Title :
DC bias dependence of piezoelectric properties of <111> oriented Pb(Zn13/Nb23/)O3-PbTiO3 single crystals
Author :
Liu, S-F. ; Ren, Weiqiang ; Mukherjee, B.K. ; Zhang, S.J. ; Shrout, T.R.
Author_Institution :
Dept. of Phys., R. Mil. Coll. of Canada, Kingston, Ont., Canada
fDate :
28 May-1 June 2002
Abstract :
The piezoelectric d coefficients of <111> oriented (1-x)Pb(Zn13/Nb23/)O3-xPbTiO3 single crystals for x = 0.045 and x = 0.08 (PZN-4.5%PT and PZN-8%PT) have been measured as functions of DC bias field and frequency using a Zygo laser interferometer system. The d coefficients decreased as the DC bias was increased, perhaps because of domain wall clamping due to the bias field. The d coefficients were also found to decrease with the increase of frequency; this frequency dependence decreased at sufficiently large bias fields. High d15 values (∼2800 pC/N for PZN-4.5%PT and ∼3300 pC/N for PZN-8%PT) were measured, which may make these <111> oriented crystals promising candidates for high performance shear transducers.
Keywords :
dielectric polarisation; electric domain walls; ferroelectric materials; lead compounds; piezoelectric materials; piezoelectric transducers; DC bias field; DC bias frequency; Pb(ZnNb)3-PbTiO3; domain wall clamping; high performance shear transducers; oriented single crystals; piezoelectric coefficients; rhombohedral ferroelectric; Clamps; Crystalline materials; Crystals; Educational institutions; Electric fields; Frequency measurement; Niobium; Optical materials; Physics; Piezoelectric materials;
Conference_Titel :
Applications of Ferroelectrics, 2002. ISAF 2002. Proceedings of the 13th IEEE International Symposium on
Print_ISBN :
0-7803-7414-2
DOI :
10.1109/ISAF.2002.1195959
