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Type: Artigo de periódico
Title: Ferromagnetic nanoclusters formed by Mn impllantation in GaAs - art. no. 071306
Author: Couto, ODD
Brasil, MJSP
Iikawa, F
Giles, C
Adriano, C
Bortoleto, JRR
Pudenzi, MAA
Gutierrez, HR
Danilov, I
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 40degreesC, 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. (C) 2005 American Institute of Physics.
Country: EUA
Editor: Amer Inst Physics
Citation: Applied Physics Letters. Amer Inst Physics, v. 86, n. 7, 2005.
Rights: aberto
Identifier DOI: 10.1063/1.1863436
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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