Orientation dependence of coupling between Lamb and shear horizontal waves in (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 single crystal plates

Author

Chen, Chuanwen ; Zhang, Rui ; Cao, Wenwu

Author_Institution

Dept. of Phys., Northeast Forestry Univ., Harbin, China

fYear

2009

fDate

23-27 Aug. 2009

Firstpage

1

Lastpage

4

Abstract

The orientation dependence of coupling between Lamb and shear horizontal (SH) waves in [001]_c and [011]_c poled (1-x)Pb(Mg_1/3Nb_2/3)O₃-xPbTiO₃ (PMN-xPT) single crystal plates has been studied theoretically. For a [001]_c polarized PMN-PT crystals plate there is no coupling between Lamb and SH waves when thetas = npi/4 (n = 0,1, 2, ...),and the strongest coupling occurs when thetas = (2n +1)pi/8 . For a [011]_c polarized PMN-PT crystal plate, the decoupling and strongest coupling happen when thetas = npi/2 and thetas = (2n +1)pi/4 , respectively. Guided wave propagation for coupled and decoupled cases and for symmetric and antisymmetric modes are calculated explicitly. The results are useful for the design of guided wave devices using PMN-xPT single crystals.

Keywords

elastic waves; lead compounds; piezoelectric materials; surface acoustic waves; Lamb waves; PMN-PbTiO₃; antisymmetric modes; guided wave devices; guided wave propagation; orientation dependence; piezoelectric material; polarized PMN-PT crystal plate; shear horizontal waves; symmetric modes; Anisotropic magnetoresistance; Crystalline materials; Crystals; Forestry; Material properties; Physics; Piezoelectric materials; Polarization; Sensor phenomena and characterization; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2009. ISAF 2009. 18th IEEE International Symposium on the

Conference_Location

Xian

ISSN

1099-4734

Print_ISBN

978-1-4244-4970-5

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2009.5307609

Filename

5307609