Influence of surface anisotropy on the magnetization reversal of nanoparticles

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dc.creatorIglesias, Oscar
dc.creatorLabarta, Amilcar
dc.date2004-07-07
dc.date.accessioned2026-07-07T02:59:05Z
dc.date.available2026-07-07T02:59:05Z
dc.descriptionThe influence of surface anisotropy on the magnetization processes of maghemite nanoparticles with ellipsoidal shape is studied by means of Monte Carlo simulations. Radial surface anisotropy is found to favor the formation of hedgehog-like spin structures that become more stable as the surface anisotropy constant at the surface $k_S$ is increased form the value at the core. We have studied the change in the low temperature hysteresis loops with the particle aspect ratio and with $k_S$, finding a change in the magnetization reversal mode as $k_S$ or the particle elongation is increased.
dc.descriptionContribution to SCM2004 (2nd Seeheim Conference on Magnetism), to be published in Physica Status Solidi A. 4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0407176
dc.identifierhttp://arxiv.org/abs/cond-mat/0407176
dc.identifierPhys. Stat. Sol. C, 1, 3481 (2004)
dc.identifierdoi:10.1002/pssc.200405485
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24372
dc.subjectMaterials Science
dc.titleInfluence of surface anisotropy on the magnetization reversal of nanoparticles
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