High temperature Mössbauer studies of 57Fe: YSr2Cu3O7 related compounds containing oxyanions

Angel Bustamante Domínguez, R. B. Scorzelli, E. Baggio Saitovitch

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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 (SO42-), phosphate (PO43-) and borate (BO33-), 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.

Original languageEnglish
Pages (from-to)17-22
Number of pages6
JournalHyperfine Interactions
Issue number1-2
StatePublished - 1997
Externally publishedYes


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