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http://acervodigital.unesp.br/handle/11449/68135- Title:
- Ferromagnetic nanoclusters formed by Mn implantation in GaAs
- Universidade Estadual de Campinas (UNICAMP)
- Lab. Nac. de Luz Síncrotron
- Universidade Federal do Rio Grande do Sul (UFRGS)
- Universidade Estadual Paulista (UNESP)
- Ins. Mat. Res.
- Nizhny Novgorod Sate University
- 0003-6951
- 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.
- 14-Feb-2005
- Applied Physics Letters, v. 86, n. 7, p. 1-3, 2005.
- 1-3
- 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
- http://dx.doi.org/10.1063/1.1863436
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/68135
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