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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/129542
Equilibrium and dynamic behaviour of (weakly) interacting assemblies of magnetic nanoparticles
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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.
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VERNAY, F., et al. Equilibrium and dynamic behaviour of (weakly) interacting assemblies of magnetic nanoparticles. Journal of Physics: Conference Series. 2014. Vol. 521, num. 012010-1-012010-4. ISSN 1742-6588. [consulted: 7 of October of 2026]. Available at: https://hdl.handle.net/2445/129542