TITLE

Ferromagnetic nanoclusters formed by Mn implantation in GaAs

AUTHOR(S)
Couto, 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.
PUB. DATE
February 2005
SOURCE
Applied Physics Letters;2/14/2005, Vol. 86 Issue 7, p071906
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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.
ACCESSION #
16581281

 

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