BANDGAPS IN ONE-DIMENSIONAL PHONONIC CRYSTAL PLATE WITH A FERROELECTRIC INVERSION LAYER
We investigate theoretically the band structures of one-dimensional phononic crystal plates with a ferroelectric inversion layer.The phononic crystal structure in the form of rectangular-like periodic grooves made on both surfaces of LiNbO3 crystal plate.The effects of the inversion layer on the dispersion curves are demonstrated using the analysis of the band structures which can be calculated by the finite element method.It is found that the width and position of Lamb wave shift prominently with variation of thickness of the inversion layer.The results obtained may provide theoretical guidance for the design of high-performance acoustic devices made of phononic crystal.
Piezoelectric phononic crystal Lamb wave Ferroelectric inversion FEM
Guang-ying Yang Ming-hua Zhang Jia Lou Meng-kai Lu Ji Wang Jian-ke Du
College of Civil Engineering and Architecture, Jiaxing University, Jiaxing, P.R.China, 314001;School School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, P.R.China, 315211
国际会议
石家庄
英文
301-305
2019-11-01（万方平台首次上网日期，不代表论文的发表时间）