https://scholars.lib.ntu.edu.tw/handle/123456789/79087
標題: | Bleustein-Gulyaev-Shimizu Surface Acoustic Waves in Two-Dimensional Piezoelectric Phononic Crystals | 作者: | Hsu, Jin-Chen Wu, Tsung-Tsong |
公開日期: | 六月-2006 | 出版社: | Taipei:National Taiwan University Dept Mech Engn | 卷: | vol. 53 | 期: | no. 6 | 起(迄)頁: | - | 來源出版物: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control | 摘要: | In this paper, we present a study on the existence of Bleustein-Gulyaev-Shimizu piezoelectric surface acoustic waves in a two-dimensional piezoelectric phononic crystal (zinc oxide, ZnO, and cadmium-sulfide, CdS) using the plane wave expansion method. In the configuration of ZnO(100)/CdS(100) phononic crystal, the calculated results show that this type of surface waves has higher acoustic wave velocities, high electromechanical coupling coefficients, and larger band gap width than those of the Rayleigh surface waves and pseudosurface waves. In addition, we find that the folded modes of the Bleustein-Gulyaev-Shimizu surface waves have higher coupling coefficients. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/200611150121625 | 其他識別: | 246246/200611150121625 |
顯示於: | 應用力學研究所 |
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