High quality crystal growth and characterization of ferroelectric <inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow><mtext>Ba</mtext></mrow><mrow><mn>0</mn><mo class="MathClass-punc">.</mo><mn>7</mn><mn>7</mn></mrow></msub></math></inline-formula><inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow><mtext>Ca</mtext></mrow><mrow><mn>0</mn><mo class="MathClass-punc">.</mo><mn>2</mn><mn>3</mn></mrow></msub></math></inline-formula>TiO<sub>3</sub> single crystal<xref ref-type="fn" rid="S2010135X23500054FN001" />

Lei Liu; Fangyi Yin; Guiyuan Zhao; Limei Zheng; Xiuwei Fu; Zhitai Jia; Xutang Tao

doi:10.1142/S2010135X23500054

Journal of Advanced Dielectrics, Volume. 13, Issue 2, 2350005(2023)

High quality crystal growth and characterization of ferroelectric ${Ba}_{0.77}$ ${Ca}_{0.23}$ TiO₃ single crystal

Lei Liu¹, Fangyi Yin¹, Guiyuan Zhao¹, Limei Zheng^1,2、aff***, Xiuwei Fu^{1、aff******}, Zhitai Jia^1,3, and Xutang Tao¹

Author Affiliations

¹State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250100, P. R. China

²School of Physics, Shandong University, Jinan, Shandong 250100, P. R. China

³Shandong Research Institute of Industrial Technology, Jinan, Shandong 250100, P. R. China

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$B_{0.77}$ ${Ca}_{0.23}$ TiO₃ (BCT) single crystal has been widely studied as a promising lead-free ferroelectric material. In this work, high-quality BCT crystal was successfully grown by the Czochralski (CZ) method. The as-grown crystal is crack-free and shows black coloration. It possesses a high dielectric stability over a wide temperature range, while the dielectric loss is rather small below 90 $^{\circ}$ C. Furthermore, it possesses excellent ferroelectric properties with residual polarization strength ( $P_{r}$ ) and coercive field ( $E$ $_{c}$ ) of 17.93 $μ$ C/cm² and 8.47 kV/cm, respectively. Besides, BCT crystal shows large electromechanical coupling factors, with $k$ $_{t}$ , $k_{31}$ , $k_{33}$ and $k_{15}$ of 0.535, 0.254, 0.714 and 0.721, respectively. The piezoelectric coefficients $d_{31}$ , $d_{33}$ and $d_{15}$ are measured to be − 36.5, 130 and 246 pC/N, respectively.

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Lei Liu, Fangyi Yin, Guiyuan Zhao, Limei Zheng, Xiuwei Fu, Zhitai Jia, Xutang Tao. High quality crystal growth and characterization of ferroelectric ${Ba}_{0.77}$ ${Ca}_{0.23}$ TiO₃ single crystal[J]. Journal of Advanced Dielectrics, 2023, 13(2): 2350005

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Paper Information

Category: Research Articles

Received: Dec. 3, 2022

Accepted: Feb. 5, 2023

Published Online: Jun. 16, 2023

The Author Email: Zheng Limei (zhenglm@sdu.edu.cn), Fu Xiuwei (fxw@sdu.edu.cn)

DOI:10.1142/S2010135X23500054

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology