Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3291064
Keywords
ground states; magnetic domain walls; magnetic fields; magnetisation reversal; nanostructured materials; perpendicular magnetic anisotropy
Categories
Funding
- EU [NMP-FP7212257]
- RFBR [09-02-01423]
- National Science Foundation of the USA [ECCS 0653901]
- U.S. Army TARDEC [W56HZW-09-P-L564]
- IKERBASQUE
Ask authors/readers for more resources
For a circular magnetic nanodot in a vortex ground state, we study how the critical velocity v(c) of the vortex core reversal depends on the magnitude H of a bias magnetic field applied perpendicularly to the dot plane. We find that, similarly to the case H=0, the critical velocity does not depend on the size of the dot. The critical velocity is dramatically reduced when the negative (i.e., opposite to the vortex core direction) bias field approaches the value, at which a static core reversal takes place. A simple analytical model shows good agreement with our numerical result.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available