Campus Units
Materials Science and Engineering, Ames Laboratory
Document Type
Article
Publication Version
Published Version
Publication Date
9-18-2019
Journal or Book Title
Applied Physics Letters
Volume
115
Issue
12
First Page
122902
DOI
10.1063/1.5115039
Abstract
Domain boundary (DB) structures are of great importance for understanding the structure-property relationship in many ferroic crystals. Here, we present atomically resolved DB configurations in PbZrO3-based antiferroelectric ceramics. The Pb-cation displacement relative to B-site cations is precisely determined using aberration-corrected scanning transmission electron microscopy. We find that 90° DBs in undoped PbZrO3 can be as thin as one primitive cell of the perovskite structure, often appearing curved or zigzagged due to the complex dipole arrangement. In a chemically modified composition, Pb0.99Nb0.02[(Zr0.57Sn0.43)0.95Ti0.05]0.98O3, in which incommensurate modulations are present, the DB has a typical thickness of at least two primitive cells, with more or less aligned dipole moments. Our findings provide insights into establishing the structure-property relationship in antiferroelectrics, shedding light on the design and fabrication of domain-boundary electronics.
Copyright Owner
The Authors
Copyright Date
2019
Language
en
File Format
application/pdf
Recommended Citation
Ma, Tao; Fan, Zhongming; Tan, Xiaoli; and Zhou, Lin, "Atomically resolved domain boundary structure in lead zirconate-based antiferroelectrics" (2019). Materials Science and Engineering Publications. 349.
https://lib.dr.iastate.edu/mse_pubs/349
Comments
This article is published as Ma, Tao, Zhongming Fan, Xiaoli Tan, and Lin Zhou. "Atomically resolved domain boundary structure in lead zirconate-based antiferroelectrics." Applied Physics Letters 115, no. 12 (2019): 122902. DOI: 10.1063/1.5115039. Posted with permission.