| Autor: |
Krycka, K. L., Maranville, B. B., Borchers, J. A., Castaño, F. J., Ng, B. G., Perkinson, J. C., Ross, C. A. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; Apr2009, Vol. 105 Issue 7, p07C120-07C123, 3p, 4 Graphs |
| Abstrakt: |
Neutron reflectometry was used to study the formation and evolution of magnetic domains within a patterned array of NiFe/Cu/Co ellipses. The measurements directly show that domains form upon relaxation away from hard axis magnetic saturation, and their size and shape distributions are invariant throughout the process. Modeling of the data demonstrates that uniform magnetic domains are commensurate with the ellipse structure, but are approximately 75 nm smaller in radius. Together these findings suggest that there is one magnetic domain per nanoparticle whose constituent moments rotate collectively as the field is varied. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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