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

Fei Li, Li Jin, Zhuo Xu, Dawei Wang, Shujun Zhang

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Abstract

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.

Original languageEnglish (US)
Article number152910
JournalApplied Physics Letters
Volume102
Issue number15
DOIs
StatePublished - Apr 15 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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