Skip to Main content Skip to Navigation
Conference papers

Terahertz and far-infrared response of BaxSr1-xTiO3 films

Abstract : Here, we report on the experimental study of terahertz (THz) and far-infrared dielectric response of polycrystalline BaxSr1-xTiO3 (x = 0.5, 0.7, and 0.8) films of 0.3-1 mu m thicknesses deposited on a sapphire. THz and far-infrared transmission measurements were performed in 100-420 K temperature range covering the vicinity of TC of their bulk prototypes. We identified all polar optical phonons observed in bulk samples below 400 cm-1 of the same composition including soft and central modes and found some additional features, which we assigned to the depolarizing field effect coming from the structural inhomogeneity and unreleased strain.
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-00672151
Contributor : Bernadette Bergeret <>
Submitted on : Monday, February 20, 2012 - 4:10:35 PM
Last modification on : Friday, May 3, 2019 - 5:40:42 PM

Identifiers

Collections

Citation

P. Kuzel, E. Simon, T. Ostapchuk, J. Hlinka, S. Kamba, et al.. Terahertz and far-infrared response of BaxSr1-xTiO3 films. Czech-Polish Seminar 2010 on Structural and Ferroelectric Phase Transitions, May 2010, Telč, Czech Republic. pp.966-973, ⟨10.1080/01411594.2010.509608⟩. ⟨hal-00672151⟩

Share

Metrics

Record views

145