Guided Wave Propagation in a Gold Electrode Film on a Pb（Mg1/aNb2/a）Oa-33%PbTiO3 Ferroelectric Single Crystal Substrate

Dispersion relations of Love mode acoustic guided 0.33 PT） single crystal with a gold electrode film waves propagation in Pb（Mg1/3 Nb2/3 ） 03-33%PbTiO3 （PMN- are calculated. There is no cross coupling among Love wave modes, which is conducive to eliminating the cross interference between modes. The...

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Published in中国物理快报：英文版 no. 10; pp. 74 - 77
Main Author 黄乃兴 吕天全 张锐 王玉玲 曹文武
Format Journal Article
LanguageEnglish
Published 2014
Subjects
工作频率
波传播
电极膜
色散关系
衬底
金
钛酸铅
铁电单晶
Online AccessGet full text
ISSN0256-307X
1741-3540

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Summary:Dispersion relations of Love mode acoustic guided 0.33 PT） single crystal with a gold electrode film waves propagation in Pb（Mg1/3 Nb2/3 ） 03-33%PbTiO3 （PMN- are calculated. There is no cross coupling among Love wave modes, which is conducive to eliminating the cross interference between modes. The general formula is derived to precisely measure the thickness of the electrode. More acoustic energy would be concentrated inside the electrode with the increase of film thickness for a given frequency. Compared with the PZT-5 ceramic, [001]c poled PMN- 33%PT single crystal has a slower attenuation of the amplitude of the acoustic guided wave. Therefore, single crystal is extremely suitable for making low loss acoustic wave devices with a high operating frequency.
Bibliography:Dispersion relations of Love mode acoustic guided 0.33 PT） single crystal with a gold electrode film waves propagation in Pb（Mg1/3 Nb2/3 ） 03-33%PbTiO3 （PMN- are calculated. There is no cross coupling among Love wave modes, which is conducive to eliminating the cross interference between modes. The general formula is derived to precisely measure the thickness of the electrode. More acoustic energy would be concentrated inside the electrode with the increase of film thickness for a given frequency. Compared with the PZT-5 ceramic, [001]c poled PMN- 33%PT single crystal has a slower attenuation of the amplitude of the acoustic guided wave. Therefore, single crystal is extremely suitable for making low loss acoustic wave devices with a high operating frequency.
HUANG Nai-Xing, LU Tian-Quan, ZHANG Rui WANG Yu-Ling, CAO Wen-WH（ 1 Condensed Matter Science and Technology Institute, Department of Physics, Harbin Institute of Technology, Harbin 150080 2Department of Physics, College of Electronic Science, Northeast Petroleum University, Daqing 163318 3Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA）
11-1959/O4
ISSN:0256-307X
1741-3540