Title:
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Equilibrium and dynamic behaviour of (weakly) interacting assemblies of magnetic nanoparticles
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Author:
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Vernay, F.; Sabsabi, Z.; Iglesias, Òscar; Kachkachi, H.
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Other authors:
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Universitat de Barcelona |
Abstract:
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A still open issue related with the study of assemblies of magnetic nanoparticles, deposited on a substrate or embedded in a matrix, is that of the interplay between intrinsic features of the nanoparticles pertaining to their finite-size and boundary effects, and the collective effects entailed by their mutual interactions and their interactions with the hosting matrix or substrate. In this work we develop a semi-analytical approach that allows us to derive expressions for the magnetization and the susceptibility of interacting assemblies of single-domain ferromagnetic nanoparticles. We find that upon tuning the physical parameters pertaining to each nanoparticle or the shape of the assembly and its spatial arrangement, surface and inter-particle interactions may be set up to play additive or competitive roles leading to assemblies with optimal magnetic properties. |
Subject(s):
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-Nanopartícules -Magnetisme -Partícules (Física nuclear) -Nanoparticles -Magnetism -Particles (Nuclear physics) |
Rights:
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cc-by (c) Vernay, F. et al., 2014
http://creativecommons.org/licenses/by/3.0/es |
Document type:
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Article Article - Published version |
Published by:
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Institute of Physics (IOP)
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