Strong piezoelectric properties and electric-field-driven changes in domain structures in a PbZr0.87Ti0.13O3 single crystal

PbZr1- xTixO3 perovskite materials, known as PZT, are highly applicable, mainly due to their extraordinary piezoelectric properties. Recently, a technology of PZT crystals growth has been elaborated and opened new investigation possibilities for these compounds. In this paper, we demonstrate a highly piezoelectric response in PbZr0.87Ti0.13O3 single crystal. Under the action of an electric field, the piezoelectric coefficient d 33 turns out to be over 2500 pm V-1. The optical studies performed have proved a significant influence of the domain dynamics on such high-efficiency piezoelectric response. Monoclinic M and rhombohedral R phases have been observed in the lead zirconate-titanate crystals with a low Ti content. This coexistence of phases with different symmetries and dense domain walls are the primary sources of high piezoelectric response. We have observed that strong electric fields may act on randomly oriented polarization vectors so that the total piezoelectric activity disappears, and the unusual isotropization point near 250 degrees C appears. (C) 2021 The Authors. Published by Elsevier Ltd on behalf of Acta Materialia Inc.

Automated summary

PbZr1-xTixO3 perovskite materials, also known as PZT, exhibit highly applicable piezoelectric properties. Recent research has demonstrated the potential of PZT in piezoelectric response by optimizing crystal growth technology. The coexistence of phases with different symmetries and dense domain walls are the primary sources of their high piezoelectric response, while strong electric fields can lead to the disappearance of piezoelectric activity.