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Type: Artigo de periódico
Title: Ferromagnetic Nanoclusters Formed By Mn Implantation In Gaas
Author: Couto Jr. O.D.D.
Brasil M.J.S.P.
Iikawa F.
Giles C.
Adriano C.
Bortoleto J.R.R.
Pudenzi M.A.A.
Gutierrez H.R.
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 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.
Rights: aberto
Identifier DOI: 10.1063/1.1863436
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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