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First observation of structural changes around the Tc in TlBaCaCuO4.5+y superconductor studied by57Fe Mössbauer spectroscopy

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Abstract

57Fe Mössbauer spectroscopy was used to study57Fe doped high Tc TlBaCaCuO4.5+y superconductor between 70 and 295 K. Significant anomalous changes in the shape of the Mössbauer spectrum were observed around the Tc /105–120 K/. This experimental fact could be reproduced. Our finding can be associated with structural changes taking place around the Tc in TlBaCaCuO4.5+y superconductor.

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Authors and Affiliations

  1. Laboratory of Nuclear Chemistry, Eötvös University, Budapest, Hungary

    E. Kuzmann, Z. Homonnay & A. Vértes

  2. Central Research Institute for Chemistry, Budapest, Hungary

    I. Halász

  3. Department of Low Temperature Physics, Eötvös University, Budapest, Hungary

    J. Bánkuti & I. Kirschner

Authors
  1. E. Kuzmann
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  2. Z. Homonnay
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  3. A. Vértes
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  4. I. Halász
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  5. J. Bánkuti
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  6. I. Kirschner
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Kuzmann, E., Homonnay, Z., Vértes, A. et al. First observation of structural changes around the Tc in TlBaCaCuO4.5+y superconductor studied by57Fe Mössbauer spectroscopy. Journal of Radioanalytical and Nuclear Chemistry Letters 136, 121–125 (1989). https://doi.org/10.1007/BF02164101

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  • DOI: https://doi.org/10.1007/BF02164101

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