Improving piezoelectric performance in PMN-0.26 PT single crystal via low frequency AC poling

IF 2.1 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER Solid State Communications Pub Date : 2024-10-05 DOI:10.1016/j.ssc.2024.115714

Xiyue Ding , Bijun Fang , Jilei Li , Tingyu Deng , Jie Jiao , Wenning Di , Di Lin , Li Lu , Haosu Luo

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Abstract

In this experiment, the alternating current poling (ACP) was applied to the 0.74 Pb(Mg_1/3Nb_2/3)O₃-0.26PbTiO₃ (PMN-0.26 PT) single crystal to explore the impact of low frequency (0.1 Hz) ACP on electrical performance. When the poling condition is loading 5 cycles at 14 kV/cm, high piezoelectric coefficient d₃₃ of 1780 pC/N and giant dielectric constant of 5881 are obtained for the ACP treatment sample, enhanced 42.4 % and 14.3 % by contrast with the conventional direct current poling (DCP), respectively. The values of coercive field, maximum strain, and converse piezoelectric constant d₃₃∗ vary considerably around the ferroelectric phase transition detected by polarization-electric field, as well as bipolar and unipolar electric field-induced strain hysteresis loops. In addition, the domain configuration of the ACP sample presents a more periodic stripe-like structure with narrower width and relatively more uniformity after three months aging as compared with the DCP sample, showing the importance of domain engineering in enhancing electrical performance of ferroelectric single crystals.

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通过低频交流极化提高 PMN-0.26 PT 单晶体的压电性能

在本实验中，对 0.74 Pb(Mg1/3Nb2/3)O3-0.26PbTiO3 (PMN-0.26 PT) 单晶施加了交流电极化（ACP），以探索低频（0.1 Hz）ACP 对电气性能的影响。当在 14 kV/cm 下加载 5 个周期的极化条件时，ACP 处理样品获得了 1780 pC/N 的高压电系数 d33 和 5881 的巨介电常数，与传统的直流极化 (DCP) 相比，分别提高了 42.4% 和 14.3%。通过极化-电场以及双极和单极电场诱导的应变滞后环检测到的铁电相变周围的矫顽力场、最大应变和反向压电常数 d33∗ 的值变化很大。此外，与 DCP 样品相比，ACP 样品的畴构型在三个月老化后呈现出宽度更窄、相对更均匀的周期性条纹状结构，这表明了畴工程在提高铁电单晶电性能方面的重要性。

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来源期刊

Solid State Communications 物理-物理：凝聚态物理

CiteScore

3.40

自引率

4.80%

发文量

287

审稿时长

51 days

期刊介绍： Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.