Evolution of Oxygen-Vacancy Ordered Crystal Structures in the Perovskite Series SrnFenO3n−1 (n=2, 4, 8, and ∞), and the Relationship to Electronic and Magnetic Properties

Over the oxygen composition range 2.5≤x≤3.0, the SrFeOx system exists as four distinct compounds with the nominal composition SrnFenO3n−1 (n=2, 4, 8, and ∞). The end member SrFeO3 (n=∞) possesses a simple cubic perovskite crystal structure, whereas the oxygen-deficient (n=2, 4, and 8) members each a...

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