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Intergrowth Bi₂WO₆–Bi₃TiNbO₉ ferroelectrics with high ionic conductivity

Yi, Z. G.; Li, Y. X.; Wen, Z. Y.; Wang, S. R.; Zeng, J. T.; Yin, Q. R.


Two dielectric relaxation loss peaks associated with oxygen-ion diffusion in the intergrowth Bi₂WO₆–Bi₃TiNbO₉(Bi₅TiNbWO₁₅) bismuth layered ferroelectrics were observed. The activation energy and the relaxation time at infinite temperature, for these two peaks, were determined to be (0.89 eV, 1.3×10⁻¹³s) and (0.84 eV, 3.6×10⁻¹⁰s). The ac impedance spectroscopy indicated that the Bi₅TiNbWO₁₅ceramic is an ionic conductor with an electrical conductivity of approximately 2.6×10⁻²S/cm at a...[Show more]

CollectionsANU Research Publications
Date published: 2005-05-03
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.1925760


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