Abstract

Time dependences of permittivity and optical transmission in the Pb(Mg_1/3Nb_2/3)O₃–xPb(Zr_0.53Ti_0.47)O₃ (x = 16, 23, and 33%) transparent ferroelectric ceramics are studied in the electric fields of 0 < E< 6 kV/cm. It is shown that even in fields, which are less than the coercive field, a sharp decrease in the permittivity occurs in compounds with x equal to 16 and 23% in a short time, while these changes in the ceramics with x = 33% are significantly smaller and occur over a longer time. It is found that the stability of the phase induced in the field after its switching-off significantly depends on the composition of studied ceramics: the higher the x value is, the more stable the induced phase. The observed difference in the time dependences of permittivity and stability of the induced phase in ceramics with different composition is explained by different sizes of ferroelectric domains.

中文翻译：

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PbMg 1/3 Nb 2/3 O 3 –x Pb（Zr 0.53 Ti 0.47）O 3的诱导相变透明陶瓷

摘要

在PB（Mg的介电常数和光传输的时间依赖性_1/3的Nb _2/3）O ₃ -x的Pb（Zr的_{0 。 53}的Ti _{0 。 47}）O ₃（X = 16，23，和33％）透明铁电在0 <E < 6 kV / cm的电场中研究了陶瓷。结果表明，即使在小于矫顽场的场中，在短时间内x等于16和23％的化合物的介电常数也会急剧下降，而x的陶瓷中的介电常数却发生了变化。= 33％的物体明显更小，并且发生时间更长。已经发现，在场关断后在场中感应的相的稳定性在很大程度上取决于所研究的陶瓷的成分：x值越高，感应相越稳定。在不同组成的陶瓷中，所观察到的介电常数和诱导相稳定性的时间依赖性差异是由铁电畴尺寸的不同引起的。