Abstract
We have investigated switching behaviors of a spin-vortex core in circular magnetic dots to evaluate them as a new candidate for magnetic memory elements. The spin-vortex core with the lateral dimension of exchange length can take two possible states with spins around the dot center directing either up- or downward. These two spin configurations are very stable and their polarities can be switched by a large vertical field. The mean switching field reaches about 2.5 kOe for Ni80Fe20 dots with 1 μm in diameter and 80 nm in height. This result could open the way for developing a new bistable magnetic memory element utilizing the spin vortex.
Original language | English |
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Pages (from-to) | 6548-6549 |
Number of pages | 2 |
Journal | Journal of Applied Physics |
Volume | 90 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2001 Dec 15 |
ASJC Scopus subject areas
- Physics and Astronomy(all)