About the crystal structure of La1-xSrxCoO3-δ (0≤x≤0.6)

Nicole M.L.N.P. Closset, René H.E. van Doorn, Henk Kruidhof, Jaap Boeijsma

Research output: Contribution to journalArticleAcademicpeer-review

32 Citations (Scopus)

Abstract

The crystal structure of La1−xSrxCoO3−δ (0≤x≤0.6) has been studied, using powder X-Ray diffraction. The crystal structure shows a transition from rhombohedral distorted perovskite for LaCoO3−δ into cubic perovskite for La0.4Sr0.6CoO3−δ. The cubic unit cell parameter is ac=3.8342(1) Å for La0.4Sr0.6CoO3−δ, the space group probably being Pm3m. Using a hexagonal setting, the cell parameters for La0.5Sr0.5CoO3−δ, are a=5.4300(3) Å, c=13.2516(10) Å; a=5.4375(1) Å, c=13.2313(4) Å for La0.6Sr0.4CoO3−δ; a=5.4437(1) Å, c=13.2085(5) Å for La0.7Sr0.3CoO3−δ; a=5.4497(2) Å, c=13.1781(6) Å for La0.8Sr0.2CoO3−δ and a=5.4445(2) Å, c=13.0936(6) Å for LaCoO3−δ with the space group probably being R3c.
Original languageEnglish
Pages (from-to)31-34
Number of pages4
JournalPowder diffraction
Volume11
Issue number1
DOIs
Publication statusPublished - 1996

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