The ferroelectric and fatigue properties of bismuth layer-structured ferroelectrics (BLSF), Sr x Bi4-x Ti3-x Ta x O12 (x=0–2) [SBTT-x] with m=3, are studied for the purpose of obtaining large remanent polarization, P r, and fatigue-free properties. From the measurement of D-E hysteresis loops using a standard Sawyer-Tower circuit, the value of 2P r for SBTT-0.3 ceramic was found to be the largest (2P r=24.6 µC/cm2) in the SBTT-x system. As a result of examining fatigue properties, SBTT-0.3 ceramic displays fatigue-free behavior up to about 1010 cycles. It is assumed that these results are caused by the substitiution of Ta and Sr ions.
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Nagata et al. (1999) studied this question.
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