Ferroelectric distortion in SrTiO3 thin films on Si(001) by x-ray absorption fine structure spectroscopy: Experiment and first-principles calculations

J. C. Woicik, E. L. Shirley, C. S. Hellberg, K. E. Andersen, S. Sambasivan, D. A. Fischer, B. D. Chapman, E. A. Stern, P. Ryan, D. L. Ederer, H. Li

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Abstract

Ti K and Ti L2,3 x-ray absorption fine-structure near-edge spectra of SrTiO3 thin films grown coherently on Si(001) reveal the presence of a ferroelectric (FE) distortion at room temperature. This unique phase is a direct consequence of the compressive biaxial strain achieved by coherent epitaxial growth.

Original languageEnglish
Article number140103
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number14
DOIs
StatePublished - 24 Apr 2007
Externally publishedYes

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