Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/344890
Type: Artigo
Title: Size effects of the magnetic anisotropy of fcc cobalt nanoparticles embedded in copper
Author: Hillenkamp, Matthias
Oyarzún, Simón
Troc, Nicolas
Ramade, Julien
Tamion, Alexandre
Tournus, Florent
Dupuis, Véronique
Rodrigues, Varlei
Abstract: Cobalt nanoparticles embedded in copper matrices show strong size effects in the magnetic anisotropy with a non-monotonous dependence on the particle diameter. In this article we discuss quantitative values of the magnetic anisotropy in the frame of two models: in small clusters the surface anisotropy contribution dominates whereas larger particles (gt;3 nm diameter) have an elliptic shape leading to increased shape anisotropy. The crystalline structure of the particles is shown to be face-centered cubic, justifying that the magneto-crystalline anisotropy can be neglected.
Subject: Cluster
Nanopartículas
Anisotropia magnética
Cluster
Nanoparticles
Magnetic anisotropy
Country: Alemanha
Editor: Springer
Rights: fechado
Identifier DOI: 10.1140/epjd/e2017-80299-x
Address: https://link.springer.com/article/10.1140%2Fepjd%2Fe2017-80299-x
Date Issue: 2017
Appears in Collections:IFGW - Artigos e Outros Documentos

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