Ferromagnetic resonance studies of Ni nanowire arrays
(2001) Physical Review. B, Condensed Matter — Vol. 6414, n° 14 (2001)
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- Abstract
- Using ferromagnetic resonance, the angular dependence of the uniform precession mode of infinite cylinders is investigated at room temperature for low density Ni nanowire arrays, embedded in a polycarbonate membrane, with wire diameters ranging from 35 mn to 500 nm. All wires reveal a very similar behavior of the resonance field vs angle, independent of the wire diameter and wire density, corresponding to the uniform precession mode of an infinite cylinder including the shape demagnetization anisotropy and a small uniaxial anisotropy contribution. From the analysis of the angular dependence of the linewidth, the distribution of the wire orientation and the effective anisotropy field can be estimated. The latter is broadened due to the presence of a sub-structure in the absorption spectra.
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Citations
Ebels, U., Duvail, J., Wigen, P., Piraux, L., Buda, L., & Ounadjela, K. (2001). Ferromagnetic resonance studies of Ni nanowire arrays. Physical Review. B, Condensed Matter, 6414(14). https://hdl.handle.net/2078.5/42897 (Original work published 2001)