Magnetic droplet solitons generated by pure spin currents
arXiv:1710.04430 · doi:10.1103/PhysRevB.96.224419
Abstract
Magnetic droplets are dynamical solitons that can be generated by locally suppressing the dynamical damping in magnetic films with perpendicular anisotropy. To date, droplets have been observed only in nanocontact spin-torque oscillators operated by spin-polarized electrical currents. Here, we experimentally demonstrate that magnetic droplets can be nucleated and sustained by pure spin currents in nanoconstriction-based spin Hall devices. Micromagnetic simulations support our interpretation of the data, and indicate that in addition to the stationary droplets, propagating solitons can be also generated in the studied system, which can be utilized for the information transmission in spintronic applications.
References in corpus (23)
- The design and verification of Mumax3
- Spin Hall effect
- Current-driven dynamics of chiral ferromagnetic domain walls
- Blowing Magnetic Skyrmion Bubbles
- Matching domain wall configuration and spin-orbit torques for very efficient domain-wall motion
- Magnetic oscillations driven by the spin Hall effect in 3-terminal magnetic tunnel junction devices
- Generation of coherent spin-wave modes in Yttrium Iron Garnet microdiscs by spin-orbit torque
- Nanowire Spin Torque Oscillator Driven by Spin Orbit Torques
- Experimental evidence of self-localized and propagating spin wave modes in obliquely magnetized current-driven nanocontacts
- Magnetization oscillations and waves driven by pure spin currents
- Theory for a dissipative droplet soliton excited by a spin torque nanocontact
- Spin caloritronic nano-oscillator
- Dynamical Skyrmion State in a Spin Current Nano-Oscillator with Perpendicular Magnetic Anisotropy
- Stable Magnetic Droplet Solitons in Spin Transfer Nanocontacts
- Direct Observation of Large Amplitude Spin Excitations Localized in a Spin-Transfer Nanocontact
- Confined dissipative droplet solitons in spin-valve nanowires with perpendicular magnetic anisotropy
- Propagation and control of nano-scale, magnetic droplet solitons
- Observation of droplet soliton drift resonances in a spin-transfer-torque nanocontact to a ferromagnetic thin film
- Nanoconstriction spin-Hall oscillator with perpendicular magnetic anisotropy
- Effects of thermal perturbations on magnetic dissipative droplet solitons
- Route toward high-speed nano-magnonics
- Effect of temperature on spin-transfer torque induced magnetic solitons
- Direct observation of magnetic droplet solitons in all-perpendicular spin torque nano-oscillators
Cited by in corpus (11)
- Roadmap of spin-orbit torques
- On the origin of magnetization auto-oscillations in constriction-based spin Hall nano-oscillators
- Width dependent auto-oscillating properties of constriction based spin Hall nano-oscillators
- Phase Diagram, Stability and Magnetic Properties of Nonlinear Excitations in Spinor Bose-Einstein Condensates
- Magnetic Droplet Soliton Nucleation in Oblique Fields
- Magnetic Droplet Solitons
- Freezing and thawing magnetic droplet solitons
- Propagating magnetic droplet solitons as moveable nanoscale spin-wave sources with tunable direction of emission
- Stochastic ejection of nanocontact droplet solitons via drift instability
- Thermal Activation Barriers for Creation and Annihilation of Magnetic Droplet Solitons in the Presence of Spin Transfer Torque
- Antiferromagnetic droplet soliton driven by spin current