The lattice constants show a decreasing trend from Ca 2 SnFeO 6 (7.99 Å) to Ba 2 SnFeO 6 (7.85 Å) due to variation of the atomic size.
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Analysing cation-modified magnetic perovskites A<sub>2</sub>SnFeO<sub>6</sub> (A = Ca, Ba): a DFT study.
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