Title :
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
Abstract :
The orientation dependence of coupling between Lamb and shear horizontal (SH) waves in [001]c and [011]c poled (1-x)Pb(Mg1/3Nb2/3)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;
Conference_Titel :
Applications of Ferroelectrics, 2009. ISAF 2009. 18th IEEE International Symposium on the
Conference_Location :
Xian
Print_ISBN :
978-1-4244-4970-5
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2009.5307609
