Enhanced Tetragonality in (x)PbTiO3-(1-x)Bi(B′B″)O3 systems: Bi(Zn3/4WN1/4)O3
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Abstract
Solid solutions in the (x)PbTiO3–(1−x)Bi(Zn3/4W1/4)O3 system have been examined by x-ray diffraction, dielectric measurements, and thermal analysis. Bi(Zn3/4W1/4)O3increases the tetragonality and Curie temperature of PbTiO3 which reach a value of 1.08 and 530 °C, respectively, at the limit of the single-phase perovskite forming region (x~0.8). The observation of a sustained increase in the tetragonality in this system is similar to the behavior of the (x)PbTiO3–(1−x)Bi(Zn1/2Ti1/2)O3 system and highlights the unique properties of Bi-based systems when the B sites contain high concentrations of highly polarizable cations.
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Postprint version. Published in Applied Physics Letters, Volume 89, Issue 13, Article 132907, September 2006, 3 pages. Publisher URL: http://scitation.aip.org/aplo/