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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Analytic theory of hydrostatic stress effect on switching dynamics in ferroelectrics
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Analytic theory of hydrostatic stress effect on switching dynamics in ferroelectrics

机译：静水应力对铁电开关动力学影响的解析理论

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摘要

Polarization switching of ferroelectric materials is influenced by extensive variables such as electric field, temperature and stress. Currently a variety of theoretical approaches are used to gain a deeper understanding of the influence of extensive variables on the dynamic properties of ferroelectrics. In this paper a Landau-type model for second order bulk materials is used to study the extent to which hydrostatic stress affects the switching dynamic behaviours in ferroelectric material. Exact expressions for equilibrium polarization and switching time are derived analytically and then used to examine the dynamic behaviour in regimes of high electric field and hydrostatic stress. The second aspect of this work is to determine the relationship between empirical rules used to describe dynamic behaviour with the exact expressions derived from this model.
机译：铁电材料的极化转换受电场，温度和应力等广泛变量的影响。当前，使用各种理论方法来更深入地了解广泛的变量对铁电体动力学特性的影响。在本文中，使用二阶块状材料的Landau型模型来研究静水应力在多大程度上影响铁电材料中的开关动力学行为。通过解析得出关于平衡极化和切换时间的精确表达式，然后将其用于检查在高电场和静水压力条件下的动态行为。这项工作的第二个方面是确定用于描述动态行为的经验规则与从该模型得出的精确表达式之间的关系。

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