Current-induced vortex displacement and annihilation in a single Permalloy disk
arXiv:cond-mat/0511040 · doi:10.1103/PhysRevB.74.014424
Abstract
The induced motion of a magnetic vortex in a micron-sized ferromagnetic disk due to the DC current injection is studied by measuring planar Hall effect. The DC current injection is found to induce the spin torque that sweeps the vortex out of the disk at the critical current while bias magnetic field are applied. The current-induced vortex core displacement deduced from the change in planar Hall resistance is quantitatively consistent with theoretical prediction. Peak structures similar to those originated from spin wave excitations are observed in the differential planar Hall resistance curve.
arXiv comment12 pages, 4 figures
References in corpus (8)
- Microwave Oscillations of a Nanomagnet Driven by a Spin-Polarized Current
- Real-space observation of current-driven domain wall motion in submicron magnetic wires
- Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
- Magnetic Vortex Resonance in Patterned Ferromagnetic Dots
- Magnetic Vortex Core Dynamics in a Ferromagnetic Dot
- Effect of Joule heating in current-driven domain wall motion
- Current-induced spin-wave excitations in a single ferromagnetic layer
- Current-induced Vortex Motion by Spin-Transfer Torque
Cited by in corpus (8)
- Electrical switching of vortex core in a magnetic disk
- Switching magnetic vortex core by a single nanosecond current pulse
- Gauge Field Formulation of Adiabatic Spin Torques
- Regular and chaotic vortex core reversal by a resonant perpendicular magnetic field
- Magnetic vortex-antivortex crystals generated by spin-polarized current
- In-Situ Contacting and Current-Injection into Samples in Photoemission Electron Microscopes
- Externally-driven transformations of vortex textures in flat submicrometer magnets
- Current Induced Vortex Wall Dynamics in Helical Magnetic Systems