Exchange bias in a core/shell magnetic nanoparticle: Monte Carlo simulation

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dc.creatorWu, M. H.
dc.creatorLi, Q. C.
dc.creatorLiu, J. M.
dc.date2006-12-09
dc.date.accessioned2026-07-07T07:31:37Z
dc.date.available2026-07-07T07:31:37Z
dc.descriptionBy using Monte Carlo simulation on a ferromagnetic core/antiferromagnetic shell nanoparticle, we investigate in details the exchange bias of the magnetic hysteresis as a function of both core radius and shell thickness, at low temperature. It is found that the exchange bias is very sensitive to the core radius and a small variation of the radius may lead to a big fluctuation of the bias. In a general tendency the exchange bias is enhanced by increasing shell thickness and decreasing core radius. The intrinsic correlation between the exchange bias and the spin configuration on the core-shell interface is demonstrated. We further investigate the dependence of the exchange bias on temperature and random field inside the nanoparticle, indicating a monotonous decreasing of the bias with the magnitude of random field and temperature, respectively.
dc.identifierhttps://arxiv.org/abs/cond-mat/0612228
dc.identifierhttp://arxiv.org/abs/cond-mat/0612228
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118819
dc.subjectMaterials Science
dc.subjectDisordered Systems and Neural Networks
dc.titleExchange bias in a core/shell magnetic nanoparticle: Monte Carlo simulation
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