The structure of two new non-centrosymmetric phases of oxygen deficient bismuth manganite

A. S. Eggeman, A. Sundaresan, C. N.R. Rao, P. A. Midgley

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The structure of two new phases in the bismuth manganite system are reported. The phases were determined by electron diffraction studies of two oxygen-deficient bulk samples. The first phase, a minority component of bulk BiMnO2.94 forms a n = 2 Ruddlesden-Popper phase with space group Cmc21. The second phase, from bulk BiMnO2.99, is an orthorhombic structure with space group Pmn21 and a unit cell approximately equal to times the parent perovskite cell. Importantly both phases are non-centrosymmetric and offer further potential for multiferroic studies.

    Original languageEnglish
    Pages (from-to)15417-15421
    Number of pages5
    JournalJournal of Materials Chemistry
    Volume21
    Issue number39
    DOIs
    Publication statusPublished - 21 Oct 2011

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