| Full text | |
| Author(s): |
Vidal, F.
[1]
;
Zheng, Y.
[1]
;
Schio, P.
[2, 1]
;
Bonilla, F. J.
[1]
;
Barturen, M.
[1, 3, 4]
;
Milano, J.
[1, 3, 4]
;
Demaille, D.
[1]
;
Fonda, E.
[5]
;
de Oliveira, A. J. A.
[2]
;
Etgens, V. H.
[1, 6]
Total Authors: 10
|
| Affiliation: | [1] UPMC Univ Paris 6, CNRS, UMR 7588, Inst NanoSci Paris, F-75005 Paris - France
[2] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Paulo - Brazil
[3] UNCU CAB, CNEA CONICET, San Carlos De Bariloche, Rio Negro - Argentina
[4] UNCU CAB, Inst Balseiro, San Carlos De Bariloche, Rio Negro - Argentina
[5] Synchrotron SOLEIL, F-91192 Gif Sur Yvette - France
[6] UVSQ, F-78035 Versailles - France
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Physical Review Letters; v. 109, n. 11 SEP 14 2012. |
| Web of Science Citations: | 25 |
| Abstract | |
The mechanism of magnetization reversal has been studied in a model system of self-assembled cobalt nanowires with a 3 nm diameter. The structure, orientation and size of grains within the nanowires could be determined by high resolution transmission electron microscopy. The magnetic properties were probed using static and dynamic magnetization measurements. Micromagnetic modeling based on the structural analysis allows us to correlate the structure and the magnetic behavior of the wires, revealing competition between shape anisotropy, magnetocrystalline anisotropy and exchange in the localized reversal within Co hcp oriented grains. These results provide direct experimental evidence of the link between anisotropy fluctuations and reversal localization in nanowires. (AU) | |
| FAPESP's process: | 07/08649-5 - Magnetic and electronic properties in semiconducting oxides doped with transition metals |
| Grantee: | Pedro Schio de Noronha Muniz |
| Support Opportunities: | Scholarships in Brazil - Doctorate |