Enhanced domain dynamics in alternating current poled rhombohedral Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystals

IF 3.8 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2025-04-30 DOI:10.1111/jace.20610

Jeong-Woo Sun, Andrei Fluerasu, Zhengze Xu, Sipan Liu, Sang-Goo Lee, Wook Jo, Xiaoning Jiang, Jong Eun Ryu

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引用次数: 0

Abstract

The understanding of domain dynamics in ferroelectric materials is crucial for optimizing their performance in piezoelectric and electro-optic applications. Although previous studies have focused on static domain structures and macroscopic characteristics, the time-resolved approach of domains remains largely unexplored. In this study, we compare the dynamic responses of direct current (DC) and alternating current (AC) poled [001]-oriented rhombohedral Pb(Mg_1/3Nb_2/3)O₃–PbTiO₃ (PMN–PT) single crystals using X-ray photon correlation spectroscopy (XPCS) during the application of external electric fields. Our results demonstrate that the AC-poled sample exhibit enhanced reconfiguration of domain variants in response to driving fields compared to the DC-poled counterpart, as evidenced by accelerated correlation decay and faster relaxation time. This phenomenon is attributed to enhanced reversible domain wall motion achieved through AC poling, which facilitates field-induced domain realignment. These findings provide insight into the relationship between dynamics and macroscopic properties in relaxor-PT single crystals for high-performance applications.

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Pb(Mg1/3Nb2/3) O3-PbTiO3单晶的畴动力学增强

了解铁电材料的畴动力学对于优化其在压电和电光应用中的性能至关重要。虽然以往的研究主要集中在静态域结构和宏观特征上，但域的时间分辨方法仍未得到充分的探索。在本研究中，我们利用x射线光子相关光谱（XPCS）比较了直流（DC）和交流（AC）极化[001]取向菱面体Pb(Mg1/3Nb2/3) O3-PbTiO3 （PMN-PT）单晶在外加电场作用下的动态响应。我们的研究结果表明，与直流极化样品相比，交流极化样品在驱动场的响应中表现出增强的域变体重构，这可以通过加速的相关衰减和更快的弛豫时间来证明。这种现象归因于通过交流极化实现的可逆畴壁运动增强，从而促进了场致畴重新排列。这些发现为弛豫pt单晶的高性能应用提供了动力学和宏观性质之间的关系。

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.