Abstract
We have studied temperature- and electric-field-induced phase transitions in ceramic samples of Pb1 − x La x [Zr0.7Sn0.2Ti0.1]1 − x /4O3 (0 < x ≤ 0.03) solid solutions. The results indicate that La3+ doping to x > 0.005 impedes long-range dipole-dipole interactions and stabilizes nonpolar phases below the Curie temperature. At a constant La3+ concentration, lowering the temperature facilitates a field-induced transition to a ferroelectric state. In thermally depoled samples, the first antiferroelectric → ferroelectric switching usually requires a higher bias voltage than do subsequent switchings.
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Original Russian Text © E.A. Bikyashev, E.A. Reshetnikova, M.I. Tostunov, 2009, published in Neorganicheskie Materialy, 2009, Vol. 45, No. 8, pp. 990–995.
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Bikyashev, E.A., Reshetnikova, E.A. & Tostunov, M.I. La3+ effect on dipole ordering in Pb1 − x La x [Zr0.7Sn0.2Ti0.1][1 − x/4]O3(0 < x ≤ 0.03) solid solutions. Inorg Mater 45, 919–924 (2009). https://doi.org/10.1134/S0020168509080184
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DOI: https://doi.org/10.1134/S0020168509080184