Flexoelectric Effect in the Reversal of Self-Polarization and Associated Changes in the Electronic Functional Properties of BiFeO3 Thin Films
Flexoelectric Effect in the Reversal of Self-Polarization and Associated Changes in the Electronic Functional Properties of BiFeO3 Thin Films
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DOI：
10.1002/adma.201301601
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发表时间：
2013-10-01
影响因子：
29.4
通讯作者：
Noh, Tae Won
中科院分区：
文献类型：
--
作者：
Jeon, Byung Chul;Lee, Daesu;Noh, Tae Won
挠曲电性在BiFeO3外延薄膜自极化方向的反转中起着重要的作用。挠曲电效应和界面效应相互竞争以确定自极化状态。在区域I中，自极化向下，因为界面效应比挠曲电效应更占主导地位。在区域II中，自极化向上，因为挠曲电效应变得比界面效应更占主导地位。
Flexoelectricity can play an important role in the reversal of the self-polarization direction in epitaxial BiFeO3 thin films. The flexoelectric and interfacial effects compete with each other to determine the self-polarization state. In Region I, the self-polarization is downward because the interfacial effect is more dominant than the flexoelectric effect. In Region II, the self-polarization is upward, because the flexoelectric effect becomes more dominant than the interfacial effect.