Alternating Current-induced Interfacial Spin-transfer Torque
arXiv:1910.01306 · doi:10.1103/PhysRevB.100.220402
Abstract
We investigate an interfacial spin-transfer torque and -term torque with alternating current (AC) parallel to a magnetic interface. We find that both torques are resonantly enhanced as the AC frequency approaches to the exchange splitting energy. We show that this resonance allows us to estimate directly the interfacial exchange interaction strength from the domain wall motion. We also find that the -term includes an unconventional contribution which is proportional to the time derivative of the current and exists even in absence of any spin relaxation processes.
arXiv comment5 pages, 2 figures
References in corpus (27)
- Enhanced Gilbert Damping in Thin Ferromagnetic Films
- Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
- Symmetry and magnitude of spin-orbit torques in ferromagnetic heterostructures
- Spin Hall Magnetoresistance Induced by a Non-Equilibrium Proximity Effect
- 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
- Interface-Induced Phenomena in Magnetism
- Layer thickness dependence of the current induced effective field vector in Ta|CoFeB|MgO
- Dependence of the Efficiency of Spin Hall Torque on the Transparency of Pt-Ferromagnetic Layer Interfaces
- Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
- Microscopic approach to current-driven domain wall dynamics
- Tunneling Anisotropic Magnetoresistance: A spin-valve like tunnel magnetoresistance using a single magnetic layer
- Linear-response theory of spin Seebeck effect in ferromagnetic insulators
- Current-induced domain wall motion in Rashba spin-orbit system
- Microscopic Calculation of Spin Torques in Disordered Ferromagnets
- Current-induced magnetization dynamics in disordered itinerant ferromagnets
- Gilbert Damping in Magnetic Multilayers
- Enhanced DC Spin Pumping into a Fluctuating Ferromagnet near Tc
- Functional Keldysh Theory of Spin Torques
- Mean-field magnetization relaxation in conducting ferromagnets
- Spin current noise of the spin Seebeck effect and spin pumping
- Gauge Field Formulation of Adiabatic Spin Torques
- Calculation of current-induced torque from spin continuity equation
- Consistent microscopic analysis of spin pumping effects
- Current-induced non-adiabatic spin torques and domain wall motion with spin relaxation in a ferromagnetic metallic wire
- Non-local Spin-charge Conversion via Rashba Spin-Orbit Interaction