Double hysteresis loops at room temperature in NaNbO3-based lead-free antiferroelectric ceramics

Xiaoli Tan; Zunping Xu; Xiaoming Liu; Zhongming Fan

doi:10.1080/21663831.2017.1419994

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Double hysteresis loops at room temperature in NaNbO3-based lead-free antiferroelectric ceramics

Original Report | 更新时间：2026-08-19

- Double hysteresis loops at room temperature in NaNbO3-based lead-free antiferroelectric ceramics
- Materials Research Letters Vol. 6, Issue 3, Pages: 159-164(2018)
- 作者机构：
  
  1. Department of Materials Science and Engineering Iowa State University Ames
  2. Department of Materials Science and Engineering Iowa State University Ames IA USA
  3. Faculty of Materials and Energy Southwest University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2017.1419994
  CLC：
- Online First：27 December 2017，
  
  Published：2018
- 稿件说明：
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Xiaoli Tan, Zunping Xu, Xiaoming Liu, et al. Double hysteresis loops at room temperature in NaNbO3-based lead-free antiferroelectric ceramics[J]. Materials Research Letters, 2018, 6(3): 159-164.
DOI：

Xiaoli Tan, Zunping Xu, Xiaoming Liu, et al. Double hysteresis loops at room temperature in NaNbO3-based lead-free antiferroelectric ceramics[J]. Materials Research Letters, 2018, 6(3): 159-164. DOI： 10.1080/21663831.2017.1419994.

摘要

Abstract

BSTRACTPolarization-field double hysteresis loops have hardly ever been observed at room temperature in polycrystalline NaNbO

one of a few lead-free antiferroelectric compounds. In this Letter

it is shown that the exposure of a modified NaNbO

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.

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