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Título: | Direct imaging of the magnetic polarity and reversal mechanism in individual Fe3-xO4 nanoparticles |
Autor: | Moya, Carlos; Iglesias-Freire, Óscar CSIC ORCID; Pérez, Nicolás; Batlle, Xavier; Labarta, Amilcar; Asenjo Barahona, Agustina CSIC ORCID | Fecha de publicación: | 3-abr-2015 | Editor: | Royal Society of Chemistry (UK) | Citación: | Nanoscale 7(19): 8110-8114 (2015) | Resumen: | This work reports on the experimental characterization of the magnetic domain configurations in cubic, isolated Fe3-xO4 nanoparticles with a lateral size of 25-30 nm. The magnetic polarity at remanence of single domain ferrimagnetic Fe3-xO4 nanoparticles deposited onto a carbon-silicon wafer is observed by magnetic force microscopy. The orientations of these domains provide a direct observation of the magneto-crystalline easy axes in each individual nanoparticle. Furthermore, the change in the domain orientation with an external magnetic field gives evidence of particle magnetization reversal mediated by a coherent rotation process that is also theoretically predicted by micromagnetic calculations. | Versión del editor: | http://doi.org/10.1039/C5NR00592B | URI: | http://hdl.handle.net/10261/184457 | DOI: | 10.1039/c5nr00592b | Identificadores: | doi: 10.1039/c5nr00592b e-issn: 2040-3372 issn: 2040-3364 |
Aparece en las colecciones: | (ICMM) Artículos |
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