Prediction of Ferroelectricity in BaTiO3/SrTiO3 Superlattices with Domains
Document Type
Article
Publication Date
9-10-2007
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.
Publication Information
Tenne, Dmitri A.. (2007). "Prediction of Ferroelectricity in BaTiO3/SrTiO3 Superlattices with Domains". Applied Physics Letters, 91(11), 112914-1 - 112914-3. http://dx.doi.org/10.1063/1.2785121
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