Piezoelectric activity of relaxor- PbTiO3 based single crystals and polycrystalline ceramics at cryogenic temperatures: Intrinsic and extrinsic contributions

Fei Li, Shujun Zhang, Zhuo Xu, Xiaoyong Wei, Jun Luo, Thomas R. Shrout

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Abstract

The piezoelectric activity in [001] poled Pb (In1/2 Nb 1/2) O3 -Pb (Mg1/3 Nb2/3) O 3 - PbTiO3 crystals was investigated as a function of composition and temperature. The level of intrinsic and/or extrinsic contribution to the total piezoelectric activity was analyzed using Rayleigh method. The results revealed that though 95% of the observed piezoelectric activity in rhombohedral crystals was intrinsic (lattice), the properties decreased significantly with decreasing temperature. At -150 °C, the piezoelectric response decreased by 40%-55% for the compositions close to a morphotropic phase boundary (rhombohedral-monoclinic or monoclinic-tetragonal), while decreasing only 20%-30% for the compositions in the rhombohedral region. The piezoelectric properties of Pb (Mg1/3 Nb2/3) O 3 - PbTiO3 polycrystalline ceramics were found to decrease by 75%, showing both intrinsic and extrinsic contributions play important role in the reduction in piezoelectricity at cryogenic temperatures for ceramics.

Original languageEnglish (US)
Article number192903
JournalApplied Physics Letters
Volume96
Issue number19
DOIs
StatePublished - Jun 7 2010

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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