Abstract The temperature dependences of the spectrum of polarization relaxation times above the temperature of the second-order phase transition of order-disorder type with relaxation Debye mode in a thin ferroelectric film are determined depending on its thickness and the degree of polarization fixation on the film surface. It has been established that the longest of the relaxation times τ1 behaves abnormally, which is unlimitedly increased τ1∼(T−Tf)−1 as the phase transition temperature Tf approaches, causing a critical deceleration of the relaxation processes. Taking into account intrinsic electric fields decreases the relaxation time at other identical film parameters.

中文翻译：

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薄膜铁电体在相变点附近的极化弛豫时间谱

摘要 铁电薄膜中具有弛豫德拜模式的有序-无序型二阶相变温度以上的极化弛豫时间谱的温度依赖性取决于其厚度和膜上的极化固定程度。表面。已经确定最长的弛豫时间 τ1 表现异常，随着相变温度 Tf 的接近，它无限增加 τ1∼(T-Tf)-1，导致弛豫过程的临界减速。考虑到本征电场会减少其他相同薄膜参数下的弛豫时间。