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Article Dans Une Revue Scientific Reports Année : 2015

Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface

Résumé

Strong size-dependent variations of the magnetic anisotropy of embedded cobalt clusters are evidenced quantitatively by combining magnetic experiments and advanced data treatment. The obtained values are discussed in the frame of two theoretical models that demonstrate the decisive role of the shape in larger nanoparticles and the predominant role of the surface anisotropy in clusters below 3 nm diameter.
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Dates et versions

hal-02004517 , version 1 (01-02-2019)

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Simón Oyarzún, Alexandre Tamion, Florent Tournus, Véronique Dupuis, Matthias Hillenkamp. Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface. Scientific Reports, 2015, 5, pp.14749. ⟨10.1038/srep14749⟩. ⟨hal-02004517⟩
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