Abstract
Oxyanion substitutions at the copper sites can stabilize the Ba free phase YSr2Cu3O7 and allow synthesis to occur under ambient conditions (P.R. Slater and C. Greaves, 1991; P.R. Slater et al., 1993). Here we report in situ 57Fe Mössbauer spectroscopy experiments done in Y--Sr--Cu--O related oxides containing sulphate (SO4 2-), phosphate (PO4 3-) and borate (BO3 3-), in the temperature range 300 K ⩽ T ⩽ 723 K. From the results obtained it has been possible to study the kinetics of oxygen loss, as well as the temperature dependence of the Fe species.
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Bustamante Domínguez, A., Scorzelli, R. & Saitovitch, E.B. High temperature Mössbauer studies of 57Fe: YSr2Cu3O7 related compounds containing oxyanions. Hyperfine Interactions 110, 17–22 (1997). https://doi.org/10.1023/A:1012615230499
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DOI: https://doi.org/10.1023/A:1012615230499