| Autor: |
P.V. Lemish, Y.N. Troschenkov, D.N. Zhmetko, V.V. Savin |
| Rok vydání: |
2006 |
| Předmět: |
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| Zdroj: |
Journal of Magnetism and Magnetic Materials. 299:176-187 |
| ISSN: |
0304-8853 |
| DOI: |
10.1016/j.jmmm.2005.04.001 |
| Popis: |
The damping mechanism for motion of domain walls, which form the sandwich structure and move from the middle plane of the ribbon to opposite surfaces during the dynamic magnetization reversal, have been investigated. The difference between the real and ideal sandwich domain structure, the actual distribution of the anisotropy easy directions through the ribbon thickness and the M ⇒ s deviation from local easy directions under the action of applied magnetic field have been taken into account. It was revealed that the maximum of the total damping coefficient β tot ( x ) near the half-way of the domain wall run is due to the influence of the magnetic stray fields. These fields have a character of irregular oscillations and are directed approximately perpendicular to the local easy direction of the ribbon layer through which the domain wall propagates. The damping coefficient β e . c . ( x ) determined by eddy-currents has the maximal value close to the ribbon middle and decreases linearly to zero when the domain wall approaches the ribbon surface. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect