Title

Prediction of Ferroelectricity in BaTiO3/SrTiO3 Superlattices with Domains

Document Type

Article

Publication Date

9-10-2007

DOI

http://dx.doi.org/10.1063/1.2785121

Abstract

The phase transitions of superlattices into single- and multidomain states were studied using a mesoscale phase-field model incorporating structural inhomogeneity, micromechanics, and electrostatics. While the predictions of transition temperatures of BaTiO3/SrTiO3 superlattices into multidomains show remarkably good, quantitative agreement with ultraviolet Raman spectroscopic and variable-temperature x-ray diffraction measurements, the single-domain assumption breaks down for superlattices in which the nonferroelectric layer thickness exceeds the characteristic domain size in the ferroelectric layers.

Comments

For complete list of authors, please see article.

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