Low-temperature raman studies of Pb(ZrxTi1-x)O3 and Pb1-3y/2NdyTiO3 ceramics

Johannes Frantti, Jyrki Lappalainen, Vilho Lantto, Shigeru Nishio, Masato Kakihana

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    Abstract

    Raman scattering studies of lead zirconate titanate Pb(ZrxTi1-x)O3 (PZT), 0.10 ≤ x ≤ 0.80, and Nd-modified lead titanate Pb1-3y/2NdyTiO3 (PNT), y = 0.02, 0.10, bulk ceramics were carried out at ambient temperatures between 4.2 and 297 K. Our measurements reveal splitting of the E ⊕ B1 symmetry peak at low temperatures in both PZT and PNT samples. Splitting or a very asymmetrical line shape of the three other E(TO) peaks in the PZT and PNT samples was also found. These findings are related to the precursor effects. We also discuss the phase stability of lead titanate based perovskites from the point of view of our experimental results and recent theoretical calculations. A simple model explaining the differences between the low-frequency Raman spectra of tetragonal and trigonal PZTs is outlined.

    Original languageEnglish
    Pages (from-to)5679-5682
    Number of pages4
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume38
    Issue number9 B
    DOIs
    Publication statusPublished - 1999

    Keywords

    • Lead zirconate titanate
    • Neodymium, symmetry breaking
    • Raman spectroscopy

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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