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

Oyarzun, Simon; Tamion, Alexandre; Tournus, Florent; Dupuis, Veronique; Hillenkamp, Matthias

Abstract

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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Título según WOS: ID WOS:000362259300001 Not found in local WOS DB
Título de la Revista: SCIENTIFIC REPORTS
Volumen: 5
Editorial: NATURE PORTFOLIO
Fecha de publicación: 2015
DOI:

10.1038/srep14749

Notas: ISI