Title
Double hysteresis loops at room temperature in NaNbO3-based lead-free antiferroelectric ceramics
Campus Units
Materials Science and Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
12-27-2017
Journal or Book Title
Materials Research Letters
Volume
6
Issue
3
First Page
159
Last Page
164
DOI
10.1080/21663831.2017.1419994
Abstract
Polarization-field double hysteresis loops have hardly ever been observed at room temperature in polycrystalline NaNbO3, one of a few lead-free antiferroelectric compounds. In this Letter, it is shown that the exposure of a modified NaNbO3 ceramic to bipolar electric fields of ±160 kV/cm at 100°C can preserve the double hysteresis loops at room temperature. These double hysteresis loops can still be observed after 125 days room temperature aging with some decay in maximum polarization. Frequency dependence analysis suggests that the double hysteresis loops originate from the antiferroelectric ↔ ferroelectric phase transition, not the charged defects.
A novel electrical treatment of a NaNbO3-based polycrystalline ceramic to achieve double hysteresis loops at room temperature is reported for the first time.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Owner
The Authors
Copyright Date
2017
Language
en
File Format
application/pdf
Recommended Citation
Tan, Xiaoli; Xu, Zunping; Liu, Xiaoming; and Fan, Zhongming, "Double hysteresis loops at room temperature in NaNbO3-based lead-free antiferroelectric ceramics" (2017). Materials Science and Engineering Publications. 283.
https://lib.dr.iastate.edu/mse_pubs/283
Comments
This article is published as Xiaoli Tan, Zunping Xu, Xiaoming Liu & Zhongming Fan (2018) Double hysteresis loops at room temperature in NaNbO3-based lead-free antiferroelectric ceramics, Materials Research Letters, 6:3, 159-164. doi: 10.1080/21663831.2017.1419994. Posted with permission.