Phase Transitions, Phase Coexistence, and Piezoelectric Switching Behavior in Highly Strained BiFeO3 Films
Phase Transitions, Phase Coexistence, and Piezoelectric Switching Behavior in Highly Strained BiFeO3 Films
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DOI：
10.1002/adma.201302066
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发表时间：
2013-10-01
影响因子：
29.4
通讯作者：
Christen, H. M.
中科院分区：
文献类型：
--
作者：
Beekman, C.;Siemons, W.;Christen, H. M.
高度应变的BiFeO3薄膜在430摄氏度时转变为真正的四极状态，但在更高的温度下（类似于800摄氏度）仍保持极性。压电开关仅在高达300摄氏度的温度下是可能的，即，在应变稳定多晶型物的条纹状共存的温度下。
Highly strained BiFeO3 films transition into a true tetragonal state at 430 degrees C but remain polar to much higher temperatures (similar to 800 degrees C). Piezoelectric switching is only possible up to 300 degrees C, i.e., at temperatures for which strain stabilizes the stripe- like coexistence of multiple polymorphs.