Temperature-dependent processes of electric-induced antiferroelectric-to-ferroelectric phase transition

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Scripta Materialia Pub Date : 2025-05-11 DOI:10.1016/j.scriptamat.2025.116739

Tiantian Wu , Zhengqian Fu , Linhai Li , Xu Wang , Yue Luo , Ziyi Yu , Xuefeng Chen , Genshui Wang , Bin Xu , Fangfang Xu

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Abstract

PbZrO₃-based antiferroelectric materials are one of the most important candidates for high-power energy storage capacitors. Since the antiferroelectric structure is characterized by polar modulated configurations, the processes of antiferroelectric-to-ferroelectric phase transition could vary, depending on external stimulus. Here, we report temperature-tailored processes of electric field-induced antiferroelectric-to-ferroelectric transition in (Pb_0.93Sr_0.06)(Zr_0.98Ti_0.02)_0.98Nb_0.02O₃ (PSNZT), which change from single to multiple, and then back to single phase transitions at elevated temperatures. By applying in-situ heating X-ray diffraction and in-situ heating transmission electron microscopy, we revealed that the modulation of phase transition processes stems from the changing of dominant structural factors from atomic displacement ordering to modulation periods upon heating. The present findings will promote further understanding and exploration of antiferroelectric-to-ferroelectric phase transitions.

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电致反铁电-铁电相变的温度依赖过程

基于pbzro3的反铁电材料是大功率储能电容器的重要候选材料之一。由于反铁电结构的特征是极性调制构型，因此反铁电向铁电相变的过程可能会因外部刺激而变化。本文报道了电场诱导的（Pb0.93Sr0.06）（Zr0.98Ti0.02）0.98Nb0.02O3 （PSNZT）反铁电向铁电转变的温度调整过程，该过程在高温下由单相转变为多相，然后再回到单相转变。通过原位加热x射线衍射和原位加热透射电镜分析，揭示了相变过程的调制源于加热后原子位移顺序和调制周期等主要结构因素的变化。本研究结果将促进对反铁电到铁电相变的进一步理解和探索。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Scripta Materialia 工程技术-材料科学：综合

CiteScore

11.40

自引率

5.00%

发文量

581

审稿时长

34 days

期刊介绍： Scripta Materialia is a LETTERS journal of Acta Materialia, providing a forum for the rapid publication of short communications on the relationship between the structure and the properties of inorganic materials. The emphasis is on originality rather than incremental research. Short reports on the development of materials with novel or substantially improved properties are also welcomed. Emphasis is on either the functional or mechanical behavior of metals, ceramics and semiconductors at all length scales.