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Hyperfine Interactions

, Volume 55, Issue 1–4, pp 1273–1277 | Cite as

Accurate determination of the Mössbauer spectrum hyperfine parameters and correlation withTc in YBa2Cu3−x57Fe x O7−δ (0.01≦x≦0.15)

  • J. L. Dormann
  • S. Sayouri
  • G. T. Bhandage
  • S. C. Bhargava
  • G. Priftis
  • H. Pankowska
  • O. Gorochov
  • R. Suryanarayanan
Superconductors

Abstract

High statistics room temperature Mössbauer spectra have been performed on ten YBa2Cu3−xFe x O7−δ (0.01≦x≦0.15) samples. The different fit solutions (including broadening of the lines) are tested with “χ2” factor analysis. Only two solutions are valid with almost similar parameters. The results on present samples and our previous results on various materials made under different heat treatments show thatTc is governed byx and the relative population of one of the iron species. These species can be related to highly coordinated irons in the chains.

Keywords

Iron Thin Film Heat Treatment High Statistic Accurate Determination 
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 A.G. Scientific Publishing Company 1990

Authors and Affiliations

  • J. L. Dormann
    • 1
  • S. Sayouri
    • 1
    • 3
  • G. T. Bhandage
    • 1
  • S. C. Bhargava
    • 1
  • G. Priftis
    • 2
  • H. Pankowska
    • 2
  • O. Gorochov
    • 2
  • R. Suryanarayanan
    • 2
  1. 1.Laboratoire de MagnétismeCNRSMeudon CedexFrance
  2. 2.Laboratoire de Physique des Solides de BellevueCNRSMeudon CedexFrance
  3. 3.Département de PhysiqueUniv. de FesMaroc

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