Abstract
57Fe and151Eu Mössbauer spectroscopy and X-ray diffractometry measurements were performed with europium and iron containing Tl2(Ca0.8Eu0.2)Ba2(Cu0.98Fe0.02)2O8 and EuBa2Cu3O7-d high temperature superconductor samples in order to study the effect of europium incorporated in a Tl-containing high temperature superconductor. Significant differences have been found between the57Fe Mössbauer spectra of Tl-containing samples with and without Eu or between the151Eu Mössbauer spectra of Tl-containing and 1-2-3 type superconductors. The results can be interpreted by assuming that Eu can be localized at the Ca site in the Tl-containing superconductor.
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Kuzmann, E., Klencsár, Z. & Halász, I. 151Eu and57Fe Mössbauer and X-ray diffraction study of high temperature Tl-containing superconductor. Journal of Radioanalytical and Nuclear Chemistry, Articles 190, 401–405 (1995). https://doi.org/10.1007/BF02040018
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DOI: https://doi.org/10.1007/BF02040018