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 

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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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