Unusual magnetic behavior in ferrite hollow nanospheres

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We report unusual magnetic behavior in iron oxide hollow nanospheres of 9.3 $nm$ in diameter. The large fraction of atoms existing at the inner and outer surfaces gives rise to a high magnetic disorder. The overall magnetic behavior can be explained considering the coexistence of a soft superparamagnetic phase and a hard phase corresponding to the highly frustrated cluster-glass like phase at the surface regions.
4 pages, 5 figures

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Other Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/159244

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0804.3292
 http://arxiv.org/abs/0804.3292

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arXiv