Theoretical analysis reveals five independent domain pair configurations in SrBi2Ta2O9 ferroelectrics, highlighting crystallographic constraints on polarization switching.
The domain structure of the bismuth layered ferroelectric SrBi 2 Ta 2 O 9 (SBT) has been studied by group theoretical methods. It is shown that there should exist five types of domain pair independent of one another in SBT, namely: (1) translational domain pairs; (2) 180° (rotational) domain pairs; (3) translational -180° domain pairs; (4) 90° domain pairs; (5) translational -90° domain pairs. In addition, some experimental results are briefly discussed.
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Chen et al. (2000) studied this question.
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