Structure and magnetism in the oxygen-deficient perovskites Ce 1-xSrxCoO3-δ (x ≥ 0.90)

M. James*, K. S. Wallwork, R. L. Withers, D. J. Goossens, K. F. Wilson, J. Horvat, X. L. Wang, M. Colella

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)


    We have examined the structure and phase behaviour of strontium-doped Ce1-xSrxCoO3-δ and found that the perovskite form is stabilised over a relatively narrow solid solution range (x > 0.85). A combination of electron, powder X-ray and neutron diffraction has revealed tetragonal superstructures of the basic perovskite unit; (I4/mmm) 2ap × 2ap × 4ap (x = 0.90) and (P4/mmm) ap × ap × 2ap (x = 0.95). Magnetisation measurements show ferromagnetic behaviour under applied magnetic fields. Low temperature neutron diffraction of Ce0.10Sr 0.90CoO2.80 in zero field reveals a magnetic cell of dimension 2ap × 2ap × 4ap with an ordered cobalt moment of 1.7 B.M. at 25 K.

    Original languageEnglish
    Pages (from-to)1415-1431
    Number of pages17
    JournalMaterials Research Bulletin
    Issue number8
    Publication statusPublished - 11 Aug 2005


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