Abstract
Substitution effect in double perovskites, Sr(FeRe)O3 (SFRO), was studied by Mössbauer spectroscopy and magnetization measurements. The samples were prepared by a sol–gel method. The fraction of alternately ordered Fe1 for SFRO is 72%, and the magnetization measured is consistent with \(3\times 0.72=2.16{\mu_B } \mathord{\left/ {\vphantom {{\mu _B } {\mbox{f}.\mbox{u}.}}} \right. \kern-\nulldelimiterspace} {\mbox{f}.\mbox{u}.}\), but the saturation magnetization drops to about one third of its initial value by substituting 5% Ba for Sr. It was considered to be due to the volume expansion of the lattice and the fine grains formed, as a result of the substitution of Ba ions.
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Yamakoshi, T., Nomura, K., Kitamori, T. et al. Substitution effect of Ba at the Sr sites in Sr(Fe,Re)O3 . Hyperfine Interact 191, 75–80 (2009). https://doi.org/10.1007/s10751-009-9955-2
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DOI: https://doi.org/10.1007/s10751-009-9955-2