Effect of ammonolysis time on magnetic and transport properties of Sr2FeMoO6 compound

Structural and electromagnetic properties driven by oxygen vacancy in Sr2FeMoO6−δ double perovskite

“…In order to get some insight into the cation environment, the bond-valence sum of cations in Sr 2 FeMoO 6Àd is calculated and listed in Table 3. Based on the results of ammonolyzed Sr 2 FeMoO 6 compound [28], the bond valence of Mo increases, while that of Fe decreases with ammonolyzed time. Contrary to the above Sr 2 FeMo(O, N) 6 compound, some oxygen atoms are removed from Sr 2 FeMoO 6 in our case, and the bond-valence of Mo decreases from þ5.15 (A compound) to þ4.56 (B compound), while that of Fe increases from þ3.13 (A compound) to þ3.35 (B compound).…”