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

Tan Qi*, Dwight Viehland

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

The dielectric constant has been measured for various compositions in the (Pb1-3/2y Lay)(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 polarization switching, but rather to the dynamics of various domain-like states. In the disordered condition, evidence is then presented which demonstrates a mesoscale freeze out of polar clusters.

Original languageEnglish
Pages975-978
Number of pages4
StatePublished - 1996
Externally publishedYes
EventProceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) - East Brunswick, NJ, USA
Duration: 18 Aug 199621 Aug 1996

Conference

ConferenceProceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2)
CityEast Brunswick, NJ, USA
Period18/08/9621/08/96

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