Piezoelectric Ca3NbGa3Si2O14 crystal: crystal growth, piezoelectric and acoustic properties

被引：0

作者：

Dmitry Roshchupkin

Luc Ortega

Olga Plotitcyna

Alexei Erko

Ivo Zizak

Simone Vadilonga

Dmitry Irzhak

Evgenii Emelin

Oleg Buzanov

Wolfram Leitenberger

机构：

[1] Russian Academy of Sciences,Institute of Microelectronics Technology and High

[2] National University of Science and Technology MISiS,Purity Materials

[3] Univ. Paris-Sud,Laboratoire de Physique des Solides

[4] CNRS,Institute for Nanometre Optics and Technology

[5] UMR 8502,undefined

[6] Helmholtz-Zentrum Berlin für Materialien und Energie GmbH,undefined

[7] FOMOS Materials Co.,undefined

[8] Universität Potsdam Institut für Physik,undefined

来源：

Applied Physics A | 2016年 / 122卷

关键词：

Surface Acoustic Wave; Interplanar Spacing; Bragg Peak; Synchrotron Radiation Source; Applied External Electric Field;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Ca3NbGa3Si2O14 (CNGS), a five-component crystal of lanthanum-gallium silicate group, was grown by the Czochralski method. The parameters of the elementary unit cell of the crystal were measured by powder diffraction. The independent piezoelectric strain coefficients d11\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$d{}_{11}$$\end{document} and d14\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$d_{14}$$\end{document} were determined by the triple-axis X-ray diffraction in the Bragg and Laue geometries. Excitation and propagation of surface acoustic waves (SAW) were studied by high-resolution X-ray diffraction at BESSY II synchrotron radiation source. The velocity of SAW propagation and power flow angles in the Y\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$Y$$\end{document}-, X\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$X$$\end{document}- and yxl/+36∘\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$yxl/{+}36^\circ$$\end{document}-cuts of the CNGS crystal were determined from the analysis of the diffraction spectra. The CNGS crystal was found practically isotropic by its acoustic properties.

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