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http://acervodigital.unesp.br/handle/11449/36234- Título:
- Oxygen mobility in SmBa2Cu3O7-delta measured by anelastic spectroscopy
- Universidade Estadual Paulista (UNESP)
- Universidade Federal do Espírito Santo (UFES)
- 0921-5093
- Anelastic spectroscopy has been performed on a sample of superconducting oxide SmBa2Cu3O7-delta (SBCO) using a torsion pendulum operating with frequency around 10 Hz. A thermally activated relaxation peak is observed near 500 K with the activation enthalpy of 1.55 +/- 0.03 eV and the pre-exponential factor of approximately 10(-15) s, which is attributed to the mobility of non-stoichiometric oxygen by jumps in positions O1 and O5 of the lattice. (c) 2006 Elsevier B.V. All rights reserved.
- 20-Dez-2006
- Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. Lausanne: Elsevier B.V. Sa, v. 442, n. 1-2, p. 79-81, 2006.
- 79-81
- Elsevier B.V.
- anelasticity
- SBCO oxides
- non-stoichiometric oxygen
- internal friction
- http://dx.doi.org/10.1016/j.msea.2006.04.132
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/36234
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