TY - JOUR
T1 - Numerical calculation of SAW propagation properties at the x-cut of ferroelectric PMN-33%PT single crystals
AU - Wei, Zhang
AU - Xiu-Ming, Li
AU - Rui, Zhang
AU - Nai-Xing, Huang
AU - Wen-Wu, Cao
PY - 2009
Y1 - 2009
N2 - Surface acoustic wave (SAW) properties at the x-cut of relaxor-based 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3 (PMN-33%PT) ferroelectric single crystals are analyzed theoretically when poled along the [001]c cubic direction. It can be found that PMN-33%PT single crystal is a kind of material with a low phase velocity and high electromechanical coupling coefficient, and the single crystal possesses some cuts with zero power flow angle. The results are based on the material parameters at room temperature. The conclusions provide device designers with a few ideal cuts of PMN-33%PT single crystals. Moreover, choosing an optimal cut will dramatically improve the performance of SAW devices, and corresponding results for crystal systems working at other temperatures could also be figured out by employing the method.
AB - Surface acoustic wave (SAW) properties at the x-cut of relaxor-based 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3 (PMN-33%PT) ferroelectric single crystals are analyzed theoretically when poled along the [001]c cubic direction. It can be found that PMN-33%PT single crystal is a kind of material with a low phase velocity and high electromechanical coupling coefficient, and the single crystal possesses some cuts with zero power flow angle. The results are based on the material parameters at room temperature. The conclusions provide device designers with a few ideal cuts of PMN-33%PT single crystals. Moreover, choosing an optimal cut will dramatically improve the performance of SAW devices, and corresponding results for crystal systems working at other temperatures could also be figured out by employing the method.
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U2 - 10.1088/0256-307X/26/6/064301
DO - 10.1088/0256-307X/26/6/064301
M3 - Article
AN - SCOPUS:68549122695
SN - 0256-307X
VL - 26
JO - Chinese Physics Letters
JF - Chinese Physics Letters
IS - 6
M1 - 064301
ER -