DOI: 10.1063/1.3153512. Strain-coupled ferroelectric polarization in BaTiO3

Strain-coupled ferroelectric polarization in BaTiO3–CaTiO3 superlattices

10.1063/1.3153512

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We report on growth and ferroelectric (FE) properties of superlattices (SLs) composed of the FE BaTiO3 and the paraelectric CaTiO3. Previous theories have predicted that the polarization in (BaTiO3)n/(CaTiO3)n SLs increases as the sublayer thickness (n) increases when the same strain state is maintained. However, our BaTiO3/CaTiO3 SLs show a varying lattice-strain state and systematic reduction in polarization with increasing n while coherently strained SLs with n=1 and 2 show a FE polarization of ca. 8.5 μC/cm2. We suggest that the strain coupling plays a more important role in FE properties than the electrostatic interlayer coupling based on constant dielectric permittivities.

Bibliography

Seo, S. S. A., & Lee, H. N. (2009). Strain-coupled ferroelectric polarization in BaTiO3âCaTiO3 superlattices. Applied Physics Letters, 94(23).

Authors 2

Sung Seok A. Seo (first)
Ho Nyung Lee (additional)

References 30 Referenced 24

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Dates

Type	When
Created	16 years, 2 months ago (June 11, 2009, 6:13 p.m.)
Deposited	2 years, 2 months ago (July 2, 2023, 6:06 p.m.)
Indexed	1 month, 1 week ago (July 30, 2025, 6:53 a.m.)
Issued	16 years, 2 months ago (June 8, 2009)
Published	16 years, 2 months ago (June 8, 2009)
Published Online	16 years, 2 months ago (June 11, 2009)
Published Print	16 years, 2 months ago (June 8, 2009)

Funders 0

None

BibTeX

@article{Seo_2009, title={Strain-coupled ferroelectric polarization in BaTiO3–CaTiO3 superlattices}, volume={94}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.3153512}, DOI={10.1063/1.3153512}, number={23}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Seo, Sung Seok A. and Lee, Ho Nyung}, year={2009}, month=jun }

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