Publicação: Ferromagnetic nanoclusters formed by Mn implantation in GaAs
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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.
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Emission intensities, Ferromagnetic nanoclusters, Room temperature, Temperature dependence, Atomic force microscopy, Energy dispersive spectroscopy, Lattice constants, Manganese, Phase transitions, Secondary ion mass spectrometry, Semiconducting gallium arsenide, Thermal expansion, Transmission electron microscopy, X ray diffraction analysis, Ferromagnetic materials
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Inglês
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Applied Physics Letters, v. 86, n. 7, p. 1-3, 2005.
