Structural Response of BaTiO3/CaTiO3 Superlattice to Applied Electric Fields
Journal Article
·
· Materials Research Society Symposium Proceedings
OSTI ID:992564
- University of Wisconsin, Madison
- ORNL
- Argonne National Laboratory (ANL)
The structural response of a ferroelectric BaTiO{sub 3}/dielectric CaTiO{sub 3} 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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 992564
- Journal Information:
- Materials Research Society Symposium Proceedings, Journal Name: Materials Research Society Symposium Proceedings Vol. 1199; ISSN 0272-9172; ISSN MRSPDH
- Country of Publication:
- United States
- Language:
- English
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