Spin-torque effect on spin wave modes in magnetic nanowires
arXiv:1208.3661 · doi:10.1063/1.4747152
Abstract
The interaction between a spin polarized dc electrical current and spin wave modes of a cylindrical nanowire is investigated in this report. We found that close to the critical current, the uniform mode is suppressed, while the edge mode starts to propagate into the sample. When the current exceeds the critical value, this phenomenon is even more accentuated. The edge mode becomes the uniform mode of the nanowire. The higher spin wave modes are slowly pushed away by the current until the propagating mode remains.
11 pages, 6 gigures
References in corpus (5)
- Microwave Oscillations of a Nanomagnet Driven by a Spin-Polarized Current
- Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
- Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
- Influence of a Uniform Current on Collective Magnetization Dynamics in a Ferromagnetic Metal
- Spatial distribution of spin-wave modes in cylindrical nanowires of finite aspect ratio
Cited by in corpus (5)
- Domain wall pinning and interaction in rough cylindrical nanowires
- Left-handed polarized spin waves in ferromagnets induced by spin-transfer torque
- Handedness-filter and Doppler shift of spin waves in ferrimagnetic domain walls
- Metastable domain wall dynamics in magnetic nanowires
- 3D versus 2D domain wall interaction in ideal and rough nanowires