Growth and piezoelectric properties of Ca3Nb(Al0.5Ga0.5)3Si2O14crystals with langasite structure

doi:10.1016/j.jcrysgro.2016.12.052

	Growth and piezoelectric properties of Ca3Nb(Al0.5Ga0.5)3Si2O14crystals with langasite structure
	Xiong, Kainan; Zheng, Yanqing; Tu, Xiaoniu; Jiang, Bohan; Cao, Shuoliang; Shi, Erwei
刊名	Journal of Crystal Growth
	2017
卷号	468 页码:416-419
ISSN号	00220248
DOI	10.1016/j.jcrysgro.2016.12.052
英文摘要	Piezoelectric crystals Ca3Nb(Al0.5Ga0.5)3Si2O14(CNAGS) with langasite structure have been successfully grown by Czochralski method. In this work, the crystal structure, quality, chemical composition, piezoelectric properties, electric resistivity and optical properties of the as-grown crystals were characterized. The full width at half-maximum (FWHM) of the rocking curve of CNAGS was found to be 23″. The chemical compositions of CNAGS crystals are very close to that of initial compositions. At room temperature, the piezoelectric coefficients d11and d14of CNAGS crystals are 4.12 pC/N and −5.03 pC/N, and the electromechanical coupling coefficients k12and k26are also determined as 11.6% and 18.3%, respectively. The electric resistivity of as-growth crystal was found to be on the order of 2×108 Ω cm at 500 °C and 1×106 Ω cm at 800 °C. And the transmittances of CNAGS crystals were found to be over 80% in the wavelength range of 700–2700 nm. © 2016
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25513]
专题	中国科学院上海硅酸盐研究所
作者单位	Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China
推荐引用方式 GB/T 7714	Xiong, Kainan,Zheng, Yanqing,Tu, Xiaoniu,et al. Growth and piezoelectric properties of Ca3Nb(Al0.5Ga0.5)3Si2O14crystals with langasite structure[J]. Journal of Crystal Growth,2017,468:416-419.
APA	Xiong, Kainan,Zheng, Yanqing,Tu, Xiaoniu,Jiang, Bohan,Cao, Shuoliang,&Shi, Erwei.(2017).Growth and piezoelectric properties of Ca3Nb(Al0.5Ga0.5)3Si2O14crystals with langasite structure.Journal of Crystal Growth,468,416-419.
MLA	Xiong, Kainan,et al."Growth and piezoelectric properties of Ca3Nb(Al0.5Ga0.5)3Si2O14crystals with langasite structure".Journal of Crystal Growth 468(2017):416-419.