Elastic,dielectric,and piezoelectric characterization of 0.92Pb(Zn_(1/3) Nb_(2/3))O_3-0.08PbTiO_3 single crystal by Brillouin scattering

作     者：方绍熙 汤冬云 陈昭明 张华 刘玉龙 Fang Shao-Xi;Tang Dong-Yun;Chen Zhao-Ming;Zhang Hua;Liu Yu-Long

作者机构：Key Laboratory of Multi-scale Manufacturing TechnologyChongqing Institute of Green and Intelligent TechnologyChinese Academy of Sciences 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2015年第24卷第2期

页      面：432-435页

核心收录：

学科分类：070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Instrumentation Program of China(Grant No.2011YQ040136) 

主　　题：ferroelectric relaxor high-resolution Brillouin scattering acoustic phonons 

摘      要：In this paper,a complete set of elastic,piezoelectric,and dielectric constants of high-quality tetragonal poled0.92Pb（Zn1/3Nb2/3）O3-0.08PbTiO3 single crystal grown by the modified flux method is determined using high-resolution Brillouin scattering.A comparison is made between the results obtained by a hybrid method combining ultrasonic and resonant techniques and the results obtained by the Brillouin *** elastic,piezoelectric,and dielectric constants obtained by the two methods are *** Brillouin spectrum consists of one longitudinal and two transverse acoustic phonon modes,and the variations of the Brillouin shifts,the full widths at half maximum,and the scattering intensities of these modes with scattering angle 9 are *** particular,the transverse acoustic phonon mode at the lowfrequency becomes markedly soft from 28.2 GHz to 18.4 GHz and broadens gradually with the increase of θ,while its intensity decreases gradually as compared with that of the original *** possible origins of the results are discussed.