Title :
The electroacoustic waves and its symmetry in anti-parallel polarising multilayer structure
Author :
Zhiming, Wu ; Daben, Yang ; Xingjiao, Li
Author_Institution :
Dept. of Mater. Sci. & Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The dispersion characteristics of the ferroelectric domain layer waves (FDLW) in the 180° domain structure of PZT-5 materials with finite layers have been discussed in the paper. Comparing with some 180° domain structure, a new FDLW mode with asymmetric vibration is found. Experimental results are agreement with the theoretical ones. In the other, it is shown theoretically that the electromechanical coupling factor of the FDLW mode in the 180° domain sandwich structure increases rapidly as hk decreases at hk≪1
Keywords :
acoustoelectric effects; dielectric polarisation; elastic waves; electric domains; electromechanical effects; ferroelectric materials; lead compounds; piezoceramics; vibrational modes; 180° domain structure; PZT; PZT-5 materials; PbZrO3TiO3; anti-parallel polarising multilayer structure; dispersion characteristics; electroacoustic waves; electromechanical coupling factor; ferroelectric domain layer waves; Ceramics; Couplings; Ferroelectric materials; Materials science and technology; Nonhomogeneous media; Paper technology; Sandwich structures; Solids; Superlattices; Vibrations;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.515213
