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

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...

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Autores principales: Oyarzún, Simón, Tamion, Alexandre, Tournus, Florent, Dupuis, Véronique, Hillenkamp, Matthias
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4593963/
https://www.ncbi.nlm.nih.gov/pubmed/26439626
http://dx.doi.org/10.1038/srep14749
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author Oyarzún, Simón
Tamion, Alexandre
Tournus, Florent
Dupuis, Véronique
Hillenkamp, Matthias
author_facet Oyarzún, Simón
Tamion, Alexandre
Tournus, Florent
Dupuis, Véronique
Hillenkamp, Matthias
author_sort Oyarzún, Simón
collection PubMed
description 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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spelling pubmed-45939632015-10-19 Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface Oyarzún, Simón Tamion, Alexandre Tournus, Florent Dupuis, Véronique Hillenkamp, Matthias Sci Rep Article 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. Nature Publishing Group 2015-10-06 /pmc/articles/PMC4593963/ /pubmed/26439626 http://dx.doi.org/10.1038/srep14749 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Oyarzún, Simón
Tamion, Alexandre
Tournus, Florent
Dupuis, Véronique
Hillenkamp, Matthias
Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface
title Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface
title_full Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface
title_fullStr Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface
title_full_unstemmed Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface
title_short Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface
title_sort size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4593963/
https://www.ncbi.nlm.nih.gov/pubmed/26439626
http://dx.doi.org/10.1038/srep14749
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