AC-drive-enhanced relaxor characteristics and domain breakdown in ferroelectrics containing quenched impurities

Qi Tan; Dwight Viehland

doi:10.1111/j.1151-2916.1996.tb09042.x

AC-drive-enhanced relaxor characteristics and domain breakdown in ferroelectrics containing quenched impurities

Qi Tan^*, Dwight Viehland

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The dielectric constant has been measured for various compositions in the (Pb_1-3/2yLa_y) (Zr_0.65Ti_0.35)O₃ solution as a function of AC-drive amplitude. These studies have shown the presence of strong nonlinearities and enhanced relaxor characteristics with increasing AC drive. Corresponding transmission electron microscopy investigations demonstrated an enhanced breakdown of ferroelectric domains Polarization studies revealed linearity in the range of field strengths investigated, demonstrating that the dielectric nonlinearities are not due to intrinsic polarization switching, but rather to the dynamics of various domainlike states. In the disordered condition, evidence is then presented which demonstrates a mesoscale freeze-out of polar clusters.

Original language	English
Pages (from-to)	2747-2751
Number of pages	5
Journal	Journal of the American Ceramic Society
Volume	79
Issue number	10
DOIs	https://doi.org/10.1111/j.1151-2916.1996.tb09042.x
State	Published - Oct 1996
Externally published	Yes

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abstract = "The dielectric constant has been measured for various compositions in the (Pb1-3/2yLay) (Zr0.65Ti0.35)O3 solution as a function of AC-drive amplitude. These studies have shown the presence of strong nonlinearities and enhanced relaxor characteristics with increasing AC drive. Corresponding transmission electron microscopy investigations demonstrated an enhanced breakdown of ferroelectric domains Polarization studies revealed linearity in the range of field strengths investigated, demonstrating that the dielectric nonlinearities are not due to intrinsic polarization switching, but rather to the dynamics of various domainlike states. In the disordered condition, evidence is then presented which demonstrates a mesoscale freeze-out of polar clusters.",

author = "Qi Tan and Dwight Viehland",

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AU - Viehland, Dwight

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AB - The dielectric constant has been measured for various compositions in the (Pb1-3/2yLay) (Zr0.65Ti0.35)O3 solution as a function of AC-drive amplitude. These studies have shown the presence of strong nonlinearities and enhanced relaxor characteristics with increasing AC drive. Corresponding transmission electron microscopy investigations demonstrated an enhanced breakdown of ferroelectric domains Polarization studies revealed linearity in the range of field strengths investigated, demonstrating that the dielectric nonlinearities are not due to intrinsic polarization switching, but rather to the dynamics of various domainlike states. In the disordered condition, evidence is then presented which demonstrates a mesoscale freeze-out of polar clusters.

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