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arXiv 0812.1437cond-mat.mtrl-sci
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薄膜和体铁电体的四种开关类型

Four switching categories for thin-film and bulk ferroelectrics

X. J. Lou

摘要:

我们将铁电体包括外延/多晶薄膜和单晶/陶瓷块体在不同外加电场下的开关动力学分为四类,这取决于相邻部分之间的开关促进效应引起的去极化场和/或极化反转是否可以忽略。我们表明,我们最近开发的统计模型[Journal of Physics:Condensed Matter 21,012207(2009)]以其广义形式适用于所有这四个类别。最后,将本文模型与传统的Kolmogorov-Avrami-Ishibashi模型进行了比较,并讨论了不同n时开关电流的行为。

英文摘要:

We classify the switching kinetics of ferroelectrics including both epitaxial/polycrystalline thin films and single-crystalline/ceramic bulks at various applied fields into four categories, depending on whether the depolarization field and/or the polarization reversal induced by the switching promotion effect between adjacent parts can be neglected. We show that our statistical model developed very recently [Journal of Physics: Condensed Matter 21, 012207 (2009)] in its generalized form applies to all these four categories. Finally we make the comparison between our model and the conventional Kolmogorov-Avrami-Ishibashi model and discuss the behavior of the switching currents for different n.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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