Electrostrictive effect in Pb(Mg1/3Nb2/3)O3-xPbTiO3 crystals



Publication Details

Li, F., Jin, L., Xu, Z., Wang, D. & Zhang, S. (2013). Electrostrictive effect in Pb(Mg1/3Nb2/3)O3-xPbTiO3 crystals. Applied Physics Letters, 102 (15), 152910-1-152910-5.


The electrostrictive effect was investigated in Pb(Mg1/3Nb 2/3)O3-xPbTiO3 (PMN-xPT) relaxor ferroelectric crystal, a representative high performance piezoelectric material, with respect to orientation, temperature, and composition. The electrostrictive coefficients Q 11 C, Q 12 C, and Q 44 C of PMN-xPT (x 0.25-0.37) crystals were found to be on the order of 0.055, - 0.024, and 0.020 m4/C2, respectively. The maximum and minimum Q 33 were found to be along 100 and 111 directions, being about 0.055 and 0.014 m4/C2, respectively, showing a strong anisotropic behavior, which is inherently associated with the oxygen-octahedra structure. In contrast to piezoelectric and dielectric responses, the electrostrictive coefficients Q are found to be insensitive to the ferroelectric phase transition, no matter it is induced by the temperature or composition. 2013 AIP Publishing LLC.

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