmion strings induced by longitudinal spin currents
• Reversal and Termination of Current-Induced Domain Wall Motion via Magnonic Spin-Transfer Torque
• Orbital angular momentum and current-induced motion of a Skyrmion-textured domain wall in a ferromagnetic nanotube
• Unified theory of spin and charge in a ferromagnet
• Possible charge analogues of spin transfer torques in bulk superconductors
• Emergent impedance due to antiferromagnetic domain wall dynamics
• Current-driven motion of magnetic topological defects in ferromagnetic superconductors
• Universality between current- and field-driven domain wall dynamics in ferromagnetic nanowires
• Superfluid-like spin transport in the dynamic states of easy-axis magnets
• Numerical analysis of the Landau--Lifshitz--Bloch equation with spin-torques