光致增强铁电单晶的交流极化品质及机械品质因子

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-02-11 DOI:10.1063/5.0251350

Xinyu Jin, Yu Wang, Xiangda Meng, Bohan Xing, Xing Wen, Jinyu Ruan, Xiaoou Wang, Chengpeng Hu, Peng Tan, Hao Tian

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引用次数: 0

摘要

交流电极化和光场作为调节铁电晶体畴结构和改善其物理性能的畴工程方法，由于其方便、有效和经济的优点而得到了广泛的研究。在这项研究中，我们提出了一种LACP方法（带隙以上光照明下的ACP），与仅ACP相比，Mn和fe掺杂的KTa1−xNbxO3单晶的透明度和电光性能得到了改善。与传统高温直流极化法相比，LACP极化法极化样品的机械质量因子（Qm = 538）显著提高了206%。结果表明，缺陷偶极子的光诱导重取向是提高ACP质量和Qm的主要原因。本研究为多功能器件的材料设计提供了一种高效、快速的思路。

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Light-induced enhancement of alternating current poling quality and mechanical quality factor in ferroelectric single crystals

Alternating current poling (ACP) and light fields have been studied as domain engineering methods for regulating the domain structures and improving the physical properties of ferroelectric crystals because of their convenience, effectiveness, and economic advantages. In this study, we propose a LACP method (ACP under above-bandgap light illumination), by which the transparency and electro-optic properties of Mn- and Fe-doped KTa1−xNbxO3 single crystals were improved compared with only ACP. Furthermore, the mechanical quality factor (Qm = 538) of the sample poled using the LACP method increased significantly by 206% in contrast to that of the sample poled by the conventional high-temperature direct current poling method. The results reveal that the light-induced reorientation of defect dipoles is responsible for the enhancement of the ACP quality and Qm. This study provides an efficient and fast poling approach to the material design for multifunctional devices.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.