Temperature dependence of the optical properties of Ba0.75Sr0.25TiO3 thin films

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10284290" target="_blank" >RIV/00216208:11320/14:10284290 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/14:00439394
Result on the web
<a href="http://dx.doi.org/10.1016/j.tsf.2013.11.147" target="_blank" >http://dx.doi.org/10.1016/j.tsf.2013.11.147</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tsf.2013.11.147" target="_blank" >10.1016/j.tsf.2013.11.147</a>

Result language
angličtina
Original language name
Temperature dependence of the optical properties of Ba0.75Sr0.25TiO3 thin films
Original language description
Optical properties of Ba0.75Sr0.25TiO3 (BST(75/25)) ferroelectric thin film have been investigated by spectroscopic ellipsometry in a broad temperature interval from 10 to 300 K. The polycrystalline perovskite-phase BST films were prepared by pulsed laser deposition technique. The complex dielectric functions and optical parameters of the films were determined in the 1.5-5.5 eV spectral range. The spectra can be divided into two distinctive regions according to the magnitude of absorption coefficient separated by a band gap. An apparent reduction of the band gap was observed on increasing temperature. This can be ascribed to the renormalization of electronic band structure due to the electron-phonon interaction, which follows the Bose-Einstein model. (C) 2013 Elsevier B.V. All rights reserved.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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