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Hyperfine Interactions

, Volume 93, Issue 1, pp 1683–1687 | Cite as

Mössbauer study of tin-doped 1-2-3 and 2-1-4 highTc superconductors

  • G. Quintana
  • R. C. Mercader
Superconductivity
  • 10 Downloads

Abstract

Samples of YBa2(Cu0.85Sn0.15)3O7−y (1-2-3), La2(Cu0.95Sn0.05)O44−x, and La1.85Ba0.15(Cu0.95Sn0.05)O4−x (2-1-4), with different oxygen stoichiometry, have been studied by Mössbauer spectroscopy. These measurements reveal the existence of two inequivalent sites for Sn in the (1-2-3) compounds. The (1-2-3) spectra display two quadrupole doublets which we associate with Sn in Cu(1) and Cu(2) sites, respectively. La compounds show a single quadrupole doublet.

Keywords

Oxygen Spectroscopy Thin Film Quadrupole Doublet Oxygen Stoichiometry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© J.C. Baltzer AG, Science Publishers 1994

Authors and Affiliations

  • G. Quintana
    • 1
  • R. C. Mercader
    • 2
  1. 1.Departamento de Física, Facultad de IngenieriaUniversidad de Buenos AiresBuenos AiresArgentina
  2. 2.Departamento de Física, Facultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina

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