| Issue |
EPL
Volume 103, Number 6, September 2013
|
|
|---|---|---|
| Article Number | 67004 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/103/67004 | |
| Published online | 22 October 2013 | |
Current-driven spring-like oscillatory motion of coupled vortex walls in a two-nanostripe system
College of Physics Science and Technology, Yangzhou University - Yangzhou 225002, PRC
(a) jghu@yzu.edu.cn
Received: 11 April 2013
Accepted: 14 September 2013
In a two closely spaced nanostripes system, the coupled vortex wall undergoes a spring-like oscillatory motion (SOM) when current is applied to both nanostripes in opposite directions. The SOM may vanish, when the current density is larger than a critical value. The critical current density for destroying the SOM decreases as the interstripe spacing increases. However, as the perpendicular anisotropy of the system increases, the critical current density firstly decreases and then increases. Two competitive effects of the perpendicular anisotropy on the SOM are shown. Moreover, diagrams of without oscillation, spring behavior and motionless phases upon the current and the interstripe spacing (or the perpendicular anisotropy) are given.
PACS: 75.60.Ch – Domain walls and domain structure / 72.25.Pn – Current-driven spin pumping / 75.78.Cd – Micromagnetic simulations
© EPLA, 2013
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.