Co3+ 取代的 BiFeO3 外延薄膜中的纳秒电脉冲诱导超快压电响应

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2024-11-22 DOI:10.1016/j.cap.2024.11.012

Sanjith Unithrattil , Taewon Min , Gopinathan Anoop , Jun Young Lee , Tae Yeon kim , Shibnath Samanta , Yubo Qi , Jiahao Zhang , Seung Hyun Hwang , Hyeon Jun Lee , Kun Guo , Su Yong Lee , Yasuhiko Imai , Osami Sakata , Keisuke Shimizu , Kei Shigematsu , Hajime Hojo , Kui Yao , Masaki Azuma , Jaekwang Lee , Ji Young Jo

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引用次数: 0

摘要

了解铁电材料的超快动态对于推动下一代高速电子和光子器件的发展至关重要。本文研究了 x = 0.15 的钴取代 BiFeO3（BiFe1-xCoxO3）的超快压电响应，它由单斜 MC 型相和 MA 型相的各向异性相界组成。在脉冲宽度为 70 ns 和 100 ns 的外加电场下，使用时间分辨 X 射线微衍射技术监测了 (001) 取向 BiFe0.85Co0.15O3 (BFCO) 外延薄膜的实时压电响应。在 1.3 MV/cm 的电场和 100 ns 的脉冲宽度下，BFCO 薄膜沿 [001] 方向产生了约 0.53 % 的高压电应变，具有巨大的 c/a 比 (∼1.26)，压电系数 (d33) 为 40 pm/V。这一发现是为先进技术应用中的超快操作开发高性能无铅压电材料迈出的重要一步。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Nanosecond electric pulse-induced ultrafast piezoelectric responses in Co3+ substituted BiFeO3 epitaxial thin films

查看原文本刊更多论文

Nanosecond electric pulse-induced ultrafast piezoelectric responses in Co3+ substituted BiFeO3 epitaxial thin films

Understanding the ultra-fast dynamics of ferroelectric materials is essential for advancing the development of next-generation high speed electronic and photonic devices. Here, the ultrafast piezoelectric response of cobalt-substituted BiFeO₃ (BiFe_1-xCo_xO₃) with x = 0.15, consisting of morphotropic phase boundary of monoclinic M_C and M_A –type phases is investigated. The real-time piezoelectric response in (001)-oriented BiFe_0.85Co_0.15O₃ (BFCO) epitaxial thin film was monitored using the time-resolved X-ray microdiffraction technique under an applied electric field with pulse widths 70 ns and 100 ns. The BFCO thin film yielded a high piezoelectric strain of approximately 0.53 % along [001] direction, with a giant c/a ratio (∼1.26) at an electric field of 1.3 MV/cm and a pulse width of 100 ns, with a piezoelectric coefficient (

d_{33}

) of 40 pm/V. This finding is an important step towards the development of a high performance lead-free piezoelectric material for ultrafast operations in advanced technological applications.

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.