What question did this study set out to answer?

Synthesize macroscopic experimental evidence across electrical, mechanical, thermal, and optical domains to validate the compositional heterogeneity model of relaxor ferroelectrics.

December 1, 1987Ferroelectrics

Relaxor ferroelectrics

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Authors

LCL. E. CrossUniversity of Geneva

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Implication

Literature review demonstrates compositional heterogeneity and dynamic polar microregions in relaxor ferroelectrics, highlighting discrepancies between local and global crystal symmetries.

Key Points

Synthesize macroscopic experimental evidence across electrical, mechanical, thermal, and optical domains to validate the compositional heterogeneity model of relaxor ferroelectrics.
Reviewed macroscopic electrical, mechanical, thermal, and optical characterization studies across relaxor systems, including lead scandium tantate, lead magnesium niobate, and barium strontium niobate.
Analyzed electrostrictive spontaneous strain, quadratic electro-optic responses, field-induced electrostriction, and aging measurements across varying temperatures.
Large root-mean-square polarization values persist across a wide temperature window above the dielectric permittivity maximum due to intrinsic chemical heterogeneity.
Field-induced electrostriction confirms that polar microregions existing above the permittivity maximum exist in dynamic disorder rather than forming macroscopic static domains.
Aging behavior and poling dynamics confirm that local and global crystal symmetries differ significantly within heterogeneous relaxor compositions.

Cite This Study

L. E. Cross (1987) studied this question.

synapsesocial.com/papers/69dea37c210a0977fce94fd6 https://doi.org/10.1080/00150198708016945

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Implication

Literature review demonstrates compositional heterogeneity and dynamic polar microregions in relaxor ferroelectrics, highlighting discrepancies between local and global crystal symmetries.

Relaxor ferroelectrics

Discussion

Member takes

Implication

Key Points

Cite This Study

Relaxor ferroelectrics

Discussion

Member takes

Implication

Key Points

Cite This Study

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