Redox characteristics variations in the cation-ordered perovskite oxides BaLnMn2O5+δ (Ln = Y, Gd, Nd, and La) and Ca2Al1-xGaxMnO5+δ (0 ≤x≤ 1).

Redox characteristics variations in the cation-ordered perovskite oxides BaLnMn2O5+δ (Ln = Y, Gd, Nd, and La) and Ca2Al1-xGaxMnO5+δ (0 ≤x≤ 1).