Ferroelectric properties of intergrowth Bi4Ti3O12-SrBi4Ti4O15 ceramics
Ferroelectric properties of intergrowth Bi4Ti3O12-SrBi4Ti4O15 ceramics
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DOI：
10.1063/1.1328366
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发表时间：
2000-11-27
影响因子：
4
通讯作者：
Kudo, T
中科院分区：
文献类型：
--
作者：
Noguchi, Y;Miyayama, M;Kudo, T
铁电共生Bi4Ti3O12-SrBi4Ti4O15已被证明具有30多℃/cm(2)的大残余极化（2P(r)）和610℃的高居里温度。粉末x射线衍射图的Rietveld分析表明，在Bi2O2层中存在两种Bi离子。Bi2O2层中的一个Bi离子沿着极化方向向另一个Bi离子偏移了约2%的参数a，这将导致较大的2P(r)。(C) 2000年美国物理研究所。[s0003 - 6951(00) 00548 - 9]。
Ferroelectric intergrowth Bi4Ti3O12-SrBi4Ti4O15 has been demonstrated to have a large remanent polarization (2P(r)) of 30 muC/cm(2) and a high Curie temperature of 610 degreesC using bulk ceramics. The Rietveld analysis of the powder x-ray diffraction patterns showed that there are two kinds of Bi ions in Bi2O2 layers. One Bi ion in the Bi2O2 layers was displaced to the other Bi ion along the polarization direction by about 2% of parameter a, which would contribute to the large 2P(r). (C) 2000 American Institute of Physics. [S0003-6951(00)00548-9].