Why lanthanum-substituted bismuth titanate becomes fatigue free in a ferroelectric capacitor with platinum electrodes
Why lanthanum-substituted bismuth titanate becomes fatigue free in a ferroelectric capacitor with platinum electrodes
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DOI：
10.1063/1.1381038
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发表时间：
2001-06-25
影响因子：
4
通讯作者：
Wang, YN
中科院分区：
文献类型：
--
作者：
Ding, Y;Liu, JS;Wang, YN
Bi4Ti3O12（BTO）是一种Bi层状钙钛矿氧化物，在反复的铁电极化反转后显示出疲劳。另一方面，Bi_（3.25）La_（0.75）Ti_3O_（12）（BLT）是无疲劳的。从一个广泛的透射电子显微镜的研究，它被发现，有一个高密度的反相界（APBs）在BLT一样，在无疲劳的SrBi2Ta2O9，但不是在BTO。这表明，APB的存在可能对Bi层状钙钛矿氧化物的无疲劳行为起着关键作用。(C)2001年美国物理学会。
Bi4Ti3O12, (BTO) a Bi-layered perovskite oxide, shows fatigue after repeated ferroelectric polarization reversals. On the other hand, Bi3.25La0.75Ti3O12 (BLT) is fatigue free. From an extensive transmission electron microscopy study, it was found that there is a high density of antiphase boundaries (APBs) in BLT like in the fatigue-free SrBi2Ta2O9 but not in BTO. It is proposed that the existence of APBs possibly plays a key role in the fatigue-free behavior of Bi-layered perovskite oxides. (C) 2001 American Institute of Physics.