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- W1978698753 abstract "The nonlinear behavior of the dielectric and piezoelectric resopnse of <001> oriented Pb(Zn<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>-xPbTiO<sub>3</sub> (PZN-PT) single crystals for x=4.5% and x=8% have been investigated as a function of AC electric fields and DC bias field. At relatively low applied fields, the polarization and strain of PZN-PT single crystals poled along the <001> direction show little hysteresis and have a linear dependence on the applied field, which is a consequence of engineered domain stability. Hence, the dielectric and piezoelectric coefficients of the material do not exhibit any field dependence. However, when the applied electric field exceeds a threshold value, the strain and dielectric responses become nonlinear. The dielectric and piezoelectric constants are a function of the applied field, and hysteresis loops are observed. The results suggest that the observed nonlinear behavior in the PZN-PT single crystals is caused by domain motion/switching in response to the large AC fields. Applying a positive DC bias can effectively stabilize the domain configuration in the crystals and enhance linear responses. The threshold field, at the onset of nonlinearity, is found to have a linear relation with DC bias field in the field range investigated." @default.
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- W1978698753 date "2003-08-12" @default.
- W1978698753 modified "2023-09-23" @default.
- W1978698753 title "Nonlinear behavior of piezoelectric lead zinc niobate-lead titanate single crystals under AC electric fields" @default.
- W1978698753 doi "https://doi.org/10.1117/12.484694" @default.
- W1978698753 hasPublicationYear "2003" @default.
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