Incorporation of lanthanide ions in lead titanate

A. Pelaiz-Barranco, Y. Mendez-Gonzalez, D. C. Arnold, P. Saint-Gregoire, D. J. Keeble

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    Abstract

    Lanthanide ion doping of lead titanate was investigated using structural and differential scanning calorimetry measurements. Dense ceramics samples were prepared with starting compositions, Pb(1-3x/2)Ln (x) TiO3, assuming A-site substitution of Ln = La, Nd, Sm, Eu, Gd and Dy, at 2 and 8 at.%. Doping with La3+ reduced the tetragonality and cell volume. A systematic recovery in these values was observed for the smaller Ln(3+) ions, suggesting the onset of partial substitution of the Ln ions at the B-site. The ferroelectric-paraelectric transition temperatures also recovered, consistent with an increased probability of B-site occupation with decreasing ion size. Evidence for site occupancy obtained from the presence cation vacancies is also discussed.

    Original languageEnglish
    Pages (from-to)1094-1099
    Number of pages6
    JournalJournal of Materials Science
    Volume47
    Issue number2
    DOIs
    Publication statusPublished - Jan 2012

    Keywords

    • PBTIO3 THIN-FILMS
    • RARE-EARTH CATIONS
    • SITE OCCUPANCY
    • B SITES
    • BATIO3
    • ER
    • CERAMICS
    • CRYSTAL
    • SYSTEM
    • RESONANCE

    Cite this

    Pelaiz-Barranco, A., Mendez-Gonzalez, Y., Arnold, D. C., Saint-Gregoire, P., & Keeble, D. J. (2012). Incorporation of lanthanide ions in lead titanate. Journal of Materials Science, 47(2), 1094-1099. https://doi.org/10.1007/s10853-011-5900-2