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In-plane and out-of-plane uniaxial anisotropies in rectangular arrays of circular dots studied by ferromagnetic resonance.
- Source :
-
Journal of Applied Physics . 5/15/2003, Vol. 93 Issue 10, p8418. 3p. 3 Graphs. - Publication Year :
- 2003
-
Abstract
- Ferromagnetic resonance at 9.2 GHz (X band) was used to characterize the uniaxial magnetic anisotropies in rectangular arrays of submicron circular Ni dots. The in-plane anisotropy, originated from interdot interactions in the rectangular lattice, and the perpendicular anisotropy, due to individual dot shape and magnetostriction, were explored. For in-plane dependencies of the resonance field (H[SUBr]), the main resonance mode angular dependence was well described by the standard Kittel formula. As the interdot distances decreased from 800 to 50 nm, the in-plane uniaxial anisotropy field changed from 5 to 130 Oe, in reasonable agreement with calculations. Simultaneously, the position of perpendicular (H[SUBr]) increased from 6.38 to 6.83 kOe, also following) Kittel's formula. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FERROMAGNETISM
*ANISOTROPY
*MAGNETOSTRICTION
*MAGNETISM
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 93
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 9717906
- Full Text :
- https://doi.org/10.1063/1.1556978