Classification of laminate domain patterns in ferroelectrics
Classification of laminate domain patterns in ferroelectrics
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DOI：
10.1103/physrevb.83.184120
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发表时间：
2011-05
影响因子：
3.7
通讯作者：
N. Tsou;P. Potnis;J. Huber
中科院分区：
文献类型：
--
作者：
N. Tsou;P. Potnis;J. Huber
已知铁电晶体采用低能量、相容畴配置。观察表明，这些配置通常是多级层压图案。在这项工作中，提出了一种方法来分类和枚举的层压域模式，可以形成。利用铁电单晶中层状结构的精确相容性准则，求出了极性四元晶系中所有的二阶畴排列。令人惊讶的是，只有8个不同的秩-2层压图案，满足兼容性条件，在所有的畴walls. These模式进行了分类和相关的观察领域在单晶体中，表现出良好的协议。
Ferroelectric crystals are known to adopt low-energy, compatible domain configurations. Observations show that these configurations are commonly multirank laminate patterns. In this work, a method to classify and enumerate the laminate domain patterns that can form is presented. The criteria of exact compatibility for laminates structures in a ferroelectric single crystal are used to find all the rank-2 arrangements of domains in the polar tetragonal crystal system. Surprisingly, only eight distinct rank-2 laminate patterns that satisfy compatibility conditions at all domain walls are found. These patterns are classified and correlated with observations of domains in single crystals, showing good agreement.