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|Type:||Artigo de periódico|
|Title:||Ferromagnetic Nanoclusters Formed By Mn Implantation In Gaas|
|Author:||Couto Jr. O.D.D.|
|Abstract:||Ferromagnetic clusters were incorporated into GaAs samples by Mn implantation and subsequent annealing. The composition and structural properties of the Mn-based nanoclusters formed at the surface and buried into the GaAs sample were analyzed by x-ray and microscopic techniques. Our measurements indicate the presence of buried MnAs nanoclusters with a structural phase transition around 40 °C, in accord with the first-order magneto-structural phase transition of bulk MnAs. We discuss the structural behavior of these nanoclusters during their formation and phase transition, which is an important point for technological applications. © 2005 American Institute of Physics.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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