Phase field simulation of the 180° domain-switching process in PbTiO₃ single crystal under an antiparallel electric field

Abstract

The process of 180° domain switching in PbTiO₃ single crystal under an antiparallel electric field was investigated by the three-dimensional phase field simulation, especially the effect of electric field on the type and duration of domain switching. It is found that the polarization reversal of domains takes place under an antiparallel electric field in PbTiO₃ single crystal. The results of the phase field simulation indicate that there is only 90° domain switching under a weak electric field. With the rise of the electric field, 180° domain switching appears. If the electric field is strengthened further, 90° domain switching disappears and the duration of domain switching is shortened.

Keywords

phase field simulation / ferroelectric materials / electric field / domain switching

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