| Autor: |
Shimon, G., Adeyeye, A. O. |
| Předmět: |
|
| Zdroj: |
Applied Physics Letters; 7/18/2016, Vol. 109 Issue 3, p032407-1-032407-5, 5p, 1 Diagram, 4 Graphs |
| Abstrakt: |
We have directly probed the dynamic behavior of a single ferromagnetic disk as a function of neighboring disk interactions and lattice configurations using micro-focused Brillouin light scattering spectroscopy. At high field, when the disks are in the single domain state, the dynamic behavior of the disk under probe is strongly influenced by the neighboring disk configurations due to magnetostatic interactions. In particular, the changing landscape of dipolar field from neighboring disks as a function of lattice configurations plays a key role in modifying the resultant internal field of the disk under probe. When the disks are in the vortex state at remanence, the effects of dipolar fields on the disk under probe vanish resulting in a negligible configurational anisotropy. Micromagnetic simulations and stray field models are in good agreement with the experimental results. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
