Structural response of BaTiO3 CaTiO3 superlattice to applied electric fields

Ji Young Jo, Rebecca J. Sichel, Ho Nyung Lee, Eric Dufresne, Paul G. Evans

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The structural response of a ferroelectric BaTiO3/dielectric CaTiO3 superlattice to the bipolar applied electric field was studied using time-resolved x-ray microdiffraction. Structural results were compared to the polarization-electric field hysteresis curve obtained from electrical measurements. The superlattice x-ray reflections were found to have a broad distribution of intensity in reciprocal space under applied electric fields exceeding the nominal coercive electric field. The broad distribution of the lattice constant at high electric fields is compared with a model in which the constituent layers of the superlattice have different coercive fields for the polarization switching.

Original languageEnglish
Title of host publicationMultiferroic and Ferroelectric Materials
Pages1-7
Number of pages7
StatePublished - 2010
Event2009 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 30 2009Dec 4 2009

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1199
ISSN (Print)0272-9172

Conference

Conference2009 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA
Period11/30/0912/4/09

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