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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2019

Ultrasmall CoFe2O4 magnetic nanoparticles in ferrofluids, influence of the synthesis on the magnetic anisotropies

Résumé

The magnetic properties of cobalt ferrites nanoparticles prepared using three different processes (thermal decomposition, polyol and co-precipitation synthesis routes) are investigated by X-ray Absorption Spectroscopy and X-ray Magnetic Circular Dichroism. The repartition of cobalt and iron ions amongst the various sites of the spinel structure is determined and correlated with their magnetic properties. The study reports on the influence of the synthesis method on the crystallographic order within a nanoparticle, and hence, on the magnetic anisotropy.
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Dates et versions

hal-02322987 , version 1 (25-10-2019)

Identifiants

  • HAL Id : hal-02322987 , version 1

Citer

Niéli Daffé, Véronica Gavrilov, Sophie Neveu, Fadi Choueikani, Marie-Anne Arrio, et al.. Ultrasmall CoFe2O4 magnetic nanoparticles in ferrofluids, influence of the synthesis on the magnetic anisotropies. Journal of Magnetism and Magnetic Materials, 2019. ⟨hal-02322987⟩
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