TITLE

Intergrowth Bi2WO6–Bi3TiNbO9 ferroelectrics with high ionic conductivity

AUTHOR(S)
Yi, Z. G.; Li, Y. X.; Wen, Z. Y.; Wang, S. R.; Zeng, J. T.; Yin, Q. R.
PUB. DATE
May 2005
SOURCE
Applied Physics Letters;5/9/2005, Vol. 86 Issue 19, p192906
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
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, 1.3×10-13 s) and (0.84 eV, 3.6×10-10 s). The ac impedance spectroscopy indicated that the Bi5TiNbWO15 ceramic is an ionic conductor with an electrical conductivity of approximately 2.6×10-2 S/cm at a temperature of 1073 K.
ACCESSION #
17164801

 

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