Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO3 single crystal by Brillouin scattering

doi:10.1088/1674-1056/21/6/067801

中国物理B ›› 2012, Vol. 21 ›› Issue (6): 67801-067801.doi: 10.1088/1674-1056/21/6/067801

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO₃ single crystal by Brillouin scattering

何小亢^a, 曾立波^a, 吴琼水^a, 张丽艳^b, 朱恪^b, 刘玉龙^b

a. Electronic Information School, Wuhan University, Wuhan 430072, China;
b. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

收稿日期:2012-01-16 修回日期:2012-02-21 出版日期:2012-05-01 发布日期:2012-05-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874236 and 60808010).

Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO₃ single crystal by Brillouin scattering

He Xiao-Kang(何小亢)^a), Zeng Li-Bo(曾立波)^a), Wu Qiong-Shui(吴琼水)^a), Zhang Li-Yan(张丽艳)^b)^†, Zhu Ke(朱恪)^b), and Liu Yu-Long(刘玉龙)^b)

a. Electronic Information School, Wuhan University, Wuhan 430072, China;
b. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Received:2012-01-16 Revised:2012-02-21 Online:2012-05-01 Published:2012-05-01
Contact: Zhang Li-Yan E-mail:zhangly@aphy.iphy.ac.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874236 and 60808010).

摘要/Abstract

摘要： From the sound velocity measured using the Brillouin scattering technique, the elastic, piezoelectric, and dielectric constants of a high-quality monodomain tetragonal Rh:BaTiO₃ single crystal are determined at room temperature. The elastic constants are in fairly good agreement with those of the BaTiO₃ single crystal, measured previously by Brillouin scattering and the low-frequency equivalent circuit methods. However, their electromechanical properties are significantly different. Based on the sound propagation equations and these results, the directional dependence of the compressional modulus and the shear modulus of Rh:BaTiO₃ in the (010) plane is investigated. Some properties of sound propagation and electromechanical coupling in the crystal are discussed.

关键词: Brillouin scattering, elastic and piezoelectric constants, Rh:BaTiO₃ single crystal

Abstract: From the sound velocity measured using the Brillouin scattering technique, the elastic, piezoelectric, and dielectric constants of a high-quality monodomain tetragonal Rh:BaTiO₃ single crystal are determined at room temperature. The elastic constants are in fairly good agreement with those of the BaTiO₃ single crystal, measured previously by Brillouin scattering and the low-frequency equivalent circuit methods. However, their electromechanical properties are significantly different. Based on the sound propagation equations and these results, the directional dependence of the compressional modulus and the shear modulus of Rh:BaTiO₃ in the (010) plane is investigated. Some properties of sound propagation and electromechanical coupling in the crystal are discussed.

Key words: Brillouin scattering, elastic and piezoelectric constants, Rh:BaTiO₃ single crystal

中图分类号: (Brillouin and Rayleigh scattering; other light scattering)

78.35.+c

何小亢, 曾立波, 吴琼水, 张丽艳, 朱恪, 刘玉龙. Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO₃ single crystal by Brillouin scattering[J]. 中国物理B, 2012, 21(6): 67801-067801.

He Xiao-Kang(何小亢), Zeng Li-Bo(曾立波), Wu Qiong-Shui(吴琼水), Zhang Li-Yan(张丽艳), Zhu Ke(朱恪), and Liu Yu-Long(刘玉龙) . Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO₃ single crystal by Brillouin scattering[J]. Chin. Phys. B, 2012, 21(6): 67801-067801.

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Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO₃ single crystal by Brillouin scattering

Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO₃ single crystal by Brillouin scattering

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