Campus Units

Materials Science and Engineering

Document Type

Article

Publication Version

Published Version

Publication Date

6-21-2019

Journal or Book Title

Physical Review Applied

Volume

11

Issue

6

First Page

064050

DOI

10.1103/PhysRevApplied.11.064050

Abstract

The antiferroelectric-ferroelectric phase transition in PbZrO3-based oxides is of both fundamental and practical importance. In ceramics in which such a transition readily occurs, the antiferroelectric and the ferroelectric phases often coexist in individual grains with a coherent interphase interface. In this work, the electric biasing in situ transmission electron microscopy technique is employed to directly observe a unique microstructural dynamic when ferroelectric and antiferroelectric domains are driven by a moderate electric field to interact. It is found that, under monotonic loading, the ferroelectric domain grows until it is blocked by the ferroelectric-antiferroelectric interface. At the same time, a kink is formed on the interface at the contact point. The interaction of the growing domain with the interface is interpreted in terms of depolarization field-assisted phase transition, which is supported by our phase-field simulation. Upon further bipolar cycling, the ferroelectric domain becomes less mobile and no longer reaches the ferroelectric-antiferroelectric interface, indicative of electric fatigue of the ferroelectric phase.

Comments

This article is published as Fan, Zhongming, Fei Xue, Goknur Tutuncu, Long-Qing Chen, and Xiaoli Tan. "Interaction Dynamics Between Ferroelectric and Antiferroelectric Domains in a PbZrO3-Based Ceramic." Physical Review Applied 11, no. 6 (2019): 064050. DOI: 10.1103/PhysRevApplied.11.064050. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Share

COinS