At the phase transition temperature region, the pyroelectric response changes its polarity with time, indicating the two phases coexistence.
在相变温度范围，发现热释电响应随时间改变极性，表明晶体中两相共存。
We comprehensively investigate and discuss the relation in the tetragonal, rhombohedral and coexistence phase region of PZT.
我们对PZT四方相区、三角相区和混合相区介电常数与晶格畸变的关系进行了全面研究和探讨。
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