The domain wall spin torque-meter

Abstract

We report the direct measurement of the non-adiabatic component of the spin-torque in domain walls. Our method is independent of both the pinning of the domain wall in the wire as well as of the Gilbert damping parameter. We demonstrate that the ratio between the non-adiabatic and the adiabatic components can be as high as 1, and explain this high value by the importance of the spin-flip rate to the non-adiabatic torque. Besides their fundamental significance these results open the way for applications by demonstrating a significant increase of the spin torque efficiency.

12 pages plus supplementary notes

References in corpus (9)

• Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
• Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
• Creep and flow regimes of magnetic domain wall motion in ultrathin Pt/Co/Pt films with perpendicular anisotropy
• Domain wall propagation in magnetic nanowires by spin polarized current injection
• Rashba Effect at Magnetic Metal Surfaces
• Current-induced domain wall motion in Rashba spin-orbit system
• Spin relaxation of conduction electrons
• A simple vision of current induced spin torque in domain walls
• Spin transfer torque in continuous textures: semiclassical Boltzmann approach

Cited by in corpus (23)

• Magnetic switching by spin torque from the spin Hall effect
• Current-driven dynamics of chiral ferromagnetic domain walls
• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Symmetry and magnitude of spin-orbit torques in ferromagnetic heterostructures
• Interface-Induced Phenomena in Magnetism
• Domain wall motion governed by the spin Hall effect
• Spin Hall torque magnetometry of Dzyaloshinskii domain walls
• Domain wall tilting in the presence of the Dzyaloshinskii-Moriya interaction in out-of-plane magnetized magnetic nanotracks
• Electric Control of Multiple Domain Walls in Pt/Co/Pt Nanotrack with Perpendicular Magnetic Anisotropy
• Direct Observation of Massless Domain Wall Dynamics in Nanostripes with Perpendicular Magnetic Anisotropy
• Interfacial current-induced torques in Pt/Co/GdOx
• Magnetic domain wall motion by spin transfer
• Influence of heavy metal materials on magnetic properties of Pt/Co/heavy metal tri-layered structures
• Generalized analysis of thermally activated domain-wall motion in Co/Pt multilayers
• Universal Absence of Walker Breakdown and Linear Current-Velocity Relation via Spin-Orbit Torques in Coupled and Single Domain Wall Motion
• Bulk and interface spin-orbit torques in Pt/Co/MgO thin film structures
• Mechanism of current-assisted Bloch-point wall stabilization for ultra fast dynamics
• Spin-orbit torques and magnetization switching in perpendicularly magnetized epitaxial Pd/Co2FeAl/MgO structures
• Domain-wall-controlled transverse spin injection
• Stabilization of exponential number of discrete remanent states with localized spin-orbit torques
• Detection of field-free magnetization switching through thermoelectric effect in Ta/Pt/Co/Pt with significant spin-orbit torque and competing spin currents
• Universality between current- and field-driven domain wall dynamics in ferromagnetic nanowires
• Roles of adiabatic and nonadiabatic spin transfer torques on magnetic domain wall motion