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Title: Polarization responses in lead magnesium niobate based relaxor ferroelectrics

Abstract

Changes in the electrostrictive coefficients Q{sub ij}, especially the volumetric coefficient, with temperature and bias field provides important information regarding the nature of the polarization in lead magnesium niobate based relaxor ferroelectrics. We show that the polarization response at temperatures near the dielectric constant maximum is mainly through the polar-vector reorientation of the nanopolar regions, as suggested by the polar glass model. As the temperature is lowered through the freezing transition, the polarization response is governed by the phase switching and intrinsic contributions rather than by the domain wall motions found in normal ferroelectrics. {copyright} {ital 1997 American Institute of Physics.}

Authors:
;  [1]
  1. Materials Research Laboratory and Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
Publication Date:
OSTI Identifier:
542512
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 71; Journal Issue: 12; Other Information: PBD: Sep 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; NIOBATES; POLARIZATION; CERAMICS; PERMITTIVITY; FERROELECTRIC MATERIALS; LEAD COMPOUNDS; MAGNESIUM COMPOUNDS; PHASE TRANSFORMATIONS; RELAXATION; TEMPERATURE DEPENDENCE

Citation Formats

Zhang, Q M, and Zhao, J. Polarization responses in lead magnesium niobate based relaxor ferroelectrics. United States: N. p., 1997. Web. doi:10.1063/1.119784.
Zhang, Q M, & Zhao, J. Polarization responses in lead magnesium niobate based relaxor ferroelectrics. United States. doi:10.1063/1.119784.
Zhang, Q M, and Zhao, J. Mon . "Polarization responses in lead magnesium niobate based relaxor ferroelectrics". United States. doi:10.1063/1.119784.
@article{osti_542512,
title = {Polarization responses in lead magnesium niobate based relaxor ferroelectrics},
author = {Zhang, Q M and Zhao, J},
abstractNote = {Changes in the electrostrictive coefficients Q{sub ij}, especially the volumetric coefficient, with temperature and bias field provides important information regarding the nature of the polarization in lead magnesium niobate based relaxor ferroelectrics. We show that the polarization response at temperatures near the dielectric constant maximum is mainly through the polar-vector reorientation of the nanopolar regions, as suggested by the polar glass model. As the temperature is lowered through the freezing transition, the polarization response is governed by the phase switching and intrinsic contributions rather than by the domain wall motions found in normal ferroelectrics. {copyright} {ital 1997 American Institute of Physics.}},
doi = {10.1063/1.119784},
journal = {Applied Physics Letters},
number = 12,
volume = 71,
place = {United States},
year = {1997},
month = {9}
}