Abstract
Temporal and spatial variation of magnetization generates an additional damping torque due to spin-motive force. We performed semi-one-dimensional (1-D) and two-dimensional (2-D) micromagnetic simulations to investigate effect of the additional damping on the field-driven transverse wall dynamics in a magnetic nanowire. At the magnetic field above the Walker breakdown field, the additional damping due to the spin-motive force causes an increase of domain wall velocity. In semi-1-D model, the amount of increased domain wall velocity is linearly proportional to the external magnetic field as predicted by theory. However, in 2-D model, it is inversely proportional to the field owing to the periodic injection of antivortex.
| Original language | English |
|---|---|
| Article number | 5467553 |
| Pages (from-to) | 2167-2170 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 46 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2010 Jun |
Keywords
- Domain wall motion
- Gilbert damping
- Micromagnetic simulation
- Spin-motive force
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering