Abstract

For many decades, switching of ferroelectric polarization has been considered as a process of nucleation and growth of domains. Due to this mechanism, the switching time is limited from below to nanoseconds. Problems with interfaces and electric circuits even increase this time. In this article, we give brief review of new approach that can breakthrough decrease switching times by using freely propagating electromagnetic pulses. As examples, we show our recent results on ultrafast dynamic polarization switching. At the end, we discuss the reasons why it has not yet been possible to achieve a permanent polarization reversal.

中文翻译：

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通过（亚）皮秒电磁脉冲进行铁电开关

摘要

几十年来，铁电极化的转换一直被认为是畴的成核和生长过程。由于这种机制，切换时间被限制在几纳秒以内。这次接口和电路的问题甚至会增加。在本文中，我们简要回顾了可以通过使用自由传播的电磁脉冲来突破性地减少开关时间的新方法。例如，我们展示了我们最近在超快动态偏振切换方面的结果。最后，我们讨论了尚未实现永久极化逆转的原因。