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Title: Interaction Dynamics Between Ferroelectric and Antiferroelectric Domains in a Pb Zr O 3 -Based Ceramic

Journal Article · · Physical Review Applied
 [1];  [2];  [1];  [2];  [1]
  1. Iowa State Univ., Ames, IA (United States)
  2. Pennsylvania State Univ., University Park, PA (United States)

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. Here, 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.

Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF)
Grant/Contract Number:
FG02-07ER46417; DMR-1700014; DMR-1629270
OSTI ID:
1609867
Alternate ID(s):
OSTI ID: 1564565
Journal Information:
Physical Review Applied, Vol. 11, Issue 6; ISSN 2331-7019
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (2)

TEM investigation of the domain structure in PbHfO3 and PbZrO3 antiferroelectric perovskites journal January 2020
Atomically resolved domain boundary structure in lead zirconate-based antiferroelectrics journal September 2019

Figures / Tables (6)